First Observation of the DecayB0→D*+D*−

M Artuso,Z Xu,H Kagan,I Kravchenko,S Chan,C M Korte,S J Lee,S Glenn,G D Gollin,H Schwarthoff,A I Rubiera,S Roberts,R J Morrison,N Katayama,H Marsiske,H P Paar,I C Lai,R Godang,P S Drell,P Skubic,S B Athar,V Boisvert,R Ehrlich,G J Zhou,Z Ling,J W Hinson,S J Richichi,R Greene,H N Nelson,L P Perera,G Eigen,T E Browder,S Timm,M Athanas,R Poling,A Shapiro,S Schrenk,Y Kwon,W T Ford,B K Heltsley,E Nordberg,S W Gray,T S Hill,T Bergfeld,E Johnson,C Gwon,I Karliner,E I Shibata,T Hart,H Tajima,R M Hans,M Bishai,C D Jones,N Kwak,N B Mistry,S E Csorna,K W Edwards,D Peterson,I Narsky,M M Zoeller,S Anderson,S Prell,R Stroynowski,D Coppage,A Wolf,N Menon,I Korolkov,M Ogg,A Eppich,R Ammar,G Bonvicini,J G Smith,T Lee,J L Rodriguez,P Pomianowski,K K Gan,H Krieg,A D Foland,G Masek,D Ugolini,D L Hartill,B Valant-Spaight,D M Asner,S Von Dombrowski,E H Thorndike,R Mountain,J Lee,H Yamamoto,C R Ng,D Cinabro,K Honscheid,B Gittelman,A Anastassov,T Riehle,M Selen,Y Kubota,B I Eisenstein,S Schuh,J Ye,R Janicek,S Chen,M Dickson,L Gibbons,J E Duboscq,P Avery,K Kinoshita,G C Moneti,M A Marsh,J Yelton,V Sharma,M S Alam,A H Mahmood,P Baringer,P Gaidarev,D S Crowcroft,D G Cassel,S Kotov,E M Potter,J Kandaswamy,D L Kreinick,G E Gladding,J Roy,R Mahapatra,Y Maravin,J C Wang,Y Li,T K Nelson,J Lorenc,C Bebek,E Dambasuren,D Riley,K Berkelman,J S Miller,J J Thaler,M Lohner,B E Berger,V Savinov,A J Sadoff,T E Coan,A Warburton,P I Hopman,P M Patel,J Urheim,K Lingel,R A Briere,V Fadeyev,J Gronberg,A L Lyon,I P J Shipsey,A Titov,F Würthwein,J Alexander ,D Lange ,J P Zheng ,G H A Viehhauser ,A Bellerive,T Skwarnicki,H Severini,D H Miller,A V Gritsan ,М Перл ,K M Ecklund,E Lipeles,A Bean,Richard Wilson ,J R Patterson,B H Behrens,M Palmer,A Undrus,S Márka ,J J O’neill ,Xiang Zhou ,L Zhou,Y Liu,A J Weinstein,C Prescott,F R Wappler ,K W Mclean,A Ershov,C P Ward ,J E Fast ,C Jessop ,Y S Gao,W Sun ,S Stone,D A Roberts ,R C Baker ,M Śchmidtler ,D E Jaffe,D Besson,R Kass,A Soffer,A J S Smith ,D Y J Kim ,S Köpp ,R Davis,J Ernst,G Brandenburg,T Włodek

doi:10.1103/physrevlett.82.3020

First Observation of the DecayB0→D+D−

M Artuso, Z Xu + Show 197 more

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https://doi.org/10.1103/physrevlett.82.3020

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Journal: Physical Review Letters	Publication Date: Apr 12, 1999
Citations: 10

#Decay Mode #Measured Decay Rate + Show 7 more

Abstract
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Abstract

We have observed four fully reconstructed B0 -> D*+D*- candidates in 5.8 million Upsilon(4S) -> BBbar decays recorded with the CLEO detector. The background is estimated to be 0.31 +- 0.10 events. The probability that the background could produce four or more signal candidates with the observed distribution among D*+ and D*- decay modes is 1.1 X 10^{-4}. The measured decay rate, Br(B0 -> D*+D*-) = [6.2 +4.0-2.9 (stat) +- 1.0(syst)] X 10^{-4}, is large enough for this decay mode to be of interest for the measurement of a time-dependent CP asymmetry.

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