Measurement of B ->(Ds(*)+D*(*)) branching fractions - art. no. 112003

Authors
Ahmed, S Alam, MS Athar, SB Jian, L Ling, L Saleem, M Timm, S Wappler, F Anastassov, A Duboscq, JE Eckhart, E Gan, KK Gwon, C Hart, T Honscheid, K Hufnagel, D Kagan, H Kass, R Pedlar, TK Schwarthoff, H Thayer, JB von Toerne, E Zoeller, MM Richichi, SJ Severini, H Skubic, P Undrus, A Chen, S Fast, J Hinson, JW Lee, J Miller, DH Shibata, EI Shipsey, IPJ Pavlunin, V Cronin-Hennessy, D Lyon, AL Thorndike, EH Jessop, CP Marsiske, H Perl, ML Savinov, V Zhou, X Coan, TE 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, GC Mountain, R Schuh, S Skwarnicki, T Stone, S Viehhauser, G Wang, JC Wolf, A Wu, J Kopp, S Mahmood, AH Csorna, SE Danko, I McLean, KW Marka, S Xu, Z Godang, R Kinoshita, K Lai, IC Schrenk, S Bonvicini, G Cinabro, D McGee, S Perera, LP Zhou, GJ Lipeles, E Pappas, SP Schmidtler, M Shapiro, A Sun, WM Weinstein, AJ Wurthwein, F Jaffe, DE Masek, G Paar, HP Potter, EM Prell, S Sharma, V Asner, DM Eppich, A Hill, TS Morrison, RJ Nelson, HN Richman, JD Witherell, MS Briere, RA Chen, GP Behrens, BH Ford, WT Gritsan, A Roy, J Smith, JG Alexander, JP Baker, R Bebek, C Berger, BE Berkelman, K Blanc, F Boisvert, V Cassel, DG Dickson, H Drell, PS Ecklund, KM Ehrlich, R Foland, AD Gaidarev, P Gibbons, L Gittelman, B Gray, SW Hartill, DL Heltsley, BK Hopman, PI Jones, CD Kreinick, DL Lohner, M Magerkurth, A Meyer, TO Mistry, NB Nordberg, E Patterson, JR Peterson, D Riley, D Thayer, JG Urner, D Valant-Spaight, B Warburton, A Avery, P Prescott, C Rubiera, AI Yelton, J Zheng, J Brandenburg, G Ershov, A Gao, YS Kim, DYJ Wilson, R Browder, TE Li, Y Rodriguez, JL Yamamoto, H Bergfeld, T Eisenstein, BI Ernst, J Gladding, GE Gollin, GD Hans, RM Johnson, E Karliner, I Marsh, MA Palmer, M Plager, C Sedlack, C Selen, M Thaler, JJ Williams, J Edwards, KW Janicek, R Patel, PM Sadoff, AJ Ammar, R Bean, A Besson, D Davis, R Kwak, N Zhao, X Anderson, S Frolov, VV Kubota, Y Lee, SJ Mahapatra, R O'Neill, JJ Poling, R Riehle, T Smith, A Stepaniak, CJ Urheim, J
Citation
S. Ahmed et al., Measurement of B ->(Ds(*)+D*(*)) branching fractions - art. no. 112003, PHYS REV D, 6211(11), 2000, pp. 2003
Citations number
24
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Physics
Journal title
PHYSICAL REVIEW D
ISSN journal
0556-2821 → ACNP
Volume
6211
Issue
11
Year of publication
2000
Database
ISI
SICI code
0556-2821(200012)6211:11<2003:MOB-BF>2.0.ZU;2-M
Abstract
This article describes improved measurements by CLEO of the B-0-->D-s(+) D* (-) and B-0-->D-s(*+) D*(-) branching fractions, and first evidence for the decay B+-->D-s(()*()+) (D) over bar**(0), where (D) over bar**(0) represen ts the sum of the (D) over bar (1)(2420)(0), (D) over bar (2)*(2460)(0), an d (D) over bar (1)(j = 1/2)(0) L = 1 charm meson states. Also reported is t he first measurement of the D-s*(+) polarization in the decay B-0-->D-s*D+* (-). A partial reconstruction technique, employing only the fully reconstru cted D-s(+) and slow pion pi (-)(s) from the D*(-)-->(D) over bar (0)pi (-) (s) decay, enhances sensitivity, The observed branching fractions are B(B-0 -->Ds+D*(-)) = (1.10+/-0.18+/-0.10+/-0.28)%, B(B-0-->D-s*(+) D*(-)) =(1.82/-0.37+/-0.24 +/-0.46)%, and B(B+-D-s(()*()+)(D) over bar**(0)) = (2.73+/-0 .78+/-0.48+/-0.68)%, where the first error is statistical, the second syste matic, and the third is the uncertainty in the D-s(+)-->phi pi (+) branchin g fraction. The measured D-s*(+) longitudinal polarization, Gamma (L)/Gamma = (50.6+/-13.9+/-3.6)%, is consistent with the factorization prediction of 54%.