2006/08/25 by Paul Hoyer, Heidi Virtanen
Physics and Astronomy · #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ex #hep-ph
paper · pdf · doi:10.1103/physrevd.75.077502
published as Phys.Rev.D75:077502,2007 · 6 pages, 2 figures
arxiv created 2006/08/25 · openalex publication_date 2007/04/18 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
We consider Semi-Exclusive Deeply Virtual Compton Scattering, \ensuremathγ*p\ensuremath→\ensuremathγY (SECS), where Y is an inclusive state of intermediate mass, \ensuremathΛQCD\ensuremath≪mY\ensuremath≪Q. When the photon is produced with a large transverse momentum k_\ensuremath⊥\ensuremath∼mY the subprocess is hard and the struck quark fragments independently of the target spectators. Using completeness this allows us to express the SECS cross section in terms of ordinary parton distributions. Apart from direct comparisons with data (yet to come) new information on Bloom-Gilman duality may be obtained through comparisons of resonance production via DVCS (\ensuremathγ*p\ensuremath→\ensuremathγN*) with the SECS scaling distribution in mY.