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2012

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Please use this identifier to cite or link to this item: https://hdl.handle.net/2445/50664

On the interplay between Q^2 and t dependence in exclusive diffractive production of real photons and vector mesons in ep collisions

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Abstract

We show how the familiar phenomenological way of combining the Q2 (photon virtuality) and t (squared momentum transfer) dependences of the scattering amplitude in Deeply Virtual Compton Scattering (DVCS) [1, 2] and Vector Meson Production (VMP) [2] processes can be understood in an off-mass-shell generalization of dual amplitudes with Mandelstam analyticity [3]. By comparing different approaches, we managed also to constrain the numerical values of the free parameters.

Subject

Física nuclear, Partícules (Física nuclear), Fotons, Col·lisions (Física nuclear)

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Nuclear physics, Particles (Nuclear physics), Photons, Collisions (Nuclear physics)

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Articles publicats en revistes (Física Quàntica i Astrofísica)

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FIORE, Roberto, et al. On the interplay between Q^2 and t dependence in exclusive diffractive production of real photons and vector mesons in ep collisions. Ukrainskii Fizicheskii Zhurnal. 2012. Vol. 57, num. 12, pags. 1197-1204. ISSN 0503-1265. [consulted: 14 of August of 2026]. Available at: https://hdl.handle.net/2445/50664

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