Observation of the Cabibbo-suppressed decay Xi(+)(c) -> pK(-)pi(+)
Date
2000Author
Molchanov, VV
Schiavon, P
Semyatchkin, VK
Simon, J
Sitnikov, AI
Skow, D
Smith, VJ
Srivastava, M
Steiner, V
Stepanov, V
Stutte, L
Svoiski, M
Terentyev, NK
Thomas, GP
Uvarov, LN
Vasiliev, AN
Vavilov, DV
Verebryusov, VS
Victorov, VA
Vishnyakov, VE
Vorobyov, AA
Vorwalter, K
Wenheng, Z
You, J
Yunshan, L
Zhenlin, M
Zhigang, L
Funchal, RZ
Ozkorucuklu, Suat
Kochenda, LM
Konigsmann, K
Konorov, I
Kozhevnikov, AA
Krivshich, AG
Kruger, H
Kubantsev, MA
Kubarovsky, VP
Kulyavtsev, AI
Kuropatkin, NP
Kurshetsov, VF
Kushnirenko, A
Kwan, S
Lach, J
Lamberto, A
Landsberg, LG
Larin, I
Leikin, EM
Luksys, M
Lungov, T
Magarrel, D
Maleev, VP
Mao, D
Masciocchi, S
Mathew, P
Mattson, M
Matveev, V
McCliment, E
McKenna, SL
Moinester, MA
Morelos, A
Mukhin, VA
Nelson, KD
Nemitkin, AV
Neoustroev, PV
Newsom, C
Nilov, AP
Nurushev, SB
Ocherashvili, A
Oleynik, G
Onel, Y
Ozel, E
Kim, VT
Jun, SY
Akchurin, N
Andreev, VA
Atamantchouk, AG
Aykac, M
Balatz, MY
Bondar, NF
Bravar, A
Cooper, PS
Dauwe, LJ
Davidenko, GV
Dersch, U
Dolgolenko, AG
Dreossi, D
Dzyubenko, GB
Edelstein, R
Emediato, L
Endler, AMF
Engelfried, J
Eschrich, I
Escobar, CO
Evdokimov, AV
Filimonov, IS
Garcia, FG
Gaspero, M
Gerzon, S
Giller, I
Golovtsov, VL
Goncharenko, YM
Gottschalk, E
Gouffon, P
Grachov, OA
Gulmez, E
Iori, M
Kamenski, AD
Kangling, H
Kaya, M
Kilmer, J
Patrichev, S
Penzo, A
Petrenko, SI
Pogodin, P
Povh, B
Procario, M
Prutskoi, VA
Ramberg, E
Rappazzo, GF
Razmyslovich, BV
Rud, VI
Russ, J
Metadata
Show full item recordAbstract
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.
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