Abstract
This article describes improved measurements by CLEO of the B0→Ds+D*- and B0→Ds*+D*- branching fractions, and first evidence for the decay B+→Ds(*)+D̄** 0, where D̄**0 represents the sum of the D̄1(2420)0, D̄2*(2460)0, and D̄1(j = 1/2)0 L = 1 charm meson states. Also reported is the first measurement of the Ds*+ polarization in the decay B0→Ds*+D*-. A partial reconstruction technique, employing only the fully reconstructed Ds+ and slow pion πs- from the D*-→D̄0πs- decay, enhances sensitivity. The observed branching fractions are B(B0→Ds+D*-) = (1.10±0.18±0.10±0.28)%, B(B0→Ds*+D*-) = (1.82±0.37±0.24 ±0.46)% , and B(B+→Ds(*) +D̄**0) = (2.73±0.78±0.48±0.68)%, where the first error is statistical, the second systematic, and the third is the uncertainty in the Ds+→φπ+ branching fraction. The measured Ds*+ longitudinal polarization, ΓL/Γ = (50.6±13.9±3.6)%, is consistent with the factorization prediction of 54%.
| Original language | English (US) |
|---|---|
| Article number | 112003 |
| Pages (from-to) | 1-13 |
| Number of pages | 13 |
| Journal | Physical Review D - Particles, Fields, Gravitation and Cosmology |
| Volume | 62 |
| Issue number | 11 |
| State | Published - Dec 1 2000 |
ASJC Scopus subject areas
- Physics and Astronomy (miscellaneous)
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Measurement of B→Ds(*)+D*(*) branching fractions. / Ahmed, S.; Alam, M. S.; Athar, S. B.; Jian, L.; Ling, L.; Saleem, M.; Timm, S.; Wappler, F.; Anastassov, A.; Duboscq, J. E.; Eckhart, E.; Gan, K. K.; Gwon, C.; Hart, T.; Honscheid, K.; Hufnagel, D.; Kagan, H.; Kass, R.; Pedlar, T. K.; Schwarthoff, H.; Thayer, J. B.; Von Toerne, E.; Zoeller, M. M.; Richichi, S. J.; Severini, H.; Skubic, P.; Undrus, A.; Chen, S.; Fast, J.; Hinson, J. W.; Lee, J.; Miller, D. H.; Shibata, E. I.; Shipsey, I. P.J.; Pavlunin, V.; Cronin-Hennessy, D.; Lyon, A. L.; Thorndike, E. H.; Jessop, C. P.; Marsiske, H.; Perl, M. L.; Savinov, V.; Zhou, X.; Coan, T. E.; Fadeyev, V.; Maravin, Y.; Narsky, I.; Stroynowski, R.; Ye, J.; Wlodek, T.; Artuso, M.; Ayad, R.; Boulahouache, C.; Bukin, K.; Dambasuren, E.; Karamov, S.; Majumder, G.; Moneti, G. C.; Mountain, R.; Schuh, S.; Skwarnicki, T.; Stone, S.; Viehhauser, G.; Wang, J. C.; Wolf, A.; Wu, J.; Kopp, S.; Mahmood, A. H.; Csorna, S. E.; Danko, I.; McLean, K. W.; Márka, Sz; Xu, Z.; Godang, R.; Kinoshita, K.; Lai, I. C.; Schrenk, S.; Bonvicini, G.; Cinabro, D.; McGee, S.; Perera, L. P.; Zhou, G. J.; Lipeles, E.; Pappas, S. P.; Schmidtler, M.; Shapiro, A.; Sun, W. M.; Weinstein, A. J.; Würthwein, F.; Jaffe, D. E.; Masek, G.; Paar, H. P.; Potter, E. M.; Prell, S.; Sharma, V.; Asner, D. M.; Eppich, A.; Hill, T. S.; Morrison, R. J.; Nelson, H. N.; Richman, J. D.; Witherell, M. S.; Briere, R. A.; Chen, G. P.; Behrens, B. H.; Ford, W. T.; Gritsan, A.; Roy, J.; Smith, J. G.; Alexander, J. P.; Baker, R.; Bebek, C.; Berger, B. E.; Berkelman, K.; Blanc, F.; Boisvert, V.; Cassel, D. G.; Dickson, M.; Drell, P. S.; Ecklund, K. M.; Ehrlich, R.; Foland, A. D.; Gaidarev, P.; Gibbons, L.; Gittelman, B.; Gray, S. W.; Hartill, D. L.; Heltsley, B. K.; Hopman, P. I.; Jones, C. D.; Kreinick, D. L.; Lohner, M.; Magerkurth, A.; Meyer, T. O.; Mistry, N. B.; Nordberg, E.; Patterson, J. R.; Peterson, D.; Riley, D.; Thayer, J. G.; Urner, D.; Valant-Spaight, B.; Warburton, A.; Avery, P.; Prescott, C.; Rubiera, A. I.; Yelton, J.; Zheng, J.; Brandenburg, G.; Ershov, A.; Gao, Y. S.; Kim, D. Y.J.; Wilson, R.; Browder, T. E.; Li, Y.; Rodriguez, J. L.; Yamamoto, H.; Bergfeld, T.; Eisenstein, B. I.; Ernst, J.; Gladding, G. E.; Gollin, G. D.; Hans, R. M.; Johnson, E.; Karliner, I.; Marsh, M. A.; Palmer, M.; Plager, C.; Sedlack, C.; Selen, M.; Thaler, J. J.; Williams, J.; Edwards, K. W.; Janicek, R.; Patel, P. M.; Sadoff, A. J.; Ammar, R.; Bean, A.; Besson, D.; Davis, R.; Kwak, N.; Zhao, X.; Anderson, S.; Frolov, V. V.; Kubota, Y.; Lee, S. J.; Mahapatra, R.; O'Neill, J. J.; Poling, R.; Riehle, T.; Smith, A.; Stepaniak, C. J.; Urheim, J.
In: Physical Review D - Particles, Fields, Gravitation and Cosmology, Vol. 62, No. 11, 112003, 01.12.2000, p. 1-13.Research output: Contribution to journal › Article › peer-review
}
TY - JOUR
T1 - Measurement of B→Ds(*)+D*(*) branching fractions
AU - Ahmed, S.
AU - Alam, M. S.
AU - Athar, S. B.
AU - Jian, L.
AU - Ling, L.
AU - Saleem, M.
AU - Timm, S.
AU - Wappler, F.
AU - Anastassov, A.
AU - Duboscq, J. E.
AU - Eckhart, E.
AU - Gan, K. K.
AU - Gwon, C.
AU - Hart, T.
AU - Honscheid, K.
AU - Hufnagel, D.
AU - Kagan, H.
AU - Kass, R.
AU - Pedlar, T. K.
AU - Schwarthoff, H.
AU - Thayer, J. B.
AU - Von Toerne, E.
AU - Zoeller, M. M.
AU - Richichi, S. J.
AU - Severini, H.
AU - Skubic, P.
AU - Undrus, A.
AU - Chen, S.
AU - Fast, J.
AU - Hinson, J. W.
AU - Lee, J.
AU - Miller, D. H.
AU - Shibata, E. I.
AU - Shipsey, I. P.J.
AU - Pavlunin, V.
AU - Cronin-Hennessy, D.
AU - Lyon, A. L.
AU - Thorndike, E. H.
AU - Jessop, C. P.
AU - Marsiske, H.
AU - Perl, M. L.
AU - Savinov, V.
AU - Zhou, X.
AU - Coan, T. E.
AU - Fadeyev, V.
AU - Maravin, Y.
AU - Narsky, I.
AU - Stroynowski, R.
AU - Ye, J.
AU - Wlodek, T.
AU - Artuso, M.
AU - Ayad, R.
AU - Boulahouache, C.
AU - Bukin, K.
AU - Dambasuren, E.
AU - Karamov, S.
AU - Majumder, G.
AU - Moneti, G. C.
AU - Mountain, R.
AU - Schuh, S.
AU - Skwarnicki, T.
AU - Stone, S.
AU - Viehhauser, G.
AU - Wang, J. C.
AU - Wolf, A.
AU - Wu, J.
AU - Kopp, S.
AU - Mahmood, A. H.
AU - Csorna, S. E.
AU - Danko, I.
AU - McLean, K. W.
AU - Márka, Sz
AU - Xu, Z.
AU - Godang, R.
AU - Kinoshita, K.
AU - Lai, I. C.
AU - Schrenk, S.
AU - Bonvicini, G.
AU - Cinabro, D.
AU - McGee, S.
AU - Perera, L. P.
AU - Zhou, G. J.
AU - Lipeles, E.
AU - Pappas, S. P.
AU - Schmidtler, M.
AU - Shapiro, A.
AU - Sun, W. M.
AU - Weinstein, A. J.
AU - Würthwein, F.
AU - Jaffe, D. E.
AU - Masek, G.
AU - Paar, H. P.
AU - Potter, E. M.
AU - Prell, S.
AU - Sharma, V.
AU - Asner, D. M.
AU - Eppich, A.
AU - Hill, T. S.
AU - Morrison, R. J.
AU - Nelson, H. N.
AU - Richman, J. D.
AU - Witherell, M. S.
AU - Briere, R. A.
AU - Chen, G. P.
AU - Behrens, B. H.
AU - Ford, W. T.
AU - Gritsan, A.
AU - Roy, J.
AU - Smith, J. G.
AU - Alexander, J. P.
AU - Baker, R.
AU - Bebek, C.
AU - Berger, B. E.
AU - Berkelman, K.
AU - Blanc, F.
AU - Boisvert, V.
AU - Cassel, D. G.
AU - Dickson, M.
AU - Drell, P. S.
AU - Ecklund, K. M.
AU - Ehrlich, R.
AU - Foland, A. D.
AU - Gaidarev, P.
AU - Gibbons, L.
AU - Gittelman, B.
AU - Gray, S. W.
AU - Hartill, D. L.
AU - Heltsley, B. K.
AU - Hopman, P. I.
AU - Jones, C. D.
AU - Kreinick, D. L.
AU - Lohner, M.
AU - Magerkurth, A.
AU - Meyer, T. O.
AU - Mistry, N. B.
AU - Nordberg, E.
AU - Patterson, J. R.
AU - Peterson, D.
AU - Riley, D.
AU - Thayer, J. G.
AU - Urner, D.
AU - Valant-Spaight, B.
AU - Warburton, A.
AU - Avery, P.
AU - Prescott, C.
AU - Rubiera, A. I.
AU - Yelton, J.
AU - Zheng, J.
AU - Brandenburg, G.
AU - Ershov, A.
AU - Gao, Y. S.
AU - Kim, D. Y.J.
AU - Wilson, R.
AU - Browder, T. E.
AU - Li, Y.
AU - Rodriguez, J. L.
AU - Yamamoto, H.
AU - Bergfeld, T.
AU - Eisenstein, B. I.
AU - Ernst, J.
AU - Gladding, G. E.
AU - Gollin, G. D.
AU - Hans, R. M.
AU - Johnson, E.
AU - Karliner, I.
AU - Marsh, M. A.
AU - Palmer, M.
AU - Plager, C.
AU - Sedlack, C.
AU - Selen, M.
AU - Thaler, J. J.
AU - Williams, J.
AU - Edwards, K. W.
AU - Janicek, R.
AU - Patel, P. M.
AU - Sadoff, A. J.
AU - Ammar, R.
AU - Bean, A.
AU - Besson, D.
AU - Davis, R.
AU - Kwak, N.
AU - Zhao, X.
AU - Anderson, S.
AU - Frolov, V. V.
AU - Kubota, Y.
AU - Lee, S. J.
AU - Mahapatra, R.
AU - O'Neill, J. J.
AU - Poling, R.
AU - Riehle, T.
AU - Smith, A.
AU - Stepaniak, C. J.
AU - Urheim, J.
N1 - Copyright: Copyright 2007 Elsevier B.V., All rights reserved.
PY - 2000/12/1
Y1 - 2000/12/1
N2 - This article describes improved measurements by CLEO of the B0→Ds+D*- and B0→Ds*+D*- branching fractions, and first evidence for the decay B+→Ds(*)+D̄** 0, where D̄**0 represents the sum of the D̄1(2420)0, D̄2*(2460)0, and D̄1(j = 1/2)0 L = 1 charm meson states. Also reported is the first measurement of the Ds*+ polarization in the decay B0→Ds*+D*-. A partial reconstruction technique, employing only the fully reconstructed Ds+ and slow pion πs- from the D*-→D̄0πs- decay, enhances sensitivity. The observed branching fractions are B(B0→Ds+D*-) = (1.10±0.18±0.10±0.28)%, B(B0→Ds*+D*-) = (1.82±0.37±0.24 ±0.46)% , and B(B+→Ds(*) +D̄**0) = (2.73±0.78±0.48±0.68)%, where the first error is statistical, the second systematic, and the third is the uncertainty in the Ds+→φπ+ branching fraction. The measured Ds*+ longitudinal polarization, ΓL/Γ = (50.6±13.9±3.6)%, is consistent with the factorization prediction of 54%.
AB - This article describes improved measurements by CLEO of the B0→Ds+D*- and B0→Ds*+D*- branching fractions, and first evidence for the decay B+→Ds(*)+D̄** 0, where D̄**0 represents the sum of the D̄1(2420)0, D̄2*(2460)0, and D̄1(j = 1/2)0 L = 1 charm meson states. Also reported is the first measurement of the Ds*+ polarization in the decay B0→Ds*+D*-. A partial reconstruction technique, employing only the fully reconstructed Ds+ and slow pion πs- from the D*-→D̄0πs- decay, enhances sensitivity. The observed branching fractions are B(B0→Ds+D*-) = (1.10±0.18±0.10±0.28)%, B(B0→Ds*+D*-) = (1.82±0.37±0.24 ±0.46)% , and B(B+→Ds(*) +D̄**0) = (2.73±0.78±0.48±0.68)%, where the first error is statistical, the second systematic, and the third is the uncertainty in the Ds+→φπ+ branching fraction. The measured Ds*+ longitudinal polarization, ΓL/Γ = (50.6±13.9±3.6)%, is consistent with the factorization prediction of 54%.
UR - http://www.scopus.com/inward/record.url?scp=16644369190&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=16644369190&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:16644369190
VL - 62
SP - 1
EP - 13
JO - Physical review D: Particles and fields
JF - Physical review D: Particles and fields
SN - 1550-7998
IS - 11
M1 - 112003
ER -