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Search for narrow p¯p resonances in the reaction p¯p → p¯pπ+π−.

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Zeitschrift für Physik C Particles and Fields

Abstract

The reaction p¯p → p¯pπ+π−. has been studied with high statistics at CERN-LEAR with incident p¯ momenta from 1.65 to 2.0 GeV/c by the JETSET (PS202) experiment. The aim of this paper is to search for narrow resonances decaying to p¯p. No evidence for such structures is found. In particular, an upper limit for the production of a 2.02 GeV state with a width of Γ = 20 MeV, having been seen in other hadroproduction experiments, is established. Our results restrict the cross section for such a peak to be below 200 nb at the 95% confidence level.

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The JETSET Collaboration. Search for narrow p¯p resonances in the reaction p¯p → p¯pπ+π−.. Z Phys C - Particles and Fields 76, 475–478 (1997). https://doi.org/10.1007/s002880050570

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  • DOI: https://doi.org/10.1007/s002880050570

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