Study of the reaction pbar p -> phi phi from 1.1 to 2.0 GeV/c
Abstract
A study has been performed of the reaction pbar p -> 4K using in-flight antiprotons from 1.1 to 2.0 GeV/c incident momentum interacting with a hydrogen jet target. The reaction is dominated by the production of a pair of phi mesons. The pbar p -> phi phi cross section rises sharply above threshold and then falls continuously as a function of increasing antiproton momentum. The overall magnitude of the cross section exceeds expectations from a simple application of the OZI rule by two orders of magnitude. In a fine scan around the xi/f_J(2230) resonance, no structure is observed. A limit is set for the double branching ratio B(xi -> pbar p) * B(xi -> phi phi) < 6e-5 for a spin 2 resonance of M = 2.235 GeV and Width = 15 MeV.
Keywords
Cite
@article{arxiv.hep-ex/9802016,
title = {Study of the reaction pbar p -> phi phi from 1.1 to 2.0 GeV/c},
author = {C. Evangelista and A. Palano and D. Drijard and N. H. Hamann and R. T. Jones and B. Mouëllic and S. Ohlsson and J. -M. Perreau and W. Eyrich and M. Moosburger and S. Pomp and F. Stinzing and H. Fischer and J. Franz and E. Rössle and H. Schmitt and H. Wirth and A. Buzzo and K. Kirsebom and M. Lo Vetere and M. Macr\`ı and M. Marinelli and S. Passaggio and M. G. Pia and A. Pozzo and E. Robutti and A. Santroni and P. T. Debevec and R. A. Eisenstein and P. G. Harris and D. W. Hertzog and S. A. Hughes and P. E. Reimer and J. Ritter and R. Geyer and K. Kilian and W. Oelert and K. Röhrich and M. Rook and O. Steinkamp and H. Korsmo and B. Stugu and T. Johansson},
journal= {arXiv preprint arXiv:hep-ex/9802016},
year = {2016}
}
Comments
13 pages, 13 figures, 2 tables, Latex. To be published in Phys. Rev. D