Timelike Compton Scattering at LHC - Archive ouverte HAL
Pré-Publication, Document De Travail Année : 2009

Timelike Compton Scattering at LHC

Résumé

Exclusive photoproduction of dileptons, gamma N ->l+ l- N, is and will be measured in ultraperipheralcollisions 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-00383970 , version 1 (14-05-2009)

Identifiants

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B. Pire, L. Szymanowski, J. Wagner. Timelike Compton Scattering at LHC. 2009. ⟨hal-00383970⟩
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