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26 April 2024

» arxiv » hep-ex/9707041

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Measurement of the pbar p -> Ks Ks Reaction from 0.6 to 1.9 GeV/c
C. Evangelista ; A. Palano ; D. Drijard ; N. H. Hamann ; R. T. Jones ; B. Mouellic ; S. Ohlsson ; J.-M. Perreau ; W. Eyrich ; M. Moosburger ; S. Pomp ; F. Stinzing ; H. Fischer ; J. Franz ; E. Rossle ; H. Schmitt ; H. Wirth ; A. Buzzo ; K. Kirsebom ; M. Lo Vetere ; M. Macri ; M. Marinelli ; S. Passaggio ; M. G. Pia ; A. Pozzo ; E. Robutti ; A. Santroni ; P. T. Debevec ; R. A. Eisenstein ; P. G. Harris ; D. W. Hertzog ; S. A. Hughes ; P. E. Reimer ; J. Ritter ; R. Geyer ; K. Kilian ; W. Oelert ; K. Rohrich ; M. Rook ; O. Steinkamp ; H. Korsmo ; B. Stugu ; T. Johansson ;
Date:	28 Jul 1997
Journal:	Phys.Rev. D56 (1997) 3803-3810
Subject:	hep-ex
Abstract:	The pbar p -> Ks Ks -> 4pi+/- cross section was measured at incident antiproton momenta between 0.6 and 1.9 GeV/c using the CERN Low Energy Antiproton Ring (LEAR). This investigation was part of a systematic study of in-flight antiproton-proton annihilations into two-neutral-meson final states in a search for hadronic resonances. A coarse scan of the pbar p -> Ks Ks cross section as a function of center-of-mass energy between 1.964 and 2.395 GeV/c^2 and a fine scan of the region surrounding the Xi(2220) are presented. Upper limits on the product branching ratio BR(Xi -> pbar p)BR(Xi -> Ks Ks) are determined for a wide range of mass and width assumptions based on the non-observation of the Xi(2220). A rise in the pbar p -> Ks Ks cross section is observed near 2.15 GeV/c^2, which is consistent with the f2(2150) resonance.
Source:	arXiv, hep-ex/9707041
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