학술논문

Coherent Vector Meson Photo-Production from Deuterium at Intermediate Energies
Document Type
Working Paper
Source
Phys.Rev.C73:045202,2006
Subject
High Energy Physics - Phenomenology
Language
Abstract
We analyze the cross section for vector meson photo-production off a deuteron for the intermediate range of photon energies starting at a few GeVs above the threshold and higher. We reproduce the steps in the derivation of the conventional non-relativistic Glauber expression based on an effective diagrammatic method while making corrections for Fermi motion and intermediate energy kinematic effects. We show that, for intermediate energy vector meson production, the usual Glauber factorization breaks down and we derive corrections to the usual Glauber method to linear order in longitudinal nucleon momentum. The purpose of our analysis is to establish methods for probing interesting physics in the production mechanism for phi-mesons and heavier vector mesons. We demonstrate how neglecting the breakdown of Glauber factorization can lead to errors in measurements of basic cross sections extracted from nuclear data.
Comment: 41 pages, 13 figures, figure 9 is compressed from previous version, typos fixed