A study of pseudoscalar states produced centrally in pp interactions at 450 GeV/c

D. Barberis, W. Beusch, F. G. Binon, A. M. Blick, F. E. Close, K. M. Danielsen, A. V. Dolgopolov, S. V. Donskov, B. C. Earl, D. Evans, B. R. French, T. Hino, S. Inaba, A. V. Inyakin, T. Ishida, A. Jacholkowski, T. Jacobsen, G. T. Jones, G. V. Khaustov, T. KinashiJ. B. Kinson, A. Kirk, W. Klempt, V. Kolosov, A. A. Kondashov, A. A. Lednev, V. Lenti, S. Maljukov, P. Martinengo, I. Minashvili, K. Myklebost, T. Nakagawa, K. L. Norman, J. M. Olsen, J. P. Peigneux, S. A. Polovnikov, V. A. Polyakov, V. Romanovsky, H. Rotscheidt, V. Rumyantsev, N. Russakovich, V. D. Samoylenko, A. Semenov, M. Sené, R. Sené, P. M. Shagin, H. Shimizu, A. V. Singovsky, A. Sobol, A. Solovjev, M. Stassinaki, J. P. Stroot, V. P. Sugonyaev, K. Takamatsu, G. Tchlatchidze, T. Tsuru, M. Venables, O. Villalobos Baillie, M. F. Votruba, Y. Yasu

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40 Citations (Scopus)

Abstract

A study has been made of pseudoscalar mesons produced centrally in pp interactions. The results show that the η and η′ appear to have a similar production mechanism which differs from that of the π0. The production properties of the η and η′ are not consistent with what is expected from double Pomeron exchange. In addition the production mechanism for the η and η′ is such that the production cross section are greatest when the azimuthal angle between the pT vectors of the two protons is 90 degrees.

Original languageEnglish
Pages (from-to)398-402
Number of pages5
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume427
Issue number3-4
DOIs
Publication statusPublished - 1998 May 21
Externally publishedYes

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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