$\\pi\\eta$ pair hard electroproduction and exotic hybrid mesons

I. V. Anikin (1, 2) , B. Pire (2) , L. Szymanowski , O. V. Teryaev , S. Wallon (1)

1 LPT - Laboratoire de Physique Théorique d'Orsay [Orsay]
2 CPHT - Centre de Physique Théorique [Palaiseau]

We show that hard electroproduction is a promising way to study exotic hybrid mesons, in particular through the hybrid decay channel $H \\to \\pi\\eta $. We discuss the $\\pi\\eta$ generalized distribution amplitude, calculate the production amplitude and propose a forward-backward asymmetry as a signal for the hybrid meson production.

Domaines: Physique des Hautes Energies - Phénoménologie [hep-ph]

I. V. Anikin, B. Pire, L. Szymanowski, O. V. Teryaev, S. Wallon. $\\pi\\eta$ pair hard electroproduction and exotic hybrid mesons. Nuclear Physics A, 2005, 755, pp.561-564. ⟨hal-00009484⟩