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Sigma-->gammagamma width from nucleon electromagnetic polarizabilities

José Bernabéu1, Joaquim Prades

  • 1Departament de Física Teòrica and IFIC, Universitat de València - CSIC, E-46100 Burjassot, València, Spain.

Physical Review Letters
|July 23, 2008
PubMed
Summary

The lightest QCD resonance, the sigma meson, has its coupling to photons determined. This research provides a new method to understand the sigma meson

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