/ Experiment-HEP hep-ex/9909013


Experimental evidence for a vector like behavior of Pomeron exchange


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: 1999
Vol.: B467
Page No: 165-170
Pages: 13

Abstract: Evidence is presented that the Pomeron act as a non-conserved vector current. A study has been made of the azimuthal angle phi, which is defined as the angle between the pT vectors of the two outgoing protons, in the reaction pp -> pp(X0) for those resonances (X0) which are compatible with being produced by double Pomeron exchange. These distributions have been compared with a model which describes the Pomeron as a non-conserved vector current and a qualitative agreement is found. In addition, when one of the particles exchanged is known to have spin 0, namely pi-Pomeron exchange, the phi distribution is flat.

Web-Page: http://www.adsabs.harvard.edu/abs/1999PhLB..467..165B; http://alice.cern.ch/format/showfull?sysnb=0325615; http://dx.doi.org/10.1016/S0370-2693(99)01186-7; http://www.sciencedirect.com/science?_ob=GatewayURL&_origin=SPIRES&_method=citationSearch&_volkey=03702693%23467%23165%23&_version=1&md5=805e90fb775a131b31c7faa8ef328bba

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