A possible resolution of the e+e- --> Nbar N puzzle

Details A possible resolution of the e+e- --> Nbar N puzzle A possible resolution of the e+e- --> Nbar N puzzle

2001-08-12

arxiv.org/abs/hep-ph/0108106v1

eConf C010430 (2001) W10

Physics

High Energy Physics

High Energy Physics - Phenomenology

Invited talk at the workshop "e+e- Physics at Intermediate Energies", SLAC, April 30 - May 2, 2001; paper No. W10; 6 pages, 6

Scientific paper

We sketch some recent ideas proposed as the mechanism behind the puzzling experimental results on baryon-antibaryon production in e+e- annihilation close to threshold. The essential new point in the proposed mechanism is that it is a two-stage process, with a coherent state of pions serving as an intermediary between e+e- and the baryon-antibaryon system. Skyrmion-antiskyrmion annihilation is proposed as a concrete computational framework for a quantitative description of the baryon-antibaryon annihilation. We also point out the possible connection to similarly puzzling data on baryon-antibaryon production in photon-photon collision.

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