Observation Of The Cabibbo-Suppressed Decay Xi(+)(C) -> Pk(-)Pi(+)

S. Jun, N. Akchurin,V. Andreev,A. Atamantchouk,M. Aykac,M. Balatz,N. Bondar,A. Bravar,P. Cooper,L. Dauwe,G. Davidenko,U. Dersch,A. Dolgolenko,D. Dreossi,G. Dzyubenko,R. Edelstein,L. Emediato,A. Endler,J. Engelfried, I. Eschrich,C. Escobar,A. Evdokimov,I. Filimonov,F. Garcia,M. Gaspero,S. Gerzon,I. Giller,V. Golovtsov,Y. Goncharenko,E. Gottschalk,P. Gouffon,O. Grachov,E. Gülmez,M. Iori, A. Kamenski, H. Kangling,M. Kaya,J. Kilmer,V. Kim,L. Kochenda,K. Königsmann,I. Konorov,A. Kozhevnikov,A. Krivshich,H. Krüger,M. Kubantsev,V. Kubarovsky,A. Kulyavtsev,N. Kuropatkin,V. Kurshetsov,A. Kushnirenko, S. Kwan,J. Lach,A. Lamberto,L. Landsberg,I. Larin,E. Leikin,M. Luksys,T. Lungov,D. Magarrel,V. Maleev,D. Mao,S. Masciocchi,P. Mathew,M. Mattson,V. Matveev, E. McCliment, S. McKenna,M. Moinester,V. Molchanov,A. Morelos,V. Mukhin,K. Nelson,A. Nemitkin,P. Neoustroev, C. Newsom,A. Nilov,S. Nurushev,A. Ocherashvili,G. Oleynik, Y. Onel,E. Ozel,S. Ozkorucuklu,S. Patrichev, A. Penzo,S. Petrenko,P. Pogodin, B. Povh,M. Procario, V. Prutskoi, E. Ramberg,G. Rappazzo,B. Razmyslovich,V. Rud,J. Russ,P. Schiavon, V. Semyatchkin,J. Simon,A. Sitnikov,D. Skow,V. Smith,M. Srivastava, V. Steiner,V. Stepanov,L. Stutte,M. Svoiski,N. Terentyev,G. Thomas,L. Uvarov,A. Vasiliev,D. Vavilov,V. Verebryusov,V. Victorov,V. Vishnyakov,A. Vorobyov,K. Vorwalter,Z. Wenheng,J. You,L. Yunshan,M. Zhenlin,L. Zhigang,R. Zukanovich Funchal

PHYSICAL REVIEW LETTERS（2000）

引用 38|浏览60

暂无评分

摘要

We report the first observation of the Cabibbo-suppressed charm baryon decay Xi(c)(+) --> pK(-)pi(+) We observe 150 +/- 22 +/- 5 events for the signal. The data were accumulated using the SELEX spectrometer during the 1996-1997 fixed target run at Fermilab, chiefly from a 600 GeV/c Sigma(-) beam. The branching fractions of the decay relative to the Cabibbo-favored Xi(c)(+) --> Sigma(+)K(-)pi(+) and Xi(c)(+) --> Xi(-)pi(+)pi(+) are measured to be B(Xi(c)(+) --> pK(-)pi(+))/B(Xi(c)(+) --> Sigma(+)K(-)pi(+)) = 0.22 +/- 0.06 +/- 0.03 and B(Xi(c)(+) --> pK(-)pi(+))/B(Xi(c)(+) --> Xi(-)pi(+)pi(+)) = 0.20 +/- 0.04 +/- 0.02, respectively.

查看译文

AI 理解论文

溯源树

样例

生成溯源树，研究论文发展脉络

Chat Paper

正在生成论文摘要