First observation ofB¯→D(*)ρ′−,ρ′−→ωπ−

J Alexander ,H Stoeck,C Plager,A I Rubiera,N B Mistry,V Boisvert,D Riley,G E Gladding,K Benslama,A J Sadoff,J Kandaswamy,S B Athar,S P Pappas,I Karliner,H P Paar,C Bebek,E H Thorndike,E Von Toerne,R A Briere,M Lohner,G Masek,C Boulahouache,D Peterson,M Kostin,H Kagan,A Eppich,T Bergfeld,J B Thayer,J E Duboscq,R M Hans,E I Shibata,K Bukin,D G Cassel,G D Gollin,A H Mahmood,C Gwon,S J Richichi,C J Stepaniak,S E Csorna,H Schwarthoff,B Valant-Spaight,D Urner,D Cinabro,M M Zoeller,E Johnson,T S Hill,R Mountain,T Hart,L Hsu,V Pavlunin,I Narsky,B K Heltsley,K Honscheid,E Dambasuren,V Savinov,B E Berger,V V Frolov,S W Gray,A L Lyon,T E Coan,B I Eisenstein,T K Pedlar,R J Morrison,J J Thaler,M A Marsh,B Gittelman,J W Hinson,R Ehrlich,G Bonvicini,D Hufnagel,J Urheim,D L Hartill,C Sedlack,G J Zhou,A Anastassov,P S Drell,S Ahmed,R Ammar,R Mahapatra,K K Gan,P Gaidarev,A Magerkurth,P Skubic,A Bornheim,D M Asner,K W Edwards,V Fadeyev,R Godang,D L Kreinick,E Nordberg,M Dubrovin,R Poling,M S Alam,D Cronin-Hennessy,F Blanc,L K Gibbons ,G H A Viehhauser ,Z Xu ,Y Maravin ,I Dankó ,J Lee ,I P J Shipsey ,S Timm ,J R Patterson ,X Zhao ,K M Ecklund ,A Undrus ,H Severini ,Y Kubota ,D H Miller ,S Stone ,A Shapiro ,S J Lee ,A J Weinstein ,J Yelton ,T Skwarnicki ,C D Jones ,S Köpp ,Y S Gao ,A Warburton ,A Romano ,D E Jaffe ,G Majumder ,T Włodek ,K Berkelman ,G Brandenburg ,A Bean ,M Palmer ,M Selen ,T Ferguson ,D Y J Kim ,E Eckhart ,Richard Wilson ,Steven Mcgee ,J G Thayer ,E Lipeles ,A Wolf ,James S Williams ,G P Chen ,A Smith ,J Ye ,M Saleem ,S Anderson ,L Jian ,D Besson ,R Stroynowski ,K W Mclean ,S Chen ,T O Meyer ,W Sun ,C Prescott ,P Avery ,J Ernst ,A Ershov ,M Artuso ,Ling Liu ,J C Wang ,R Kass ,F R Wappler ,H Vogel

doi:10.1103/physrevd.64.092001

First observation ofB¯→D(*)ρ′−,ρ′−→ωπ−

J Alexander , H Stoeck + Show 158 more

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https://doi.org/10.1103/physrevd.64.092001

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#Omega Pi #Width Of MeV + Show 6 more

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Abstract

We report on the observation of B-> D(*) pi+ pi- pi- pi^o decays. The branching ratios for D*+ and D*o are (1.72+/-0.14+/-0.24)% and (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*o modes, respectively. We also observe B -> D omega pi- decays. The branching ratios for D+ and Do are (0.28+/-0.05+/-0.04)% and (0.41+/-0.07+/-0.06)%, respectively. A spin parity analysis of the D omega pi- final state prefers a wide 1^- resonance. A fit to the omega pi- mass spectrum finds a central mass of (1349+/-25^{+10}_{-5}) MeV and width of (547+/-86^{+46}_{-45}) MeV. We identify this object as the rho(1450) or the \rho'.

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