Timelike Compton Scattering in Ultraperipheral Collisions - Archive ouverte HAL
Pré-Publication, Document De Travail Année : 2009

Timelike Compton Scattering in Ultraperipheral Collisions

Résumé

Exclusive photoproduction of dileptons, gamma N ->l+l- N, is and will be measured in ultraperipheral collisions at hadron colliders. We demonstrate that the timelike deeply virtual Compton scattering (TCS) mechanism gamma q -> l+l- q, where the lepton pair comes from the subprocess gamma q -> gamma* q, dominates in some accessible kinematical regions, thus opening a new way to study generalized parton distributions (GPD) in the nucleon at small skewedness.

Dates et versions

hal-00400148 , version 1 (30-06-2009)

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B. Pire, L. Szymanowski, J. Wagner. Timelike Compton Scattering in Ultraperipheral Collisions. 2009. ⟨hal-00400148⟩
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