On exotic hybrid meson production in gamma* gamma collisions - Archive ouverte HAL
Pré-Publication, Document De Travail Année : 2006

On exotic hybrid meson production in gamma* gamma collisions

Résumé

We present a theoretical study of exotic hybrid meson (JPC=1-+) production in photon-photon collisions where one of the photons is deeply virtual, including twist 2 and twist 3 contributions. We calculate the cross section of this process which turns out to be large enough to imply sizeable counting rates in the present high luminosity electron-positron colliders. We emphasize theimportance of the pi eta decay channel for the detection of the hybrid meson candidate pi_1(1400) and calculate the cross section and the angular distribution for pi eta pair production in the unpolarized case. This angular distribution is a useful tool for disentangling the hybrid meson signal from the background. Finally, we calculate the single spin asymmetry associated with one initial longitudinally polarized lepton.

Dates et versions

hal-00017633 , version 1 (24-01-2006)

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I. V. Anikin, B. Pire, L. Szymanowski, O. V. Teryaev, S. Wallon. On exotic hybrid meson production in gamma* gamma collisions. 2006. ⟨hal-00017633⟩
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