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χ particle production in π-p collisions at 38 GeV/c

Authors :
Binon, Freddy
Donskov, Sergey
Duteil, P.
Gouanère, M.
Inyakin, Alexandre A.V.
Kachanov, Vasilij V.A.
Kakauridze, D.B. D.B.
Khaustov, G.
Kulik, Alexei A.V.
Lagnaux, Jean-Pierre
Lednev, Andrey
Mikhailov, Yu
Mouthuy, Th
Peigneux, Jean Pierre
Possoz, A.
Prokoshkin, Yu Y.D.
Rodnov, Yu Y.V.
Sadovsky, Sergey S.A.
Sillou, Daniel
Singovsky, Alexandre A.V.
Stroot, Jean-Pierre
Sugonyaev, Valentine
Binon, Freddy
Donskov, Sergey
Duteil, P.
Gouanère, M.
Inyakin, Alexandre A.V.
Kachanov, Vasilij V.A.
Kakauridze, D.B. D.B.
Khaustov, G.
Kulik, Alexei A.V.
Lagnaux, Jean-Pierre
Lednev, Andrey
Mikhailov, Yu
Mouthuy, Th
Peigneux, Jean Pierre
Possoz, A.
Prokoshkin, Yu Y.D.
Rodnov, Yu Y.V.
Sadovsky, Sergey S.A.
Sillou, Daniel
Singovsky, Alexandre A.V.
Stroot, Jean-Pierre
Sugonyaev, Valentine
Source :
Nuclear physics. B, 239 (2
Publication Year :
1984

Abstract

The production of χ particles in the reaction π-p → χ + .has been studied near threshold. The measurements have been performed at the 70 GeV IHEP proton synchrotron using the hodoscope spectrometer GAMS-2000. The χ particles have been identified through their decay χ → J/ψ + γ, J/ψ → e+e-. In the region XF ≳0.4 the fraction of obsered J/ψ particles which is obtained via the decay of χ states is 0.44 ± 0.16. The χ longitudinal and transverse momentum distributions are similar to those obtained for J/ψ. The inclusive production cross section of χ particles (3P1 and 3P2 states) at 38 GeV/c is σXF>0 (π-p → χ + .) = (28±11) nb. © 1984.<br />SCOPUS: ar.j<br />info:eu-repo/semantics/published

Details

Database :
OAIster
Journal :
Nuclear physics. B, 239 (2
Notes :
1 full-text file(s): application/pdf, English
Publication Type :
Electronic Resource
Accession number :
edsoai.ocn915541296
Document Type :
Electronic Resource