A partial wave analysis of the centrally produced π + π − system in pp interactions at 450 GeV / c The WA 102 Collaboration

Dario Barberis, Werner Beusch, Freddy Binon, A. M. Blick,Frank E. Close,Karlin M. Danielsen, Aleksey Vladimirovich Dolgopolov,Sergey Donskov, Bill Earl,David Evans, Bernard R French,Tomoya Hino,S. Inaba, A. V. Inyakin, Toshihisa Ishida,Adam Wlodzimierz Jacholkowski,Torben S. Jacobsen, G. TJones,G. V. Khaustov, Tatsuo Kinashi, J. B. Kinson,Andrew J. Kirk, W. Klempt, Vladimīr Kolosov, Andrey A. Kondashov,Andrey Lednev,Vito Lenti, S. Maljukov, Paolo Martinengo, I. A. Minashvili, Tsubasa Nakagawa,Kent L. Norman,J-P. Peigneux,S. A. Polovnikov, Vladislav A. Polyakov,Vladimir Romanovsky,Herbert Rotscheidt, V. S. Rumyantsev,N. L. Russakovich, Vladimir D. Samoylenko,Aleksey Semenov, M. Séné, Rafael Sene, P. M. Shagin,Hirohiko M. Shimizu, Alexander Singovsky, A. E. Sobol, Alexey Solovjev, M. Spyropoulou Stassinaki, J. P. Stroot, Valentine Sugonyaev,Kunio Takamatsu, G. Tchlatchidze,T. Tsuru, Michelle C Venables,Orlando Villalobos Baillie,Michal Votruba,Yoshiji Yasu

semanticscholar（1999）

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摘要

A partial wave analysis of the centrally produced ππ channel has been performed in pp collisions using an incident beam momentum of 450 GeV/c. An unambiguous physical solution has been found. Evidence is found for the f0(980), f0(1300), f0(1500) and fJ(1710) with J = 0 in the the S-wave. The ρ(770) is observed dominantly in the P 0 -wave and the f2(1270) is observed dominantly in the D 0 -wave. In addition, there is evidence for a broad enhancement in the D-wave below 1 GeV. Submitted to Physics Letters 1 LAPP-IN2P3, Annecy, France. 2 Athens University, Physics Department, Athens, Greece. 3 School of Physics and Astronomy, University of Birmingham, Birmingham, U.K. 4 CERN European Organization for Nuclear Research, Geneva, Switzerland. 5 IHEP, Protvino, Russia. 6 IISN, Belgium. 7 JINR, Dubna, Russia. 8 High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305, Japan. 9 Faculty of Engineering, Miyazaki University, Miyazaki, Japan. 10 Oslo University, Oslo, Norway. 11 Faculty of Science, Tohoku University, Aoba-ku, Sendai 980, Japan. 12 Faculty of Science, Yamagata University, Yamagata 990, Japan.

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