Electromagnetic and strong contributions to dAu soft coherent inelastic diffraction at RHIC
V. Guzey (Jefferson Lab), M. Strikman (Penn State U.)
TL;DR
This paper estimates electromagnetic and strong contributions to dAu soft coherent inelastic diffraction at RHIC, finding electromagnetic effects dominate with a sizable cross section, accounting for 10% of total inelastic interactions.
Contribution
It provides the first quantitative estimate of electromagnetic contributions to dAu diffraction at RHIC, highlighting their dominance over strong interactions.
Findings
Electromagnetic contribution is the dominant effect.
Electromagnetic cross section is approximately 214 mb.
Electromagnetic effects account for about 10% of total inelastic cross section.
Abstract
We estimate electromagnetic (ultra-peripheral) and strong contributions to dAu soft coherent inelastic diffraction at RHIC, dAu \to X Au. We show that the electromagnetic contribution is the dominant one and that the corresponding cross section is sizable, \sigma^{dAu \to XAu}_{\rm e.m.}=214 mb, which constitutes 10% of the total dAu inelastic cross section.
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Taxonomy
TopicsQuantum Chromodynamics and Particle Interactions · Physics of Superconductivity and Magnetism · High-pressure geophysics and materials