A study of the centrally produced etapi0and etapi-systems in /pp interactions at 450 GeV/c

D Barberis,Freddy Binon,Frank E Close,K M Danielsen,S V Donskov, B C Earl, D Evans,B R French,T Hino,S Inaba,A Jacholkowski,T Jacobsen,G V Khaustov,J B Kinson,A Kirk, A A Kondashov,V N Kolosov,A A Lednev,V Lenti,I A Minashvili,J P Peigneux,V Romanovsky,N A Russakovich,A Semenov,P M Shagin,H Shimizu,Alexander Singovsky,A Sobol, M Stassinaki,J P Stroot,K Takamatsu,Tsuneaki Tsuru,Orlando Villalobos Baillie, M F Votruba,Yoshiji Yasu

Physics Letters B（2000）

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摘要

A partial wave analysis of the centrally produced eta pi(0) and eta pi(-) channels has been performed in pp collisions using an incident beam momentum of 450 GeV/c. Clear a(0)(980) and a(2)(1320) signals have been observed in S and D+ waves respectively. The dP(T), phi and \t\ distributions of these resonances are presented. (C) 2000 Elsevier Science B.V. All rights reserved.

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