Observation Of The Cabibbo-suppressed Decay ξc+ π K- π+

S. Y. Jun, N. Akchurin,V. Andreev, A.G. Atamantchouk,M. Aykac, M.Y. Balatz, Nikolay Bondar, A. Bravar,P. S. Cooper, L. J. Dauwe,G.V. Davidenko, U. Dersch,A.G. Dolgolenko, D. Dreossi, G. B. Dzyubenko, R. M. Edelstein,L. Emediato, Endler A.M.F.,Jürgen Engelfried, I. Eschrich,C. O. Escobar, A. Evdokimov,I.S. Filimonov, F. G. Garcia, M. Gaspero, S. Gerzon, I. Giller, Victor Golovtsov,Yu. M. Goncharenko,Erik Gottschalk, P. Gouffon,O. A. Grachov, Erhan Gülmez, M. Iori, A.D. Kamenski,He Kangling, Mehmet Kaya, J. Kilmer,Victor Kim, L. M. Kochenda, K. Königsmann, I. Konorov,A A Kozhevnikov, A. G. Krivshich, H. Krüger,M. A. Kubantsev,V. P. Kubarovsky, A. I. Kulyavtsev, N. P. Kuropatkin, V. F. Kurshetsov, A. Kushnirenko,Simon Kwan, J. Lach, A. Lamberto,L. G. Landsberg,I. Larin, E. M. Leikin,M. Luksys, T. Lungov, D. Magarrel,Victor Maleev,D. Mao, S. Masciocchi, P. Mathew, M. E. Mattson, V. Matveev, E. McCliment,S.L. McKenna,Murray Moinester, V. V. Molchanov,A. Morelos,V. A. Mukhin, K. D. Nelson,A.V. Nemitkin, P. V. Neoustroev, C. R. Newsom, A. P. Nilov, S. B. Nurushev, A. Ocherashvili, G. Oleynik,Yasar Onel, E. Ozel,Suat Ozkorucuklu,S. Patrichev,Aldo Penzo, S. I. Petrenko, P. Pogodin,Bogdan Povh, M. Procario, V. A. Prutskoi, E. J. Ramberg, G. F. Rappazzo,B. V. Razmyslovich, V. I. Rud, James Russ,P. Schiavon, V.K. Semyatchkin, J. Simon,A. I. Sitnikov, D. Skow

Physical Review Letters（2000）

引用 9|浏览27

暂无评分

摘要

We report the first observation of the Cabihbo-suppressed charm baryon decay ξc + → pK- π+. 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 Σ- beam. The branching fractions of the decay relative to the Cabibbo-favored ξc + → Σ + K- π and ξ+ →c + →- ξ+ π+ π+ are measured to he B(ξc + → pK- π+)/B(ξc + → Σ- π+ K π+) = 0.22 ± 0.06 ± 0.03 and B(ξc + → ξ π+π+pK- π+)/B(ξc + →- π+ π+) = 0.20 ± 0.04 ± 0.02, respectively.

查看译文

关键词

null

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