A new algorithm for identifying the flavour of B0 s mesons at LHCb

R. Aaij, C. Abellán Beteta, B. Adeva, M. Adinolfi, A. Affolder, Z. Ajaltouni, S. Akar, J. Albrecht, F. Alessio, M. Alexander, S. Ali, G. Alkhazov, P. Alvarez Cartelle, A. A. Alves, S. Amato, S. Amerio, Y. Amhis, L. An, L. Anderlini, G. Andreassi & 715 others M. Andreotti, J. E. Andrews, R. B. Appleby, O. Aquines Gutierrez, F. Archilli, P. D'Argent, A. Artamonov, Marina Artuso, E. Aslanides, G. Auriemma, M. Baalouch, S. Bachmann, J. J. Back, A. Badalov, C. Baesso, W. Baldini, R. J. Barlow, C. Barschel, S. Barsuk, W. Barter, V. Batozskaya, V. Battista, A. Bay, L. Beaucourt, J. Beddow, F. Bedeschi, I. Bediaga, L. J. Bel, V. Bellee, N. Belloli, I. Belyaev, E. Ben-Haim, G. Bencivenni, S. Benson, J. Benton, A. Berezhnoy, R. Bernet, A. Bertolin, F. Betti, M. O. Bettler, M. Van Beuzekom, S. Bifani, P. Billoir, T. Bird, A. Birnkraut, A. Bizzeti, T. Blake, F. Blanc, J. Blouw, Steven Roy Blusk, V. Bocci, A. Bondar, N. Bondar, W. Bonivento, A. Borgheresi, S. Borghi, M. Borisyak, M. Borsato, T. J.V. Bowcock, E. Bowen, C. Bozzi, S. Braun, M. Britsch, T. Britton, J. Brodzicka, N. H. Brook, E. Buchanan, C. Burr, A. Bursche, J. Buytaert, S. Cadeddu, R. Calabrese, M. Calvi, M. Calvo Gomez, P. Campana, D. Campora Perez, L. Capriotti, A. Carbone, G. Carboni, R. Cardinale, A. Cardini, P. Carniti, L. Carson, K. Carvalho Akiba, G. Casse, L. Cassina, L. Castillo Garcia, M. Cattaneo, Ch Cauet, G. Cavallero, R. Cenci, M. Charles, Ph Charpentier, G. Chatzikonstantinidis, M. Chefdeville, S. Chen, S. F. Cheung, N. Chiapolini, M. Chrzaszcz, X. Cid Vidal, G. Ciezarek, P. E.L. Clarke, M. Clemencic, H. V. Cliff, J. Closier, V. Coco, J. Cogan, E. Cogneras, V. Cogoni, L. Cojocariu, G. Collazuol, P. Collins, A. Comerma-Montells, A. Contu, A. Cook, M. Coombes, S. Coquereau, G. Corti, M. Corvo, B. Couturier, G. A. Cowan, D. C. Craik, A. Crocombe, M. Cruz Torres, S. Cunliffe, R. Currie, C. D'Ambrosio, E. Dall'Occo, J. Dalseno, P. N.Y. David, A. Davis, O. De Aguiar Francisco, K. De Bruyn, S. De Capua, M. De Cian, J. M. De Miranda, L. De Paula, P. De Simone, C. T. Dean, D. Decamp, M. Deckenhoff, L. Del Buono, N. Déléage, M. Demmer, D. Derkach, O. Deschamps, F. Dettori, B. Dey, A. Di Canto, F. Di Ruscio, H. Dijkstra, S. Donleavy, F. Dordei, M. Dorigo, A. Dosil Suárez, A. Dovbnya, K. Dreimanis, L. Dufour, G. Dujany, K. Dungs, P. Durante, R. Dzhelyadin, A. Dziurda, A. Dzyuba, S. Easo, U. Egede, V. Egorychev, S. Eidelman, S. Eisenhardt, U. Eitschberger, R. Ekelhof, L. Eklund, I. El Rifai, Ch Elsasser, S. Ely, S. Esen, H. M. Evans, T. Evans, A. Falabella, C. Färber, N. Farley, S. Farry, R. Fay, D. Fazzini, D. Ferguson, V. Fernandez Albor, F. Ferrari, F. Ferreira Rodrigues, M. Ferro-Luzzi, S. Filippov, M. Fiore, M. Fiorini, M. Firlej, C. Fitzpatrick, T. Fiutowski, F. Fleuret, K. Fohl, P. Fol, M. Fontana, F. Fontanelli, D. C. Forshaw, R. Forty, M. Frank, C. Frei, M. Frosini, J. Fu, E. Furfaro, A. Gallas Torreira, D. Galli, S. Gallorini, S. Gambetta, M. Gandelman, P. Gandini, Y. Gao, J. García Pardiñas, J. Garra Tico, L. Garrido, D. Gascon, C. Gaspar, L. Gavardi, G. Gazzoni, D. Gerick, E. Gersabeck, M. Gersabeck, T. Gershon, Ph Ghez, S. Gian, V. Gibson, O. G. Girard, L. Giubega, V. V. Gligorov, C. Göbel, D. Golubkov, A. Golutvin, A. Gomes, C. Gotti, M. Grabalosa Gándara, R. Graciani Diaz, L. A. Granado Cardoso, E. Graugés, E. Graverini, G. Graziani, A. Grecu, P. Griffith, L. Grillo, O. Grönberg, B. Gui, E. Gushchin, Yu Guz, T. Gys, T. Hadavizadeh, C. Hadjivasiliou, G. Haefeli, C. Haen, S. C. Haines, S. Hall, B. Hamilton, X. Han, S. Hansmann-Menzemer, N. Harnew, S. T. Harnew, J. Harrison, J. He, T. Head, V. Heijne, A. Heister, K. Hennessy, P. Henrard, L. Henry, J. A. Hernando Morata, E. Van Herwijnen, M. Heß, A. Hicheur, D. Hill, M. Hoballah, C. Hombach, W. Hulsbergen, T. Humair, M. Hushchyn, N. Hussain, D. Hutchcroft, D. Hynds, M. Idzik, P. Ilten, R. Jacobsson, A. Jaeger, J. Jalocha, E. Jans, A. Jawahery, M. John, D. Johnson, C. R. Jones, C. Joram, B. Jost, N. Jurik, S. Kandybei, W. Kanso, M. Karacson, T. M. Karbach, S. Karodia, M. Kecke, M. Kelsey, I. R. Kenyon, M. Kenzie, T. Ketel, E. Khairullin, B. Khanji, C. Khurewathanakul, T. Kirn, S. Klaver, K. Klimaszewski, O. Kochebina, M. Kolpin, I. Komarov, R. F. Koopman, P. Koppenburg, M. Kozeiha, L. Kravchuk, K. Kreplin, M. Kreps, G. Krocker, P. Krokovny, F. Kruse, W. Krzemien, W. Kucewicz, M. Kucharczyk, V. Kudryavtsev, A. K. Kuonen, K. Kurek, T. Kvaratskheliya, D. Lacarrere, G. Lafferty, A. Lai, D. Lambert, G. Lanfranchi, C. Langenbruch, B. Langhans, T. Latham, C. Lazzeroni, R. Le Gac, J. Van Leerdam, J. P. Lees, R. Lefèvre, A. Leflat, J. Lefrançois, E. Lemos Cid, O. Leroy, T. Lesiak, B. Leverington, Y. Li, T. Likhomanenko, M. Liles, R. Lindner, C. Linn, F. Lionetto, B. Liu, X. Liu, D. Loh, I. Longstaff, J. H. Lopes, D. Lucchesi, M. Lucio Martinez, H. Luo, A. Lupato, E. Luppi, O. Lupton, N. Lusardi, A. Lusiani, F. Machefert, F. Maciuc, O. Maev, K. Maguire, S. Malde, A. Malinin, G. Manca, G. Mancinelli, P. Manning, A. Mapelli, J. Maratas, J. F. Marchand, U. Marconi, C. Marin Benito, P. Marino, J. Marks, G. Martellotti, M. Martin, M. Martinelli, D. Martinez Santos, F. Martinez Vidal, D. Martins Tostes, L. M. Massacrier, A. Massafferri, R. Matev, A. Mathad, Z. Mathe, C. Matteuzzi, A. Mauri, B. Maurin, A. Mazurov, M. McCann, J. McCarthy, A. McNab, R. McNulty, B. Meadows, F. Meier, M. Meissner, D. Melnychuk, M. Merk, A. Merli, E. Michielin, D. A. Milanes, M. N. Minard, D. S. Mitzel, J. Molina Rodriguez, I. A. Monroy, S. Monteil, M. Morandin, P. Morawski, A. Mordà, M. J. Morello, J. Moron, A. B. Morris, R. Mountain, F. Muheim, D. Möller, J. Möller, K. Möller, V. Möller, M. Mussini, B. Muster, P. Naik, T. Nakada, R. Nandakumar, A. Nandi, I. Nasteva, M. Needham, N. Neri, S. Neubert, N. Neufeld, M. Neuner, A. D. Nguyen, C. Nguyen-Mau, V. Niess, S. Nieswand, R. Niet, N. Nikitin, T. Nikodem, A. Novoselov, D. P. O'Hanlon, A. Oblakowska-Mucha, V. Obraztsov, S. Ogilvy, O. Okhrimenko, R. Oldeman, C. J.G. Onderwater, B. Osorio Rodrigues, J. M. Otalora Goicochea, A. Otto, P. Owen, A. Oyanguren, A. Palano, F. Palombo, M. Palutan, J. Panman, A. Papanestis, M. Pappagallo, L. L. Pappalardo, C. Pappenheimer, W. Parker, C. Parkes, G. Passaleva, G. D. Patel, M. Patel, C. Patrignani, A. Pearce, A. Pellegrino, G. Penso, M. Pepe Altarelli, S. Perazzini, P. Perret, L. Pescatore, K. Petridis, A. Petrolini, M. Petruzzo, E. Picatoste Olloqui, B. Pietrzyk, M. Pikies, D. Pinci, A. Pistone, A. Piucci, S. Playfer, M. Plo Casasus, T. Poikela, F. Polci, A. Poluektov, I. Polyakov, E. Polycarpo, A. Popov, D. Popov, B. Popovici, C. Potterat, E. Price, J. D. Price, J. Prisciandaro, A. Pritchard, C. Prouve, V. Pugatch, A. Puig Navarro, G. Punzi, W. Qian, R. Quagliani, B. Rachwal, J. H. Rademacker, M. Rama, M. Ramos Pernas, M. S. Rangel, I. Raniuk, G. Raven, F. Redi, S. Reichert, A. C. Dos Reis, V. Renaudin, S. Ricciardi, S. Richards, M. Rihl, K. Rinnert, V. Rives Molina, P. Robbe, A. B. Rodrigues, E. Rodrigues, J. A. Rodriguez Lopez, P. Rodriguez Perez, A. Rogozhnikov, S. Roiser, V. Romanovsky, A. Romero Vidal, J. W. Ronayne, M. Rotondo, T. Ruf, P. Ruiz Valls, J. J. Saborido Silva, N. Sagidova, B. Saitta, V. Salustino Guimaraes, C. Sanchez Mayordomo, B. Sanmartin Sedes, R. Santacesaria, C. Santamarina Rios, M. Santimaria, E. Santovetti, A. Sarti, C. Satriano, A. Satta, D. M. Saunders, D. Savrina, S. Schael, M. Schiller, H. Schindler, M. Schlupp, M. Schmelling, T. Schmelzer, B. Schmidt, O. Schneider, A. Schopper, M. Schubiger, M. H. Schune, R. Schwemmer, B. Sciascia, A. Sciubba, A. Semennikov, N. Serra, J. Serrano, L. Sestini, P. Seyfert, M. Shapkin, I. Shapoval, Y. Shcheglov, T. Shears, L. Shekhtman, V. Shevchenko, A. Shires, B. G. Siddi, R. Silva Coutinho, L. Silva De Oliveira, G. Simi, M. Sirendi, N. Skidmore, Tomasz Skwarnicki, E. Smith, I. T. Smith, J. Smith, M. Smith, H. Snoek, M. D. Sokoloff, F. J.P. Soler, F. Soomro, D. Souza, B. Souza De Paula, B. Spaan, P. Spradlin, S. Sridharan, F. Stagni, M. Stahl, S. Stahl, S. Stefkova, O. Steinkamp, O. Stenyakin, S. Stevenson, S. Stoica, Sheldon Stone, B. Storaci, S. Stracka, M. Straticiuc, U. Straumann, L. Sun, W. Sutcliffe, K. Swientek, S. Swientek, V. Syropoulos, M. Szczekowski, T. Szumlak, S. T'Jampens, A. Tayduganov, T. Tekampe, G. Tellarini, F. Teubert, C. Thomas, E. Thomas, J. Van Tilburg, V. Tisserand, M. Tobin, J. Todd, S. Tolk, L. Tomassetti, D. Tonelli, S. Topp-Joergensen, E. Tournefier, S. Tourneur, K. Trabelsi, M. Traill, M. T. Tran, M. Tresch, A. Trisovic, A. Tsaregorodtsev, P. Tsopelas, N. Tuning, A. Ukleja, A. Ustyuzhanin, U. Uwer, C. Vacca, V. Vagnoni, G. Valenti, A. Vallier, R. Vazquez Gomez, P. Vazquez Regueiro, C. Vázquez Sierra, S. Vecchi, M. Van Veghel, J. J. Velthuis, M. Veltri, G. Veneziano, M. Vesterinen, B. Viaud, D. Vieira, M. Vieites Diaz, X. Vilasis-Cardona, V. Volkov, A. Vollhardt, D. Voong, A. Vorobyev, V. Vorobyev, C. Voß, J. A. De Vries, R. Waldi, C. Wallace, R. Wallace, J. Walsh, J. Wang, D. R. Ward, N. K. Watson, D. Websdale, A. Weiden, M. Whitehead, J. Wicht, G. Wilkinson, M. Wilkinson, M. Williams, M. P. Williams, M. Williams, T. Williams, F. F. Wilson, J. Wimberley, J. Wishahi, W. Wislicki, M. Witek, G. Wormser, S. A. Wotton, K. Wraight, S. Wright, K. Wyllie, Y. Xie, Z. Xu, Z. Yang, J. Yu, X. Yuan, O. Yushchenko, M. Zangoli, M. Zavertyaev, L. Zhang, Y. Zhang, A. Zhelezov, A. Zhokhov, L. Zhong, V. Zhukov, S. Zucchelli

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

A new algorithm for the determination of the initial flavour of B0 s mesons is presented. The algorithm is based on two neural networks and exploits the b hadron production mechanism at a hadron collider. The first network is trained to select charged kaons produced in association with the B0 s meson. The second network combines the kaon charges to assign the B0 s flavour and estimates the probability of a wrong assignment. The algorithm is calibrated using data corresponding to an integrated luminosity of 3 fb-1 collected by the LHCb experiment in protonproton collisions at 7 and 8 TeV centre-of-mass energies. The calibration is performed in two ways: by resolving the B0 sB0 s flavour oscillations in B0 s →D- s φ+ decays, and by analysing flavour-specific B∗ s2 (5840)0→ B+K- decays. The tagging power measured in B0 s → D- s φ+ decays is found to be (1:80 ± 0:19 (stat) ± 0:18 (syst))%, which is an improvement of about 50% compared to a similar algorithm previously used in the LHCb experiment.

Original languageEnglish (US)
Article numberP05010
JournalJournal of Instrumentation
Volume11
Issue number5
DOIs
StatePublished - May 17 2016

Fingerprint

Flavors
Mesons
mesons
Decay
decay
kaons
Colliding beam accelerators
Tagging
Barycentre
marking
Experiment
center of mass
Assign
Luminance
Calibration
Assignment
Collision
Experiments
luminosity
Charge

Keywords

  • Analysis and statistical methods
  • Calibration and fitting methods
  • Cluster finding
  • Particle identification methods
  • Pattern recognition

ASJC Scopus subject areas

  • Instrumentation
  • Mathematical Physics

Cite this

Aaij, R., Abellán Beteta, C., Adeva, B., Adinolfi, M., Affolder, A., Ajaltouni, Z., ... Zucchelli, S. (2016). A new algorithm for identifying the flavour of B0 s mesons at LHCb. Journal of Instrumentation, 11(5), [P05010]. https://doi.org/10.1088/1748-0221/11/05/P05010

A new algorithm for identifying the flavour of B0 s mesons at LHCb. / Aaij, R.; Abellán Beteta, C.; Adeva, B.; Adinolfi, M.; Affolder, A.; Ajaltouni, Z.; Akar, S.; Albrecht, J.; Alessio, F.; Alexander, M.; Ali, S.; Alkhazov, G.; Alvarez Cartelle, P.; Alves, A. A.; Amato, S.; Amerio, S.; Amhis, Y.; An, L.; Anderlini, L.; Andreassi, G.; Andreotti, M.; Andrews, J. E.; Appleby, R. B.; Aquines Gutierrez, O.; Archilli, F.; D'Argent, P.; Artamonov, A.; Artuso, Marina; Aslanides, E.; Auriemma, G.; Baalouch, M.; Bachmann, S.; Back, J. J.; Badalov, A.; Baesso, C.; Baldini, W.; Barlow, R. J.; Barschel, C.; Barsuk, S.; Barter, W.; Batozskaya, V.; Battista, V.; Bay, A.; Beaucourt, L.; Beddow, J.; Bedeschi, F.; Bediaga, I.; Bel, L. J.; Bellee, V.; Belloli, N.; Belyaev, I.; Ben-Haim, E.; Bencivenni, G.; Benson, S.; Benton, J.; Berezhnoy, A.; Bernet, R.; Bertolin, A.; Betti, F.; Bettler, M. O.; Van Beuzekom, M.; Bifani, S.; Billoir, P.; Bird, T.; Birnkraut, A.; Bizzeti, A.; Blake, T.; Blanc, F.; Blouw, J.; Blusk, Steven Roy; Bocci, V.; Bondar, A.; Bondar, N.; Bonivento, W.; Borgheresi, A.; Borghi, S.; Borisyak, M.; Borsato, M.; Bowcock, T. J.V.; Bowen, E.; Bozzi, C.; Braun, S.; Britsch, M.; Britton, T.; Brodzicka, J.; Brook, N. H.; Buchanan, E.; Burr, C.; Bursche, A.; Buytaert, J.; Cadeddu, S.; Calabrese, R.; Calvi, M.; Calvo Gomez, M.; Campana, P.; Campora Perez, D.; Capriotti, L.; Carbone, A.; Carboni, G.; Cardinale, R.; Cardini, A.; Carniti, P.; Carson, L.; Carvalho Akiba, K.; Casse, G.; Cassina, L.; Castillo Garcia, L.; Cattaneo, M.; Cauet, Ch; Cavallero, G.; Cenci, R.; Charles, M.; Charpentier, Ph; Chatzikonstantinidis, G.; Chefdeville, M.; Chen, S.; Cheung, S. F.; Chiapolini, N.; Chrzaszcz, M.; Cid Vidal, X.; Ciezarek, G.; Clarke, P. E.L.; Clemencic, M.; Cliff, H. V.; Closier, J.; Coco, V.; Cogan, J.; Cogneras, E.; Cogoni, V.; Cojocariu, L.; Collazuol, G.; Collins, P.; Comerma-Montells, A.; Contu, A.; Cook, A.; Coombes, M.; Coquereau, S.; Corti, G.; Corvo, M.; Couturier, B.; Cowan, G. A.; Craik, D. C.; Crocombe, A.; Cruz Torres, M.; Cunliffe, S.; Currie, R.; D'Ambrosio, C.; Dall'Occo, E.; Dalseno, J.; David, P. N.Y.; Davis, A.; De Aguiar Francisco, O.; De Bruyn, K.; De Capua, S.; De Cian, M.; De Miranda, J. M.; De Paula, L.; De Simone, P.; Dean, C. T.; Decamp, D.; Deckenhoff, M.; Del Buono, L.; Déléage, N.; Demmer, M.; Derkach, D.; Deschamps, O.; Dettori, F.; Dey, B.; Di Canto, A.; Di Ruscio, F.; Dijkstra, H.; Donleavy, S.; Dordei, F.; Dorigo, M.; Dosil Suárez, A.; Dovbnya, A.; Dreimanis, K.; Dufour, L.; Dujany, G.; Dungs, K.; Durante, P.; Dzhelyadin, R.; Dziurda, A.; Dzyuba, A.; Easo, S.; Egede, U.; Egorychev, V.; Eidelman, S.; Eisenhardt, S.; Eitschberger, U.; Ekelhof, R.; Eklund, L.; El Rifai, I.; Elsasser, Ch; Ely, S.; Esen, S.; Evans, H. M.; Evans, T.; Falabella, A.; Färber, C.; Farley, N.; Farry, S.; Fay, R.; Fazzini, D.; Ferguson, D.; Fernandez Albor, V.; Ferrari, F.; Ferreira Rodrigues, F.; Ferro-Luzzi, M.; Filippov, S.; Fiore, M.; Fiorini, M.; Firlej, M.; Fitzpatrick, C.; Fiutowski, T.; Fleuret, F.; Fohl, K.; Fol, P.; Fontana, M.; Fontanelli, F.; Forshaw, D. C.; Forty, R.; Frank, M.; Frei, C.; Frosini, M.; Fu, J.; Furfaro, E.; Gallas Torreira, A.; Galli, D.; Gallorini, S.; Gambetta, S.; Gandelman, M.; Gandini, P.; Gao, Y.; García Pardiñas, J.; Garra Tico, J.; Garrido, L.; Gascon, D.; Gaspar, C.; Gavardi, L.; Gazzoni, G.; Gerick, D.; Gersabeck, E.; Gersabeck, M.; Gershon, T.; Ghez, Ph; Gian, S.; Gibson, V.; Girard, O. G.; Giubega, L.; Gligorov, V. V.; Göbel, C.; Golubkov, D.; Golutvin, A.; Gomes, A.; Gotti, C.; Grabalosa Gándara, M.; Graciani Diaz, R.; Granado Cardoso, L. A.; Graugés, E.; Graverini, E.; Graziani, G.; Grecu, A.; Griffith, P.; Grillo, L.; Grönberg, O.; Gui, B.; Gushchin, E.; Guz, Yu; Gys, T.; Hadavizadeh, T.; Hadjivasiliou, C.; Haefeli, G.; Haen, C.; Haines, S. C.; Hall, S.; Hamilton, B.; Han, X.; Hansmann-Menzemer, S.; Harnew, N.; Harnew, S. T.; Harrison, J.; He, J.; Head, T.; Heijne, V.; Heister, A.; Hennessy, K.; Henrard, P.; Henry, L.; Hernando Morata, J. A.; Van Herwijnen, E.; Heß, M.; Hicheur, A.; Hill, D.; Hoballah, M.; Hombach, C.; Hulsbergen, W.; Humair, T.; Hushchyn, M.; Hussain, N.; Hutchcroft, D.; Hynds, D.; Idzik, M.; Ilten, P.; Jacobsson, R.; Jaeger, A.; Jalocha, J.; Jans, E.; Jawahery, A.; John, M.; Johnson, D.; Jones, C. R.; Joram, C.; Jost, B.; Jurik, N.; Kandybei, S.; Kanso, W.; Karacson, M.; Karbach, T. M.; Karodia, S.; Kecke, M.; Kelsey, M.; Kenyon, I. R.; Kenzie, M.; Ketel, T.; Khairullin, E.; Khanji, B.; Khurewathanakul, C.; Kirn, T.; Klaver, S.; Klimaszewski, K.; Kochebina, O.; Kolpin, M.; Komarov, I.; Koopman, R. F.; Koppenburg, P.; Kozeiha, M.; Kravchuk, L.; Kreplin, K.; Kreps, M.; Krocker, G.; Krokovny, P.; Kruse, F.; Krzemien, W.; Kucewicz, W.; Kucharczyk, M.; Kudryavtsev, V.; Kuonen, A. K.; Kurek, K.; Kvaratskheliya, T.; Lacarrere, D.; Lafferty, G.; Lai, A.; Lambert, D.; Lanfranchi, G.; Langenbruch, C.; Langhans, B.; Latham, T.; Lazzeroni, C.; Le Gac, R.; Van Leerdam, J.; Lees, J. P.; Lefèvre, R.; Leflat, A.; Lefrançois, J.; Lemos Cid, E.; Leroy, O.; Lesiak, T.; Leverington, B.; Li, Y.; Likhomanenko, T.; Liles, M.; Lindner, R.; Linn, C.; Lionetto, F.; Liu, B.; Liu, X.; Loh, D.; Longstaff, I.; Lopes, J. H.; Lucchesi, D.; Lucio Martinez, M.; Luo, H.; Lupato, A.; Luppi, E.; Lupton, O.; Lusardi, N.; Lusiani, A.; Machefert, F.; Maciuc, F.; Maev, O.; Maguire, K.; Malde, S.; Malinin, A.; Manca, G.; Mancinelli, G.; Manning, P.; Mapelli, A.; Maratas, J.; Marchand, J. F.; Marconi, U.; Marin Benito, C.; Marino, P.; Marks, J.; Martellotti, G.; Martin, M.; Martinelli, M.; Martinez Santos, D.; Martinez Vidal, F.; Martins Tostes, D.; Massacrier, L. M.; Massafferri, A.; Matev, R.; Mathad, A.; Mathe, Z.; Matteuzzi, C.; Mauri, A.; Maurin, B.; Mazurov, A.; McCann, M.; McCarthy, J.; McNab, A.; McNulty, R.; Meadows, B.; Meier, F.; Meissner, M.; Melnychuk, D.; Merk, M.; Merli, A.; Michielin, E.; Milanes, D. A.; Minard, M. N.; Mitzel, D. S.; Molina Rodriguez, J.; Monroy, I. A.; Monteil, S.; Morandin, M.; Morawski, P.; Mordà, A.; Morello, M. J.; Moron, J.; Morris, A. B.; Mountain, R.; Muheim, F.; Möller, D.; Möller, J.; Möller, K.; Möller, V.; Mussini, M.; Muster, B.; Naik, P.; Nakada, T.; Nandakumar, R.; Nandi, A.; Nasteva, I.; Needham, M.; Neri, N.; Neubert, S.; Neufeld, N.; Neuner, M.; Nguyen, A. D.; Nguyen-Mau, C.; Niess, V.; Nieswand, S.; Niet, R.; Nikitin, N.; Nikodem, T.; Novoselov, A.; O'Hanlon, D. P.; Oblakowska-Mucha, A.; Obraztsov, V.; Ogilvy, S.; Okhrimenko, O.; Oldeman, R.; Onderwater, C. J.G.; Osorio Rodrigues, B.; Otalora Goicochea, J. M.; Otto, A.; Owen, P.; Oyanguren, A.; Palano, A.; Palombo, F.; Palutan, M.; Panman, J.; Papanestis, A.; Pappagallo, M.; Pappalardo, L. L.; Pappenheimer, C.; Parker, W.; Parkes, C.; Passaleva, G.; Patel, G. D.; Patel, M.; Patrignani, C.; Pearce, A.; Pellegrino, A.; Penso, G.; Pepe Altarelli, M.; Perazzini, S.; Perret, P.; Pescatore, L.; Petridis, K.; Petrolini, A.; Petruzzo, M.; Picatoste Olloqui, E.; Pietrzyk, B.; Pikies, M.; Pinci, D.; Pistone, A.; Piucci, A.; Playfer, S.; Plo Casasus, M.; Poikela, T.; Polci, F.; Poluektov, A.; Polyakov, I.; Polycarpo, E.; Popov, A.; Popov, D.; Popovici, B.; Potterat, C.; Price, E.; Price, J. D.; Prisciandaro, J.; Pritchard, A.; Prouve, C.; Pugatch, V.; Puig Navarro, A.; Punzi, G.; Qian, W.; Quagliani, R.; Rachwal, B.; Rademacker, J. H.; Rama, M.; Ramos Pernas, M.; Rangel, M. S.; Raniuk, I.; Raven, G.; Redi, F.; Reichert, S.; Dos Reis, A. C.; Renaudin, V.; Ricciardi, S.; Richards, S.; Rihl, M.; Rinnert, K.; Rives Molina, V.; Robbe, P.; Rodrigues, A. B.; Rodrigues, E.; Rodriguez Lopez, J. A.; Rodriguez Perez, P.; Rogozhnikov, A.; Roiser, S.; Romanovsky, V.; Romero Vidal, A.; Ronayne, J. W.; Rotondo, M.; Ruf, T.; Ruiz Valls, P.; Saborido Silva, J. J.; Sagidova, N.; Saitta, B.; Salustino Guimaraes, V.; Sanchez Mayordomo, C.; Sanmartin Sedes, B.; Santacesaria, R.; Santamarina Rios, C.; Santimaria, M.; Santovetti, E.; Sarti, A.; Satriano, C.; Satta, A.; Saunders, D. M.; Savrina, D.; Schael, S.; Schiller, M.; Schindler, H.; Schlupp, M.; Schmelling, M.; Schmelzer, T.; Schmidt, B.; Schneider, O.; Schopper, A.; Schubiger, M.; Schune, M. H.; Schwemmer, R.; Sciascia, B.; Sciubba, A.; Semennikov, A.; Serra, N.; Serrano, J.; Sestini, L.; Seyfert, P.; Shapkin, M.; Shapoval, I.; Shcheglov, Y.; Shears, T.; Shekhtman, L.; Shevchenko, V.; Shires, A.; Siddi, B. G.; Silva Coutinho, R.; Silva De Oliveira, L.; Simi, G.; Sirendi, M.; Skidmore, N.; Skwarnicki, Tomasz; Smith, E.; Smith, I. T.; Smith, J.; Smith, M.; Snoek, H.; Sokoloff, M. D.; Soler, F. J.P.; Soomro, F.; Souza, D.; Souza De Paula, B.; Spaan, B.; Spradlin, P.; Sridharan, S.; Stagni, F.; Stahl, M.; Stahl, S.; Stefkova, S.; Steinkamp, O.; Stenyakin, O.; Stevenson, S.; Stoica, S.; Stone, Sheldon; Storaci, B.; Stracka, S.; Straticiuc, M.; Straumann, U.; Sun, L.; Sutcliffe, W.; Swientek, K.; Swientek, S.; Syropoulos, V.; Szczekowski, M.; Szumlak, T.; T'Jampens, S.; Tayduganov, A.; Tekampe, T.; Tellarini, G.; Teubert, F.; Thomas, C.; Thomas, E.; Van Tilburg, J.; Tisserand, V.; Tobin, M.; Todd, J.; Tolk, S.; Tomassetti, L.; Tonelli, D.; Topp-Joergensen, S.; Tournefier, E.; Tourneur, S.; Trabelsi, K.; Traill, M.; Tran, M. T.; Tresch, M.; Trisovic, A.; Tsaregorodtsev, A.; Tsopelas, P.; Tuning, N.; Ukleja, A.; Ustyuzhanin, A.; Uwer, U.; Vacca, C.; Vagnoni, V.; Valenti, G.; Vallier, A.; Vazquez Gomez, R.; Vazquez Regueiro, P.; Vázquez Sierra, C.; Vecchi, S.; Van Veghel, M.; Velthuis, J. J.; Veltri, M.; Veneziano, G.; Vesterinen, M.; Viaud, B.; Vieira, D.; Vieites Diaz, M.; Vilasis-Cardona, X.; Volkov, V.; Vollhardt, A.; Voong, D.; Vorobyev, A.; Vorobyev, V.; Voß, C.; De Vries, J. A.; Waldi, R.; Wallace, C.; Wallace, R.; Walsh, J.; Wang, J.; Ward, D. R.; Watson, N. K.; Websdale, D.; Weiden, A.; Whitehead, M.; Wicht, J.; Wilkinson, G.; Wilkinson, M.; Williams, M.; Williams, M. P.; Williams, M.; Williams, T.; Wilson, F. F.; Wimberley, J.; Wishahi, J.; Wislicki, W.; Witek, M.; Wormser, G.; Wotton, S. A.; Wraight, K.; Wright, S.; Wyllie, K.; Xie, Y.; Xu, Z.; Yang, Z.; Yu, J.; Yuan, X.; Yushchenko, O.; Zangoli, M.; Zavertyaev, M.; Zhang, L.; Zhang, Y.; Zhelezov, A.; Zhokhov, A.; Zhong, L.; Zhukov, V.; Zucchelli, S.

In: Journal of Instrumentation, Vol. 11, No. 5, P05010, 17.05.2016.

Research output: Contribution to journalArticle

Aaij, R, Abellán Beteta, C, Adeva, B, Adinolfi, M, Affolder, A, Ajaltouni, Z, Akar, S, Albrecht, J, Alessio, F, Alexander, M, Ali, S, Alkhazov, G, Alvarez Cartelle, P, Alves, AA, Amato, S, Amerio, S, Amhis, Y, An, L, Anderlini, L, Andreassi, G, Andreotti, M, Andrews, JE, Appleby, RB, Aquines Gutierrez, O, Archilli, F, D'Argent, P, Artamonov, A, Artuso, M, Aslanides, E, Auriemma, G, Baalouch, M, Bachmann, S, Back, JJ, Badalov, A, Baesso, C, Baldini, W, Barlow, RJ, Barschel, C, Barsuk, S, Barter, W, Batozskaya, V, Battista, V, Bay, A, Beaucourt, L, Beddow, J, Bedeschi, F, Bediaga, I, Bel, LJ, Bellee, V, Belloli, N, Belyaev, I, Ben-Haim, E, Bencivenni, G, Benson, S, Benton, J, Berezhnoy, A, Bernet, R, Bertolin, A, Betti, F, Bettler, MO, Van Beuzekom, M, Bifani, S, Billoir, P, Bird, T, Birnkraut, A, Bizzeti, A, Blake, T, Blanc, F, Blouw, J, Blusk, SR, Bocci, V, Bondar, A, Bondar, N, Bonivento, W, Borgheresi, A, Borghi, S, Borisyak, M, Borsato, M, Bowcock, TJV, Bowen, E, Bozzi, C, Braun, S, Britsch, M, Britton, T, Brodzicka, J, Brook, NH, Buchanan, E, Burr, C, Bursche, A, Buytaert, J, Cadeddu, S, Calabrese, R, Calvi, M, Calvo Gomez, M, Campana, P, Campora Perez, D, Capriotti, L, Carbone, A, Carboni, G, Cardinale, R, Cardini, A, Carniti, P, Carson, L, Carvalho Akiba, K, Casse, G, Cassina, L, Castillo Garcia, L, Cattaneo, M, Cauet, C, Cavallero, G, Cenci, R, Charles, M, Charpentier, P, Chatzikonstantinidis, G, Chefdeville, M, Chen, S, Cheung, SF, Chiapolini, N, Chrzaszcz, M, Cid Vidal, X, Ciezarek, G, Clarke, PEL, Clemencic, M, Cliff, HV, Closier, J, Coco, V, Cogan, J, Cogneras, E, Cogoni, V, Cojocariu, L, Collazuol, G, Collins, P, Comerma-Montells, A, Contu, A, Cook, A, Coombes, M, Coquereau, S, Corti, G, Corvo, M, Couturier, B, Cowan, GA, Craik, DC, Crocombe, A, Cruz Torres, M, Cunliffe, S, Currie, R, D'Ambrosio, C, Dall'Occo, E, Dalseno, J, David, PNY, Davis, A, De Aguiar Francisco, O, De Bruyn, K, De Capua, S, De Cian, M, De Miranda, JM, De Paula, L, De Simone, P, Dean, CT, Decamp, D, Deckenhoff, M, Del Buono, L, Déléage, N, Demmer, M, Derkach, D, Deschamps, O, Dettori, F, Dey, B, Di Canto, A, Di Ruscio, F, Dijkstra, H, Donleavy, S, Dordei, F, Dorigo, M, Dosil Suárez, A, Dovbnya, A, Dreimanis, K, Dufour, L, Dujany, G, Dungs, K, Durante, P, Dzhelyadin, R, Dziurda, A, Dzyuba, A, Easo, S, Egede, U, Egorychev, V, Eidelman, S, Eisenhardt, S, Eitschberger, U, Ekelhof, R, Eklund, L, El Rifai, I, Elsasser, C, Ely, S, Esen, S, Evans, HM, Evans, T, Falabella, A, Färber, C, Farley, N, Farry, S, Fay, R, Fazzini, D, Ferguson, D, Fernandez Albor, V, Ferrari, F, Ferreira Rodrigues, F, Ferro-Luzzi, M, Filippov, S, Fiore, M, Fiorini, M, Firlej, M, Fitzpatrick, C, Fiutowski, T, Fleuret, F, Fohl, K, Fol, P, Fontana, M, Fontanelli, F, Forshaw, DC, Forty, R, Frank, M, Frei, C, Frosini, M, Fu, J, Furfaro, E, Gallas Torreira, A, Galli, D, Gallorini, S, Gambetta, S, Gandelman, M, Gandini, P, Gao, Y, García Pardiñas, J, Garra Tico, J, Garrido, L, Gascon, D, Gaspar, C, Gavardi, L, Gazzoni, G, Gerick, D, Gersabeck, E, Gersabeck, M, Gershon, T, Ghez, P, Gian, S, Gibson, V, Girard, OG, Giubega, L, Gligorov, VV, Göbel, C, Golubkov, D, Golutvin, A, Gomes, A, Gotti, C, Grabalosa Gándara, M, Graciani Diaz, R, Granado Cardoso, LA, Graugés, E, Graverini, E, Graziani, G, Grecu, A, Griffith, P, Grillo, L, Grönberg, O, Gui, B, Gushchin, E, Guz, Y, Gys, T, Hadavizadeh, T, Hadjivasiliou, C, Haefeli, G, Haen, C, Haines, SC, Hall, S, Hamilton, B, Han, X, Hansmann-Menzemer, S, Harnew, N, Harnew, ST, Harrison, J, He, J, Head, T, Heijne, V, Heister, A, Hennessy, K, Henrard, P, Henry, L, Hernando Morata, JA, Van Herwijnen, E, Heß, M, Hicheur, A, Hill, D, Hoballah, M, Hombach, C, Hulsbergen, W, Humair, T, Hushchyn, M, Hussain, N, Hutchcroft, D, Hynds, D, Idzik, M, Ilten, P, Jacobsson, R, Jaeger, A, Jalocha, J, Jans, E, Jawahery, A, John, M, Johnson, D, Jones, CR, Joram, C, Jost, B, Jurik, N, Kandybei, S, Kanso, W, Karacson, M, Karbach, TM, Karodia, S, Kecke, M, Kelsey, M, Kenyon, IR, Kenzie, M, Ketel, T, Khairullin, E, Khanji, B, Khurewathanakul, C, Kirn, T, Klaver, S, Klimaszewski, K, Kochebina, O, Kolpin, M, Komarov, I, Koopman, RF, Koppenburg, P, Kozeiha, M, Kravchuk, L, Kreplin, K, Kreps, M, Krocker, G, Krokovny, P, Kruse, F, Krzemien, W, Kucewicz, W, Kucharczyk, M, Kudryavtsev, V, Kuonen, AK, Kurek, K, Kvaratskheliya, T, Lacarrere, D, Lafferty, G, Lai, A, Lambert, D, Lanfranchi, G, Langenbruch, C, Langhans, B, Latham, T, Lazzeroni, C, Le Gac, R, Van Leerdam, J, Lees, JP, Lefèvre, R, Leflat, A, Lefrançois, J, Lemos Cid, E, Leroy, O, Lesiak, T, Leverington, B, Li, Y, Likhomanenko, T, Liles, M, Lindner, R, Linn, C, Lionetto, F, Liu, B, Liu, X, Loh, D, Longstaff, I, Lopes, JH, Lucchesi, D, Lucio Martinez, M, Luo, H, Lupato, A, Luppi, E, Lupton, O, Lusardi, N, Lusiani, A, Machefert, F, Maciuc, F, Maev, O, Maguire, K, Malde, S, Malinin, A, Manca, G, Mancinelli, G, Manning, P, Mapelli, A, Maratas, J, Marchand, JF, Marconi, U, Marin Benito, C, Marino, P, Marks, J, Martellotti, G, Martin, M, Martinelli, M, Martinez Santos, D, Martinez Vidal, F, Martins Tostes, D, Massacrier, LM, Massafferri, A, Matev, R, Mathad, A, Mathe, Z, Matteuzzi, C, Mauri, A, Maurin, B, Mazurov, A, McCann, M, McCarthy, J, McNab, A, McNulty, R, Meadows, B, Meier, F, Meissner, M, Melnychuk, D, Merk, M, Merli, A, Michielin, E, Milanes, DA, Minard, MN, Mitzel, DS, Molina Rodriguez, J, Monroy, IA, Monteil, S, Morandin, M, Morawski, P, Mordà, A, Morello, MJ, Moron, J, Morris, AB, Mountain, R, Muheim, F, Möller, D, Möller, J, Möller, K, Möller, V, Mussini, M, Muster, B, Naik, P, Nakada, T, Nandakumar, R, Nandi, A, Nasteva, I, Needham, M, Neri, N, Neubert, S, Neufeld, N, Neuner, M, Nguyen, AD, Nguyen-Mau, C, Niess, V, Nieswand, S, Niet, R, Nikitin, N, Nikodem, T, Novoselov, A, O'Hanlon, DP, Oblakowska-Mucha, A, Obraztsov, V, Ogilvy, S, Okhrimenko, O, Oldeman, R, Onderwater, CJG, Osorio Rodrigues, B, Otalora Goicochea, JM, Otto, A, Owen, P, Oyanguren, A, Palano, A, Palombo, F, Palutan, M, Panman, J, Papanestis, A, Pappagallo, M, Pappalardo, LL, Pappenheimer, C, Parker, W, Parkes, C, Passaleva, G, Patel, GD, Patel, M, Patrignani, C, Pearce, A, Pellegrino, A, Penso, G, Pepe Altarelli, M, Perazzini, S, Perret, P, Pescatore, L, Petridis, K, Petrolini, A, Petruzzo, M, Picatoste Olloqui, E, Pietrzyk, B, Pikies, M, Pinci, D, Pistone, A, Piucci, A, Playfer, S, Plo Casasus, M, Poikela, T, Polci, F, Poluektov, A, Polyakov, I, Polycarpo, E, Popov, A, Popov, D, Popovici, B, Potterat, C, Price, E, Price, JD, Prisciandaro, J, Pritchard, A, Prouve, C, Pugatch, V, Puig Navarro, A, Punzi, G, Qian, W, Quagliani, R, Rachwal, B, Rademacker, JH, Rama, M, Ramos Pernas, M, Rangel, MS, Raniuk, I, Raven, G, Redi, F, Reichert, S, Dos Reis, AC, Renaudin, V, Ricciardi, S, Richards, S, Rihl, M, Rinnert, K, Rives Molina, V, Robbe, P, Rodrigues, AB, Rodrigues, E, Rodriguez Lopez, JA, Rodriguez Perez, P, Rogozhnikov, A, Roiser, S, Romanovsky, V, Romero Vidal, A, Ronayne, JW, Rotondo, M, Ruf, T, Ruiz Valls, P, Saborido Silva, JJ, Sagidova, N, Saitta, B, Salustino Guimaraes, V, Sanchez Mayordomo, C, Sanmartin Sedes, B, Santacesaria, R, Santamarina Rios, C, Santimaria, M, Santovetti, E, Sarti, A, Satriano, C, Satta, A, Saunders, DM, Savrina, D, Schael, S, Schiller, M, Schindler, H, Schlupp, M, Schmelling, M, Schmelzer, T, Schmidt, B, Schneider, O, Schopper, A, Schubiger, M, Schune, MH, Schwemmer, R, Sciascia, B, Sciubba, A, Semennikov, A, Serra, N, Serrano, J, Sestini, L, Seyfert, P, Shapkin, M, Shapoval, I, Shcheglov, Y, Shears, T, Shekhtman, L, Shevchenko, V, Shires, A, Siddi, BG, Silva Coutinho, R, Silva De Oliveira, L, Simi, G, Sirendi, M, Skidmore, N, Skwarnicki, T, Smith, E, Smith, IT, Smith, J, Smith, M, Snoek, H, Sokoloff, MD, Soler, FJP, Soomro, F, Souza, D, Souza De Paula, B, Spaan, B, Spradlin, P, Sridharan, S, Stagni, F, Stahl, M, Stahl, S, Stefkova, S, Steinkamp, O, Stenyakin, O, Stevenson, S, Stoica, S, Stone, S, Storaci, B, Stracka, S, Straticiuc, M, Straumann, U, Sun, L, Sutcliffe, W, Swientek, K, Swientek, S, Syropoulos, V, Szczekowski, M, Szumlak, T, T'Jampens, S, Tayduganov, A, Tekampe, T, Tellarini, G, Teubert, F, Thomas, C, Thomas, E, Van Tilburg, J, Tisserand, V, Tobin, M, Todd, J, Tolk, S, Tomassetti, L, Tonelli, D, Topp-Joergensen, S, Tournefier, E, Tourneur, S, Trabelsi, K, Traill, M, Tran, MT, Tresch, M, Trisovic, A, Tsaregorodtsev, A, Tsopelas, P, Tuning, N, Ukleja, A, Ustyuzhanin, A, Uwer, U, Vacca, C, Vagnoni, V, Valenti, G, Vallier, A, Vazquez Gomez, R, Vazquez Regueiro, P, Vázquez Sierra, C, Vecchi, S, Van Veghel, M, Velthuis, JJ, Veltri, M, Veneziano, G, Vesterinen, M, Viaud, B, Vieira, D, Vieites Diaz, M, Vilasis-Cardona, X, Volkov, V, Vollhardt, A, Voong, D, Vorobyev, A, Vorobyev, V, Voß, C, De Vries, JA, Waldi, R, Wallace, C, Wallace, R, Walsh, J, Wang, J, Ward, DR, Watson, NK, Websdale, D, Weiden, A, Whitehead, M, Wicht, J, Wilkinson, G, Wilkinson, M, Williams, M, Williams, MP, Williams, M, Williams, T, Wilson, FF, Wimberley, J, Wishahi, J, Wislicki, W, Witek, M, Wormser, G, Wotton, SA, Wraight, K, Wright, S, Wyllie, K, Xie, Y, Xu, Z, Yang, Z, Yu, J, Yuan, X, Yushchenko, O, Zangoli, M, Zavertyaev, M, Zhang, L, Zhang, Y, Zhelezov, A, Zhokhov, A, Zhong, L, Zhukov, V & Zucchelli, S 2016, 'A new algorithm for identifying the flavour of B0 s mesons at LHCb', Journal of Instrumentation, vol. 11, no. 5, P05010. https://doi.org/10.1088/1748-0221/11/05/P05010
Aaij R, Abellán Beteta C, Adeva B, Adinolfi M, Affolder A, Ajaltouni Z et al. A new algorithm for identifying the flavour of B0 s mesons at LHCb. Journal of Instrumentation. 2016 May 17;11(5). P05010. https://doi.org/10.1088/1748-0221/11/05/P05010
Aaij, R. ; Abellán Beteta, C. ; Adeva, B. ; Adinolfi, M. ; Affolder, A. ; Ajaltouni, Z. ; Akar, S. ; Albrecht, J. ; Alessio, F. ; Alexander, M. ; Ali, S. ; Alkhazov, G. ; Alvarez Cartelle, P. ; Alves, A. A. ; Amato, S. ; Amerio, S. ; Amhis, Y. ; An, L. ; Anderlini, L. ; Andreassi, G. ; Andreotti, M. ; Andrews, J. E. ; Appleby, R. B. ; Aquines Gutierrez, O. ; Archilli, F. ; D'Argent, P. ; Artamonov, A. ; Artuso, Marina ; Aslanides, E. ; Auriemma, G. ; Baalouch, M. ; Bachmann, S. ; Back, J. J. ; Badalov, A. ; Baesso, C. ; Baldini, W. ; Barlow, R. J. ; Barschel, C. ; Barsuk, S. ; Barter, W. ; Batozskaya, V. ; Battista, V. ; Bay, A. ; Beaucourt, L. ; Beddow, J. ; Bedeschi, F. ; Bediaga, I. ; Bel, L. J. ; Bellee, V. ; Belloli, N. ; Belyaev, I. ; Ben-Haim, E. ; Bencivenni, G. ; Benson, S. ; Benton, J. ; Berezhnoy, A. ; Bernet, R. ; Bertolin, A. ; Betti, F. ; Bettler, M. O. ; Van Beuzekom, M. ; Bifani, S. ; Billoir, P. ; Bird, T. ; Birnkraut, A. ; Bizzeti, A. ; Blake, T. ; Blanc, F. ; Blouw, J. ; Blusk, Steven Roy ; Bocci, V. ; Bondar, A. ; Bondar, N. ; Bonivento, W. ; Borgheresi, A. ; Borghi, S. ; Borisyak, M. ; Borsato, M. ; Bowcock, T. J.V. ; Bowen, E. ; Bozzi, C. ; Braun, S. ; Britsch, M. ; Britton, T. ; Brodzicka, J. ; Brook, N. H. ; Buchanan, E. ; Burr, C. ; Bursche, A. ; Buytaert, J. ; Cadeddu, S. ; Calabrese, R. ; Calvi, M. ; Calvo Gomez, M. ; Campana, P. ; Campora Perez, D. ; Capriotti, L. ; Carbone, A. ; Carboni, G. ; Cardinale, R. ; Cardini, A. ; Carniti, P. ; Carson, L. ; Carvalho Akiba, K. ; Casse, G. ; Cassina, L. ; Castillo Garcia, L. ; Cattaneo, M. ; Cauet, Ch ; Cavallero, G. ; Cenci, R. ; Charles, M. ; Charpentier, Ph ; Chatzikonstantinidis, G. ; Chefdeville, M. ; Chen, S. ; Cheung, S. F. ; Chiapolini, N. ; Chrzaszcz, M. ; Cid Vidal, X. ; Ciezarek, G. ; Clarke, P. E.L. ; Clemencic, M. ; Cliff, H. V. ; Closier, J. ; Coco, V. ; Cogan, J. ; Cogneras, E. ; Cogoni, V. ; Cojocariu, L. ; Collazuol, G. ; Collins, P. ; Comerma-Montells, A. ; Contu, A. ; Cook, A. ; Coombes, M. ; Coquereau, S. ; Corti, G. ; Corvo, M. ; Couturier, B. ; Cowan, G. A. ; Craik, D. C. ; Crocombe, A. ; Cruz Torres, M. ; Cunliffe, S. ; Currie, R. ; D'Ambrosio, C. ; Dall'Occo, E. ; Dalseno, J. ; David, P. N.Y. ; Davis, A. ; De Aguiar Francisco, O. ; De Bruyn, K. ; De Capua, S. ; De Cian, M. ; De Miranda, J. M. ; De Paula, L. ; De Simone, P. ; Dean, C. T. ; Decamp, D. ; Deckenhoff, M. ; Del Buono, L. ; Déléage, N. ; Demmer, M. ; Derkach, D. ; Deschamps, O. ; Dettori, F. ; Dey, B. ; Di Canto, A. ; Di Ruscio, F. ; Dijkstra, H. ; Donleavy, S. ; Dordei, F. ; Dorigo, M. ; Dosil Suárez, A. ; Dovbnya, A. ; Dreimanis, K. ; Dufour, L. ; Dujany, G. ; Dungs, K. ; Durante, P. ; Dzhelyadin, R. ; Dziurda, A. ; Dzyuba, A. ; Easo, S. ; Egede, U. ; Egorychev, V. ; Eidelman, S. ; Eisenhardt, S. ; Eitschberger, U. ; Ekelhof, R. ; Eklund, L. ; El Rifai, I. ; Elsasser, Ch ; Ely, S. ; Esen, S. ; Evans, H. M. ; Evans, T. ; Falabella, A. ; Färber, C. ; Farley, N. ; Farry, S. ; Fay, R. ; Fazzini, D. ; Ferguson, D. ; Fernandez Albor, V. ; Ferrari, F. ; Ferreira Rodrigues, F. ; Ferro-Luzzi, M. ; Filippov, S. ; Fiore, M. ; Fiorini, M. ; Firlej, M. ; Fitzpatrick, C. ; Fiutowski, T. ; Fleuret, F. ; Fohl, K. ; Fol, P. ; Fontana, M. ; Fontanelli, F. ; Forshaw, D. 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@article{d3dc229504c24c36a4eece7a406e790f,
title = "A new algorithm for identifying the flavour of B0 s mesons at LHCb",
abstract = "A new algorithm for the determination of the initial flavour of B0 s mesons is presented. The algorithm is based on two neural networks and exploits the b hadron production mechanism at a hadron collider. The first network is trained to select charged kaons produced in association with the B0 s meson. The second network combines the kaon charges to assign the B0 s flavour and estimates the probability of a wrong assignment. The algorithm is calibrated using data corresponding to an integrated luminosity of 3 fb-1 collected by the LHCb experiment in protonproton collisions at 7 and 8 TeV centre-of-mass energies. The calibration is performed in two ways: by resolving the B0 sB0 s flavour oscillations in B0 s →D- s φ+ decays, and by analysing flavour-specific B∗ s2 (5840)0→ B+K- decays. The tagging power measured in B0 s → D- s φ+ decays is found to be (1:80 ± 0:19 (stat) ± 0:18 (syst)){\%}, which is an improvement of about 50{\%} compared to a similar algorithm previously used in the LHCb experiment.",
keywords = "Analysis and statistical methods, Calibration and fitting methods, Cluster finding, Particle identification methods, Pattern recognition",
author = "R. Aaij and {Abell{\'a}n Beteta}, C. and B. Adeva and M. Adinolfi and A. Affolder and Z. Ajaltouni and S. Akar and J. Albrecht and F. Alessio and M. Alexander and S. Ali and G. Alkhazov and {Alvarez Cartelle}, P. and Alves, {A. A.} and S. Amato and S. Amerio and Y. Amhis and L. An and L. Anderlini and G. Andreassi and M. Andreotti and Andrews, {J. E.} and Appleby, {R. B.} and {Aquines Gutierrez}, O. and F. Archilli and P. D'Argent and A. Artamonov and Marina Artuso and E. Aslanides and G. Auriemma and M. Baalouch and S. Bachmann and Back, {J. J.} and A. Badalov and C. Baesso and W. Baldini and Barlow, {R. J.} and C. Barschel and S. Barsuk and W. Barter and V. Batozskaya and V. Battista and A. Bay and L. Beaucourt and J. Beddow and F. Bedeschi and I. Bediaga and Bel, {L. J.} and V. Bellee and N. Belloli and I. Belyaev and E. Ben-Haim and G. Bencivenni and S. Benson and J. Benton and A. Berezhnoy and R. Bernet and A. Bertolin and F. Betti and Bettler, {M. 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Meier and M. Meissner and D. Melnychuk and M. Merk and A. Merli and E. Michielin and Milanes, {D. A.} and Minard, {M. N.} and Mitzel, {D. S.} and {Molina Rodriguez}, J. and Monroy, {I. A.} and S. Monteil and M. Morandin and P. Morawski and A. Mord{\`a} and Morello, {M. J.} and J. Moron and Morris, {A. B.} and R. Mountain and F. Muheim and D. M{\"o}ller and J. M{\"o}ller and K. M{\"o}ller and V. M{\"o}ller and M. Mussini and B. Muster and P. Naik and T. Nakada and R. Nandakumar and A. Nandi and I. Nasteva and M. Needham and N. Neri and S. Neubert and N. Neufeld and M. Neuner and Nguyen, {A. D.} and C. Nguyen-Mau and V. Niess and S. Nieswand and R. Niet and N. Nikitin and T. Nikodem and A. Novoselov and O'Hanlon, {D. P.} and A. Oblakowska-Mucha and V. Obraztsov and S. Ogilvy and O. Okhrimenko and R. Oldeman and Onderwater, {C. J.G.} and {Osorio Rodrigues}, B. and {Otalora Goicochea}, {J. M.} and A. Otto and P. Owen and A. Oyanguren and A. Palano and F. Palombo and M. Palutan and J. Panman and A. Papanestis and M. Pappagallo and Pappalardo, {L. L.} and C. Pappenheimer and W. Parker and C. Parkes and G. Passaleva and Patel, {G. D.} and M. Patel and C. Patrignani and A. Pearce and A. Pellegrino and G. Penso and {Pepe Altarelli}, M. and S. Perazzini and P. Perret and L. Pescatore and K. Petridis and A. Petrolini and M. Petruzzo and {Picatoste Olloqui}, E. and B. Pietrzyk and M. Pikies and D. Pinci and A. Pistone and A. Piucci and S. Playfer and {Plo Casasus}, M. and T. Poikela and F. Polci and A. Poluektov and I. Polyakov and E. Polycarpo and A. Popov and D. Popov and B. Popovici and C. Potterat and E. Price and Price, {J. D.} and J. Prisciandaro and A. Pritchard and C. Prouve and V. Pugatch and {Puig Navarro}, A. and G. Punzi and W. Qian and R. Quagliani and B. Rachwal and Rademacker, {J. H.} and M. Rama and {Ramos Pernas}, M. and Rangel, {M. S.} and I. Raniuk and G. Raven and F. Redi and S. Reichert and {Dos Reis}, {A. C.} and V. Renaudin and S. Ricciardi and S. Richards and M. Rihl and K. Rinnert and {Rives Molina}, V. and P. Robbe and Rodrigues, {A. B.} and E. Rodrigues and {Rodriguez Lopez}, {J. A.} and {Rodriguez Perez}, P. and A. Rogozhnikov and S. Roiser and V. Romanovsky and {Romero Vidal}, A. and Ronayne, {J. W.} and M. Rotondo and T. Ruf and {Ruiz Valls}, P. and {Saborido Silva}, {J. J.} and N. Sagidova and B. Saitta and {Salustino Guimaraes}, V. and {Sanchez Mayordomo}, C. and {Sanmartin Sedes}, B. and R. Santacesaria and {Santamarina Rios}, C. and M. Santimaria and E. Santovetti and A. Sarti and C. Satriano and A. Satta and Saunders, {D. M.} and D. Savrina and S. Schael and M. Schiller and H. Schindler and M. Schlupp and M. Schmelling and T. Schmelzer and B. Schmidt and O. Schneider and A. Schopper and M. Schubiger and Schune, {M. H.} and R. Schwemmer and B. Sciascia and A. Sciubba and A. Semennikov and N. Serra and J. Serrano and L. Sestini and P. Seyfert and M. Shapkin and I. Shapoval and Y. Shcheglov and T. Shears and L. Shekhtman and V. Shevchenko and A. Shires and Siddi, {B. G.} and {Silva Coutinho}, R. and {Silva De Oliveira}, L. and G. Simi and M. Sirendi and N. Skidmore and Tomasz Skwarnicki and E. Smith and Smith, {I. T.} and J. Smith and M. Smith and H. Snoek and Sokoloff, {M. D.} and Soler, {F. J.P.} and F. Soomro and D. Souza and {Souza De Paula}, B. and B. Spaan and P. Spradlin and S. Sridharan and F. Stagni and M. Stahl and S. Stahl and S. Stefkova and O. Steinkamp and O. Stenyakin and S. Stevenson and S. Stoica and Sheldon Stone and B. Storaci and S. Stracka and M. Straticiuc and U. Straumann and L. Sun and W. Sutcliffe and K. Swientek and S. Swientek and V. Syropoulos and M. Szczekowski and T. Szumlak and S. T'Jampens and A. Tayduganov and T. Tekampe and G. Tellarini and F. Teubert and C. Thomas and E. Thomas and {Van Tilburg}, J. and V. Tisserand and M. Tobin and J. Todd and S. Tolk and L. Tomassetti and D. Tonelli and S. Topp-Joergensen and E. Tournefier and S. Tourneur and K. Trabelsi and M. Traill and Tran, {M. T.} and M. Tresch and A. Trisovic and A. Tsaregorodtsev and P. Tsopelas and N. Tuning and A. Ukleja and A. Ustyuzhanin and U. Uwer and C. Vacca and V. Vagnoni and G. Valenti and A. Vallier and {Vazquez Gomez}, R. and {Vazquez Regueiro}, P. and {V{\'a}zquez Sierra}, C. and S. Vecchi and {Van Veghel}, M. and Velthuis, {J. J.} and M. Veltri and G. Veneziano and M. Vesterinen and B. Viaud and D. Vieira and {Vieites Diaz}, M. and X. Vilasis-Cardona and V. Volkov and A. Vollhardt and D. Voong and A. Vorobyev and V. Vorobyev and C. Vo{\ss} and {De Vries}, {J. A.} and R. Waldi and C. Wallace and R. Wallace and J. Walsh and J. Wang and Ward, {D. R.} and Watson, {N. K.} and D. Websdale and A. Weiden and M. Whitehead and J. Wicht and G. Wilkinson and M. Wilkinson and M. Williams and Williams, {M. P.} and M. Williams and T. Williams and Wilson, {F. F.} and J. Wimberley and J. Wishahi and W. Wislicki and M. Witek and G. Wormser and Wotton, {S. A.} and K. Wraight and S. Wright and K. Wyllie and Y. Xie and Z. Xu and Z. Yang and J. Yu and X. Yuan and O. Yushchenko and M. Zangoli and M. Zavertyaev and L. Zhang and Y. Zhang and A. Zhelezov and A. Zhokhov and L. Zhong and V. Zhukov and S. Zucchelli",
year = "2016",
month = "5",
day = "17",
doi = "10.1088/1748-0221/11/05/P05010",
language = "English (US)",
volume = "11",
journal = "Journal of Instrumentation",
issn = "1748-0221",
publisher = "IOP Publishing Ltd.",
number = "5",

}

TY - JOUR

T1 - A new algorithm for identifying the flavour of B0 s mesons at LHCb

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PY - 2016/5/17

Y1 - 2016/5/17

N2 - A new algorithm for the determination of the initial flavour of B0 s mesons is presented. The algorithm is based on two neural networks and exploits the b hadron production mechanism at a hadron collider. The first network is trained to select charged kaons produced in association with the B0 s meson. The second network combines the kaon charges to assign the B0 s flavour and estimates the probability of a wrong assignment. The algorithm is calibrated using data corresponding to an integrated luminosity of 3 fb-1 collected by the LHCb experiment in protonproton collisions at 7 and 8 TeV centre-of-mass energies. The calibration is performed in two ways: by resolving the B0 sB0 s flavour oscillations in B0 s →D- s φ+ decays, and by analysing flavour-specific B∗ s2 (5840)0→ B+K- decays. The tagging power measured in B0 s → D- s φ+ decays is found to be (1:80 ± 0:19 (stat) ± 0:18 (syst))%, which is an improvement of about 50% compared to a similar algorithm previously used in the LHCb experiment.

AB - A new algorithm for the determination of the initial flavour of B0 s mesons is presented. The algorithm is based on two neural networks and exploits the b hadron production mechanism at a hadron collider. The first network is trained to select charged kaons produced in association with the B0 s meson. The second network combines the kaon charges to assign the B0 s flavour and estimates the probability of a wrong assignment. The algorithm is calibrated using data corresponding to an integrated luminosity of 3 fb-1 collected by the LHCb experiment in protonproton collisions at 7 and 8 TeV centre-of-mass energies. The calibration is performed in two ways: by resolving the B0 sB0 s flavour oscillations in B0 s →D- s φ+ decays, and by analysing flavour-specific B∗ s2 (5840)0→ B+K- decays. The tagging power measured in B0 s → D- s φ+ decays is found to be (1:80 ± 0:19 (stat) ± 0:18 (syst))%, which is an improvement of about 50% compared to a similar algorithm previously used in the LHCb experiment.

KW - Analysis and statistical methods

KW - Calibration and fitting methods

KW - Cluster finding

KW - Particle identification methods

KW - Pattern recognition

UR - http://www.scopus.com/inward/record.url?scp=85013852211&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85013852211&partnerID=8YFLogxK

U2 - 10.1088/1748-0221/11/05/P05010

DO - 10.1088/1748-0221/11/05/P05010

M3 - Article

VL - 11

JO - Journal of Instrumentation

JF - Journal of Instrumentation

SN - 1748-0221

IS - 5

M1 - P05010

ER -