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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, Volodymyr |
Keywords: | Física nuclear Partícules (Física nuclear) Fotons Col·lisions (Física nuclear) Nuclear physics Particles (Nuclear physics) Photons 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: http://www.ujp.bitp.kiev.ua/index.php?item=j&id=158 |
It is part of: | Ukrainskii Fizicheskii Zhurnal, 2012, vol. 57, num. 12, p. 1197-1204 |
URI: | http://hdl.handle.net/2445/50664 |
ISSN: | 0503-1265 |
Appears in Collections: | Articles publicats en revistes (Física Quàntica i Astrofísica) |
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