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Title: On the interplay between Q^2 and t dependence in exclusive diffractive production of real photons and vector mesons in ep collisions
Author: Fiore, Roberto
Jenkovszky, Lázsló L.
Lavorini, A.
Magas, V. K.
Keywords: Física nuclear
Partícules (Física nuclear)
Col·lisions (Física nuclear)
Nuclear physics
Particles (Nuclear physics)
Collisions (Nuclear physics)
Issue Date: 2012
Publisher: Bogolyubov Institute for Theoretical Physics, National Academy of Science of Ukraine
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.
Note: Reproducció del document publicat a:
It is part of: Ukrainskii Fizicheskii Zhurnal, 2012, vol. 57, num. 12, p. 1197-1204
ISSN: 0503-1265
Appears in Collections:Articles publicats en revistes (Física Quàntica i Astrofísica)

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