Observation of the Cabibbo-Suppressed DecayΞc+→pK−π

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

doi:10.1103/PhysRevLett.84.1857

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Observation of the Cabibbo-Suppressed DecayΞc+→pK−π

Journal article

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Observation of the Cabibbo-Suppressed DecayΞc+→pK−π

S. Y Jun, N Akchurin, V. A Andreev, A. G Atamantchouk, M Aykac, M. Y Balatz, N. F Bondar, A Bravar, P. S Cooper, L. J Dauwe, …

Physical review letters, Vol.84(9), pp.1857-1861

02/2000

DOI: 10.1103/PhysRevLett.84.1857

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https://arxiv.org/pdf/hep-ex/9907062View

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Abstract

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 600GeV/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.

Details

Title: Subtitle: Observation of the Cabibbo-Suppressed DecayΞc+→pK−π
Creators: S. Y Jun - Carnegie Mellon University
N Akchurin - University of Iowa
V. A Andreev - Petersburg Nuclear Physics Institute
A. G Atamantchouk - Petersburg Nuclear Physics Institute
M Aykac - University of Iowa
M. Y Balatz - Institute of Theoretical and Experimental Physics, Moscow, Russia (Russian Federation)
N. F Bondar - Petersburg Nuclear Physics Institute
A Bravar - University of Trieste
P. S Cooper - Fermi National Accelerator Laboratory
L. J Dauwe - and others
G. V Davidenko
U Dersch
A. G Dolgolenko
D Dreossi
G. B Dzyubenko
R Edelstein
L Emediato
A. M. F Endler
J Engelfried
I Eschrich
C. O Escobar
A. V Evdokimov
I. S Filimonov
F. G Garcia
M Gaspero
S Gerzon
I Giller
V. L Golovtsov
Y. M Goncharenko
E Gottschalk
P Gouffon
O. A Grachov
E Gülmez
M Iori
A. D Kamenski
H Kangling
M Kaya
J Kilmer
V. T 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
S Kwan
J Lach
A Lamberto
L. G Landsberg
I Larin
E. M Leikin
M Luksys
T Lungov
D Magarrel
V. P Maleev
D Mao
S Masciocchi
P Mathew
M Mattson
V Matveev
E McCliment
S. L McKenna
M. A Moinester
V. V Molchanov
A Morelos
V. A Mukhin
K. D Nelson
A. V Nemitkin
P. V Neoustroev
C Newsom
A. P Nilov
S. B Nurushev
A Ocherashvili
G Oleynik
Y Onel
E Ozel
S Ozkorucuklu
S Patrichev
A Penzo
S. I Petrenko
P Pogodin
B Povh
M Procario
V. A Prutskoi
E Ramberg
G. F Rappazzo
B. V Razmyslovich
V. I Rud
J Russ
P Schiavon
V. K Semyatchkin
J Simon
A. I Sitnikov
D Skow
V. J Smith
M Srivastava
V Steiner
V Stepanov
L Stutte
M Svoiski
N. K Terentyev
G. P Thomas
L. N Uvarov
A. N Vasiliev
D. V Vavilov
V. S Verebryusov
V. A Victorov
V. E Vishnyakov
A. A Vorobyov
K Vorwalter
Z Wenheng
J You
L Yunshan
M Zhenlin
L Zhigang
R Zukanovich Funchal
Resource Type: Journal article
Publication Details: Physical review letters, Vol.84(9), pp.1857-1861
DOI: 10.1103/PhysRevLett.84.1857
ISSN: 0031-9007
eISSN: 1079-7114
Language: English
Date published: 02/2000
Academic Unit: Physics and Astronomy
Record Identifier: 9984199789302771

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