First observation of (B)over-bar -> D-(*)rho '(-), rho '(-)->omega pi(-) -art. no. 092001

Authors
Alexander, JP Bebek, C Berger, BE Berkelman, K Blanc, F Boisvert, V Cassel, DG Drell, PS Duboseq, JE Ecklund, KM Ehrlich, R Gaidarev, P Gibbons, L Gittelman, B Gray, SW Hartill, DL Heltsley, BK Hsu, L Jones, CD Kandaswamy, J Kreinick, DL Lohner, M Magerkurth, A Meyer, TO Mistry, NB Nordberg, E Palmer, M Patterson, JR Peterson, D Riley, D Romano, A Schwarthoff, H Thayer, JG Urner, D Valant-Spaight, B Viehhauser, G Warburton, A Avery, P Prescott, C Rubiera, AI Stoeck, H Yelton, J Brandenburg, G Ershov, A Kim, DYJ Wilson, R Bergfeld, T Eisenstein, BI Ernst, J Gladding, GE Gollin, GD Hans, RM Johnson, E Karliner, I Marsh, MA Plager, C Sedlack, C Selen, M Thaler, JJ Williams, J Edwards, KW Sadoff, AJ Ammar, R Bean, A Besson, D Zhao, X Anderson, S Frolov, VV Kubota, Y Lee, SJ Poling, R Smith, A Stepaniak, CJ Urheim, J Ahmed, S Alam, MS Athar, SB Jian, L Ling, L Saleem, M Timm, S Wappler, F Anastassov, A Eckhart, E Gan, KK Gwon, C Hart, T Honscheid, K Hufnagel, D Kagan, H Kass, R Pedlar, TK Thayer, JB von Toerne, E Zoeller, MM Richichi, SJ Severini, H Skubic, P Undrus, A Savinov, V Chen, S Hinson, JW Lee, J Miller, DH Shibata, EI Shipsey, IPJ Pavlunin, V Cronin-Hennessy, D Lyon, AL Thorndike, EH Coan, TE Fadeyev, V Gao, YS Maravin, Y Narsky, I Stroynowski, R Ye, J Wlodek, T Artuso, M Benslama, K Boulahouache, C Bukin, K Dambasuren, E Majumder, G Mountain, R Skwarnicki, T Stone, S Wang, JC Wolf, A Kopp, S Kostin, M Mahmood, AH Csorna, SE Danko, I McLean, KW Xu, Z Godang, R Bonvicini, G Cinabro, D Dubrovin, M McGee, S Zhou, GJ Bornheim, A Lipeles, E Pappas, SP Shapiro, A Sun, WM Weinstein, AJ Jaffe, DE Mahapatra, R Masek, G Paar, HP Asner, DM Eppich, A Hill, TS Morrison, RJ Briere, RA Chen, GP Ferguson, T Vogel, H
Citation
Jp. Alexander et al., First observation of (B)over-bar -> D-(*)rho '(-), rho '(-)->omega pi(-) -art. no. 092001, PHYS REV D, 6409(9), 2001, pp. 2001
Citations number
36
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Physics
Journal title
PHYSICAL REVIEW D
ISSN journal
0556-2821 → ACNP
Volume
6409
Issue
9
Year of publication
2001
Database
ISI
SICI code
0556-2821(20011101)6409:9<2001:FOO(-D>2.0.ZU;2-S
Abstract
We report on the observation of (B) over bar -->D*pi (-) pi (-) pi (0) deca ys. The branching ratios for D*(+) and D*(0) are (1.72 +/-0.14 +/-0.24)% an d (1.80 +/-0.24 +/-0.27)%. respectively. Each final state has a D*omega pi (-) component, with branching ratios (0.29 +/-0.03 +/-0.04)% and (0.45 +/-0 .10 +/-0.07)% for the D*(+) and D*(0) modes, respectively. We also observe (B) over bar -->D omega pi (-) decays. The branching ratios for D+ and D-0 are (0.28 +/-0.05 +/-0.04)% and (0.41 +/-0.07 +/-0.06)%, respectively. A sp in parity analysis of the omega tau (-) system in the D omega tau (-) final state shows a preference for a wide l- resonance. A fit to the omega pi (- ) mass spectrum finds a central mass of (1349 +/- 25(-5)(+10)) MeV and widt h of (547 +/- 86(-45)(+46)) MeV. We identify this object as the rho (1450) or the rho'.