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Type: | Artigo de periódico |
Title: | Observation Of The Cabibbo-suppressed Decay ξc+ π K- π+ |
Author: | Jun S.Y. Akchurin N. Andreev V.A. Atamantchouk A.G. Aykac M. Balatz M.Y. Bondar N.F. Bravar A. Cooper P.S. Dauwe L.J. Davidenko G.V. Dersch U. Dolgolenko A.G. Dreossi D. Dzyubenko G.B. Edelstein R. Emediato L. Endler A.M.F. Engelfried J. Eschrich I. Escobar C.O. Evdokimov A.V. Filimonov I.S. Garcia F.G. Gaspero M. Gerzon S. Giller I. Golovtsov V.L. Goncharenko Y.M. Gottschalk E. Gouffon P. Grachov O.A. Gulmez E. Iori M. Kamenski A.D. Kangling H. Kaya M. Kilmer J. Kim V.T. Kochenda L.M. Konigsmann K. Konorov I. Kozhevnikov A.A. Krivshich A.G. Kruger H. Kubantsev M.A. Kubarovsky V.P. Kulyavtsev A.I. Kuropatkin N.P. Kurshetsov V.F. Kushnirenko A. Kwan S. Lach J. Lamberto A. Landsberg L.G. Larin I. Leikin E.M. Luksys M. Lungov T. Magarrel D. Maleev V.P. Mao D. Masciocchi S. Mathew P. Mattson M. Matveev V. McCliment E. McKenna S.L. Moinester M.A. Molchanov V.V. Morelos A. Mukhin V.A. Nelson K.D. Nemitkin A.V. Neoustroev P.V. Newsom C. Nilov A.P. Nurushev S.B. Ocherashvili A. Oleynik G. Onel Y. Ozel E. Ozkorucuklu S. Patrichev S. Penzo A. Petrenko S.I. Pogodin P. Povh B. Procario M. Prutskoi V.A. Ramberg E. Rappazzo G.F. Razmyslovich B.V. Rud V.I. Russ J. Schiavon P. Semyatchkin V.K. Simon J. Sitnikov A.I. Skow D. Smith V.J. Srivastava M. Steiner V. Stepanov V. Stutte L. Svoiski M. Terentyev N.K. Thomas G.P. Uvarov L.N. Vasiliev A.N. Vavilov D.V. Verebryusov V.S. Victorov V.A. Vishnyakov V.E. Vorobyov A.A. Vorwalter K. Wenheng Z. You J. Yunshan L. Zhenlin M. Zhigang L. Zukanovich Funchal R. |
Abstract: | 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. |
Citation: | Physical Review Letters. , v. 84, n. 9, p. 1857 - 1861, 2000. |
Rights: | aberto |
Address: | http://www.scopus.com/inward/record.url?eid=2-s2.0-0004623884&partnerID=40&md5=1459e6040de07932dd1e89a2a1e68b82 |
Date Issue: | 2000 |
Appears in Collections: | Unicamp - Artigos e Outros Documentos |
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