Production of qq pairs in proton-nucleus collisions at high energies

Journal Article · Fri Sep 01 04:00:00 EDT 2006 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.74.054014· OSTI ID:20871102

Kovchegov, Yuri V ^[1]; Tuchin, Kirill ^[2]

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1. Department of Physics, Ohio State University, Columbus, Ohio 43210 (United States)
2. Department of Physics and Astronomy, Iowa State University, Ames, Iowa 50011 (United States)

We calculate production of quark-antiquark pairs in high energy proton-nucleus collisions both in the quasiclassical approximation of McLerran-Venugopalan model and including quantum small-x evolution. The resulting production cross section is explicitly expressed in terms of Glauber-Mueller multiple rescatterings in the classical case and in terms of dipole-nucleus scattering amplitude in the quantum evolution case. We generalize the result of [K. Tuchin, Phys. Lett. B 593, 66 (2004).] beyond the aligned jet configurations. We expand on the earlier results of Blaizot, Gelis and Venugopalan [J. P. Blaizot, F. Gelis, and R. Venugopalan, Nucl. Phys. A743, 57 (2004).] by deriving quark production cross section including quantum evolution corrections in rapidity intervals both between the quarks and the target and between the quarks and the projectile.

• OSTI ID: 20871102
• Journal Information: Physical Review. D, Particles Fields, Journal Name: Physical Review. D, Particles Fields Journal Issue: 5 Vol. 74; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
APPROXIMATIONS
CORRECTIONS
CROSS SECTIONS
DIPOLES
GLAUBER THEORY
JET MODEL
NUCLEI
PARTICLE PRODUCTION
PARTICLE RAPIDITY
PROTON-NUCLEON INTERACTIONS
QUARK-ANTIQUARK INTERACTIONS
QUARKS
RESCATTERING
SCATTERING AMPLITUDES