/ Experiment-HEP hep-ex/9912005


A Spin analysis of the 4 pi channels produced in central p p interactions at 450-GeV/c


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.

Published in: Phys.Lett.
Year: 2000
Vol.: B471
Page No: 440-448
Pages: 15

Abstract: The reactions pp -> pf (X0) ps, where X0 is observed decaying to pi0pi0pi0pi0, pi+pi-pi0pi0 and pi+pi-pi+pi-, have been studied at 450 GeV/c. There is evidence for an a2(1320)pi decay mode of the eta2(1645) and eta2(1870) in the pi+pi-pi0pi0 and pi+pi-pi+pi- final states. The f2(1950) is consistent with being a single resonance with a dominant f2(1270)pipi decay mode. The f0(1370) is found to decay dominantly to rho-rho while the f0(1500) is found to decay to rho-rho and sigma-sigma.

Web-Page: http://pdglive.lbl.gov/REFERENCE_info1.brl?slacrpp=PHLTA,B471,440

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