First Observation of InclusiveBDecays to the Charmed Strange BaryonsΞc0andΞc+

B C Barish ,A J Sadoff,N Hancock,R Godang,H Marsiske,M Yurko,T Riehle,B Valant-Spaight,G E Gladding,M M Zoeller,M A Marsh,P Skubic,P Pomianowski,M Chadha,V Savinov,F Frasconi,A Efimov,S Glenn,E Johnson,R Poling,W S Brower,S Chan,Z Ling,S W Gray,M Lohner,F Li,G J Zhou,H Park,I C Lai,B I Eisenstein,J Gronberg,T K Nelson,D M Coffman,E H Thorndike,B Gittelman,J Kandaswamy,D Peterson,C R Ng,D J Lange,H N Nelson,B E Berger,N Menon,D M Asner,D Fujino,J G Smith,J Urheim,M Lattery,E Gerndt,K Honscheid,I Karliner,R A Briere,S Kotov,J Staeck,J Masui,J E Duboscq,P I Hopman,S Schuh,A Anastassov,G Eigen,K Kinoshita,J D Richman,B Nemati,D L Hartill,S B Athar,R Balest,J Mevissen,M Sung,K Lingel,K K Gan,D Ugolini,M Bishai,A H Mahmood,J Bartelt,J J Thaler,E I Shibata,D L Kreinick,R M Hans,H P Paar,R J Morrison,J Roy,D B Macfarlane,H A Cho,W R Ross,H Kagan,S Blinov,C Bebek,D Cinabro,N B Mistry,T E Coan,S Prell,P S Drell,D He,G C Moneti,T Hart,R Elia,C Darling,M Ogg,P Gaidarev,T Bergfeld,M Dickson,T S Hill,B K Heltsley,N Kwak,R Ammar,T E Browder,S E Csorna,M S Alam,S Roberts,R Janicek,W T Ford,R Ehrlich,J P Alexander,E Nordberg,S Menary,P Rankin,D S Crowcroft,Y Li,K W Edwards,D Riley,I Narsky,D Coppage,G Bonvicini,G Masek,G D Gollin,P M Patel,J W Hinson,S J Richichi,R Mountain,G S Ludwig,S Schrenk,M Athanas,D G Cassel,J R Patterson,X Xing,S Stone,D W Bliss,R Wang,C P Ward ,R Greene,A Bean,M Goldberg,R Davis,A Undrus,J L Rodriguez,J P Zheng ,K Berkelman,C Prescott,J J O’neill ,Y Liu,Y S Gao,F R Wappler ,K D Fisher,A Bellerive,V Sharma,M Palmer,Richard Wilson ,M B Spencer,J E Fast ,I Korolkov,S Patton,A Rýd ,C P O’grady ,C D Jones,T Skwarnicki,S Timm,М Перл ,L K Gibbons ,D Y.-J Kim,J Ernst,K Cho,M Śchmidtler ,K M Ecklund,T Lee,M Artuso,A Soffer,I Kravchenko,V Shelkov,P Baringer,Y Maravin,D H Miller,J Ye,R Stroynowski,L P Perera,K W Mclean,J S Miller,A J Weinstein,H Severini,Xiang Zhou ,M Wood,V Jain,B H Behrens,C F Qiao ,S J Lee,S Anderson,K Bloom,M S Witherell,A Smith,G H A Viehhauser ,Y J Kwon ,A Foland ,F Würthwein,P Avery,H Yamamoto,I P J Shipsey,A Wolf,J Lee,I Volobouev,G Brandenburg,P C Kim,D A Roberts ,R Kutschke,M Selen,M Gao,S Márka ,J Yelton,S Köpp ,D Besson,Y Kubota,S D Johnson,R Wanke,V Fadeyev,C P Jessop,R Kass

doi:10.1103/physrevlett.79.3599

First Observation of InclusiveBDecays to the Charmed Strange BaryonsΞc0andΞc+

B C Barish , A J Sadoff + Show 221 more

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https://doi.org/10.1103/physrevlett.79.3599

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Journal: Physical Review Letters	Publication Date: Nov 10, 1997
Citations: 9

Affiliation: California Institute of Technology, Ithaca College, University of Kansas, Virginia Tech, Stanford Synchrotron Radiation Lightsource, Stanford University, SLAC National Accelerator Laboratory, Purdue University West Lafayette, University of Minnesota, Cornell University, University of Illinois Urbana-Champaign, The Ohio State University, University of Oklahoma, Syracuse University, University of Rochester, University of California, San Diego, University at Albany, State University of New York, University of Florida, University of Hawaiʻi at Mānoa, Wayne State University, University of Colorado Boulder, University of California, Santa Barbara, Harvard University Press, Southern Methodist University, Vanderbilt University, McGill University, Institute of Particle Physics, Carleton University

#Charmed Strange Baryons #Strange Baryons

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Abstract

Using data collected in the region of the Upsilon(4S) resonance with the CLEO II detector operating at the Cornell Electron Storage Ring CESR, we present the first observation of B mesons decaying into the charmed strange baryons Xi_c0 and Xi_c+. We find 79 +/- 27 Xi_c0 and 125 +/- 28 Xi_c+ candidates from B decays, leading to product branching fractions of BR(Bbar -> Xi_c0 X)BR(Xi_c0 -> Xi- pi+) = (0.144 +/- 0.048 +/- 0.021) x 10^-3 and BR(Bbar -> Xi_c+ X)BR(Xi_c+ -> Xi- pi+ pi+) = (0.453 +/- 0.096 +0.085-0.065) x 10^-3.

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