Observation and study of a narrow state in a? ?(1,385)K + system

A.n Aleev ,D T Burilkov,V D Cholakov,A N Maksimov,E I Malynovsky,H Nowak,Ya A Vazdyk,V P Balandin,L N Shtarkov,E D Molodtsov,V.r Krastev ,N.n Karpenko ,B.n Gus'kov ,T.s Grigalashvili ,I.m Ivanchenko ,B.a Kulakov ,V.k Birulev ,V Dzhordzhadze ,S V Rusakov ,V Kekelidze ,Plamen Todorov ,A Fomenko ,I.m Geshkov ,P.k Markov ,A Morozov ,N Lomidze ,I Kosarev ,S Němeček ,A Prokeš ,N Kuzmin ,Д А Кириллов ,A Belousov ,A Pose ,Miroslav Novák ,A.s Chvyrov ,J Hladký ,L.a Slepets ,M.f Likhachev ,L.v Sil'vestrov ,Y Soloviev ,R Trayanov ,K H Hiller ,A.l Lyubimov ,H E Ryseck ,V Arefiev ,G.i Nikobadze ,E Chudakov ,V Genchev ,V.e Simonov ,N.s Amaglobeli ,R Shanidze

doi:10.1007/bf01547919

Observation and study of a narrow state in a? ?(1,385)K + system

A.n Aleev , D T Burilkov + Show 49 more

https://doi.org/10.1007/bf01547919

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Journal: Zeitschrift für Physik C: Particles and Fields	Publication Date: Sep 1, 1984
Citations: 11

Affiliation: Joint Institute for Nuclear Research, Institute for Nuclear Research and Nuclear Energy, P.N. Lebedev Physical Institute of the Russian Academy of Sciences, Russian Academy of Sciences, Tbilisi State University, Czech Academy of Sciences, Institute of Physics, Lomonosov Moscow State University

#Diffraction Dissociation Of Neutrons #Cross Section Times + Show 8 more

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Abstract

New data on the observation and study of a narrow resonance decaying intoΣ−(1,385)K+ have been obtained. The mass of the resonance is (1,956−6+8) MeV/c2, and its width is (27±15) MeV/c2. The resonance is produced in the diffraction dissociation of neutrons on quasi-free nucleons of carbon nuclei. The slope parameter of the differential cross section inPT2 is (9.9±3.0) (GeV/c)−2. The cross section times the branching ratio is (0.22±0.04) μb per nucleon. The resonance has one of the natural spinparities: 5/2+, 7/2− and so on.

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