Details

Autor(en) / Beteiligte

• 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
• 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
• Gülmez, E
• Iori, M
• Kamenski, A D
• Kangling, H
• Kaya, M
• Kilmer, J
• Kim, V T
• Kochenda, L M
• Königsmann, K
• Konorov, I
• Kozhevnikov, A A
• Krivshich, A G
• Krüger, 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

Titel

Observation of the Cabibbo-Suppressed Decay Ξ_{c}^{+} → pK^{-}π^{+}

Ist Teil von

• Physical review letters, 2000-02, Vol.84 (9), p.1857

Ort / Verlag

United States

Erscheinungsjahr

2000

Quelle

PROLA

Beschreibungen/Notizen

• We report the first observation of the Cabibbo-suppressed charm baryon decay Ξ_{c}^{+}→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 Ξ_{c}^{+}→Σ^{+}K^{-}π^{+} and Ξ_{c}^{+}→Ξ^{-}π^{+}π^{+} are measured to be B(Ξ_{c}^{+}→pK^{-}π^{+})/B(Ξ_{c}^{+}→Σ^{+}K^{-}π^{+})=0.22±0.06±0.03 and B(Ξ_{c}^{+}→pK^{-}π^{+})/B(Ξ_{c}^{+}→Ξ^{-}π^{+}π^{+})=0.20±0.04±0.02, respectively.