Erratum to

Measurements of prompt charm production cross-sections in pp collisions at s = 13 √ s = TeV (Journal of High Energy Physics, (2016), 2016, 3, (159), 10.1007/JHEP03(2016)159)

The Lhcb Collaboration

Research output: Contribution to journalComment/debate

18 Citations (Scopus)

Abstract

An issue has been identified in the simulated samples used to calculate the efficiencies, which affects the published cross-section measurements from pp collisions at √ s = 13TeV [1]. What follows is a brief description of the nature of the problems, before the corrected results are given. The charge collected in the LHCb VELO sensors is affected by radiation damage. One such effect, which is more pronounced in the outer regions of downstream sensors, arises from charge induction on second metal layer routing lines [2]. Prior to the start of Run 2, modifications were made to the digitization step in the LHCb simulation framework to model this effect. An error was made in the parametric implementation resulting in a reduction of the track reconstruction efficiency in simulation compared to data for tracks with low pseudorapidity. The tracking efficiency calibration procedure that was applied in this paper to the data and simulation [3] was unable to correct the mismodelling. All results presented in the paper are affected and a similar pattern is seen for all four different mesons. The corrected cross-sections are generally lower with the largest difference at low rapidities and almost no change at high rapidities. The corrected inclusive cross-sections for the four mesons, including charge conjugation, within the range of (Formula presented.) (Figure presented.).

Original languageEnglish (US)
Article number74
JournalJournal of High Energy Physics
Volume2017
Issue number5
DOIs
StatePublished - May 1 2017

Fingerprint

physics
collisions
cross sections
mesons
simulation
sensors
conjugation
radiation damage
energy
induction
metals

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

Cite this

@article{c9349a153a304bc6a5550d7fe052175b,
title = "Erratum to: Measurements of prompt charm production cross-sections in pp collisions at s = 13 √ s = TeV (Journal of High Energy Physics, (2016), 2016, 3, (159), 10.1007/JHEP03(2016)159)",
abstract = "An issue has been identified in the simulated samples used to calculate the efficiencies, which affects the published cross-section measurements from pp collisions at √ s = 13TeV [1]. What follows is a brief description of the nature of the problems, before the corrected results are given. The charge collected in the LHCb VELO sensors is affected by radiation damage. One such effect, which is more pronounced in the outer regions of downstream sensors, arises from charge induction on second metal layer routing lines [2]. Prior to the start of Run 2, modifications were made to the digitization step in the LHCb simulation framework to model this effect. An error was made in the parametric implementation resulting in a reduction of the track reconstruction efficiency in simulation compared to data for tracks with low pseudorapidity. The tracking efficiency calibration procedure that was applied in this paper to the data and simulation [3] was unable to correct the mismodelling. All results presented in the paper are affected and a similar pattern is seen for all four different mesons. The corrected cross-sections are generally lower with the largest difference at low rapidities and almost no change at high rapidities. The corrected inclusive cross-sections for the four mesons, including charge conjugation, within the range of (Formula presented.) (Figure presented.).",
author = "{The Lhcb Collaboration} and R. Aaij and Beteta, {C. Abell{\'a}n} 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 Cartelle, {P. Alvarez} and Alves, {A. A.} and S. Amato and S. Amerio and Y. Amhis and L. An and L. Anderlini and J. Anderson and G. Andreassi and M. Andreotti and Andrews, {J. E.} and Appleby, {R. B.} and Gutierrez, {O. Aquines} 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 Blusk, {Steven Roy} and Tomasz Skwarnicki and Sheldon Stone",
year = "2017",
month = "5",
day = "1",
doi = "10.1007/JHEP05(2017)074",
language = "English (US)",
volume = "2017",
journal = "Journal of High Energy Physics",
issn = "1126-6708",
publisher = "Springer Verlag",
number = "5",

}

TY - JOUR

T1 - Erratum to

T2 - Measurements of prompt charm production cross-sections in pp collisions at s = 13 √ s = TeV (Journal of High Energy Physics, (2016), 2016, 3, (159), 10.1007/JHEP03(2016)159)

AU - The Lhcb Collaboration

AU - Aaij, R.

AU - Beteta, C. Abellán

AU - Adeva, B.

AU - Adinolfi, M.

AU - Affolder, A.

AU - Ajaltouni, Z.

AU - Akar, S.

AU - Albrecht, J.

AU - Alessio, F.

AU - Alexander, M.

AU - Ali, S.

AU - Alkhazov, G.

AU - Cartelle, P. Alvarez

AU - Alves, A. A.

AU - Amato, S.

AU - Amerio, S.

AU - Amhis, Y.

AU - An, L.

AU - Anderlini, L.

AU - Anderson, J.

AU - Andreassi, G.

AU - Andreotti, M.

AU - Andrews, J. E.

AU - Appleby, R. B.

AU - Gutierrez, O. Aquines

AU - Archilli, F.

AU - d’Argent, P.

AU - Artamonov, A.

AU - Artuso, Marina

AU - Aslanides, E.

AU - Auriemma, G.

AU - Baalouch, M.

AU - Bachmann, S.

AU - Back, J. J.

AU - Badalov, A.

AU - Baesso, C.

AU - Baldini, W.

AU - Barlow, R. J.

AU - Barschel, C.

AU - Barsuk, S.

AU - Barter, W.

AU - Batozskaya, V.

AU - Battista, V.

AU - Bay, A.

AU - Beaucourt, L.

AU - Beddow, J.

AU - Bedeschi, F.

AU - Blusk, Steven Roy

AU - Skwarnicki, Tomasz

AU - Stone, Sheldon

PY - 2017/5/1

Y1 - 2017/5/1

N2 - An issue has been identified in the simulated samples used to calculate the efficiencies, which affects the published cross-section measurements from pp collisions at √ s = 13TeV [1]. What follows is a brief description of the nature of the problems, before the corrected results are given. The charge collected in the LHCb VELO sensors is affected by radiation damage. One such effect, which is more pronounced in the outer regions of downstream sensors, arises from charge induction on second metal layer routing lines [2]. Prior to the start of Run 2, modifications were made to the digitization step in the LHCb simulation framework to model this effect. An error was made in the parametric implementation resulting in a reduction of the track reconstruction efficiency in simulation compared to data for tracks with low pseudorapidity. The tracking efficiency calibration procedure that was applied in this paper to the data and simulation [3] was unable to correct the mismodelling. All results presented in the paper are affected and a similar pattern is seen for all four different mesons. The corrected cross-sections are generally lower with the largest difference at low rapidities and almost no change at high rapidities. The corrected inclusive cross-sections for the four mesons, including charge conjugation, within the range of (Formula presented.) (Figure presented.).

AB - An issue has been identified in the simulated samples used to calculate the efficiencies, which affects the published cross-section measurements from pp collisions at √ s = 13TeV [1]. What follows is a brief description of the nature of the problems, before the corrected results are given. The charge collected in the LHCb VELO sensors is affected by radiation damage. One such effect, which is more pronounced in the outer regions of downstream sensors, arises from charge induction on second metal layer routing lines [2]. Prior to the start of Run 2, modifications were made to the digitization step in the LHCb simulation framework to model this effect. An error was made in the parametric implementation resulting in a reduction of the track reconstruction efficiency in simulation compared to data for tracks with low pseudorapidity. The tracking efficiency calibration procedure that was applied in this paper to the data and simulation [3] was unable to correct the mismodelling. All results presented in the paper are affected and a similar pattern is seen for all four different mesons. The corrected cross-sections are generally lower with the largest difference at low rapidities and almost no change at high rapidities. The corrected inclusive cross-sections for the four mesons, including charge conjugation, within the range of (Formula presented.) (Figure presented.).

UR - http://www.scopus.com/inward/record.url?scp=85019855159&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85019855159&partnerID=8YFLogxK

U2 - 10.1007/JHEP05(2017)074

DO - 10.1007/JHEP05(2017)074

M3 - Comment/debate

VL - 2017

JO - Journal of High Energy Physics

JF - Journal of High Energy Physics

SN - 1126-6708

IS - 5

M1 - 74

ER -