A study of the $\eta \pi^{+} \pi^{-}$ channel produced in central pp interactions at 450 GeV/c

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The reaction pp to p/sub f/( eta pi /sup +/ pi /sup -/)p/sub s/ has been studied at 450 GeV/c. There is clear evidence for an a/sub 2 /(1320) pi decay mode of the eta /sub 2/(1645) and eta /sub 2/(1870). In addition, there is evidence for an a/sub 0/(980) pi decay mode of both resonances and an f/su...

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Detalles Bibliográficos
Autores principales: Barberis, D, Binon, F.G, Close, F.E, Danielsen, K.M, Donskov, S.V, Earl, B.C, Evans, D, French, B.R, Hino, T, Inaba, S, Jacholkowski, A, Jacobsen, T, Khaustov, G.V, Kinson, J.B, Kirk, A, Kondashov, A.A, Lednev, A.A, Lenti, V, Minashvili, I, Peigneux, J.P, Romanovsky, V, Russakovich, N, Semenov, A, Shagin, P.M, Shimizu, H, Singovsky, A.V, Sobol, A, Stassinaki, M, Stroot, J.P, Takamatsu, K, Tsuru, T, Villalobos Baillie, O, Votruba, M.F, Yasu, Y
Lenguaje:eng
Publicado: 2000
Materias:
Particle Physics - Experiment
Acceso en línea:https://dx.doi.org/10.1016/S0370-2693(99)01394-5
http://cds.cern.ch/record/433014
Descripción
Sumario:The reaction pp to p/sub f/( eta pi /sup +/ pi /sup -/)p/sub s/ has been studied at 450 GeV/c. There is clear evidence for an a/sub 2 /(1320) pi decay mode of the eta /sub 2/(1645) and eta /sub 2/(1870). In addition, there is evidence for an a/sub 0/(980) pi decay mode of both resonances and an f/sub 2/(1270) eta decay mode of the eta /sub 2/(1870). No evidence is found for a J/sup PC/=2/sup ++/a/sub 2 /(1320) pi wave. (8 refs).

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