Ultrasoft Quark Damping in High-T QCD

Journal Article · Tue Feb 27 00:00:00 EST 2007 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.2714460· OSTI ID:21056901

Abada, Abdessamad ^[1]; Daira-Aifa, Nacera ^[2]; Bouakaz, Karima ^[3]

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1. Physics Department, United Arab Emirates University, POB 17551 Al Ain (United Arab Emirates)
2. Facutle de Physique, USTHB, BP32 Al Alia, Bab Ezzouar 16111 Alger (Algeria)
3. Departement de Physique, Ecole Normale Superieure, BP92 Vieux-Kouba, 16052 Alger (Algeria)

We determine the ultrasoft quark damping rates in the context of next-to-leading order hard-thermal-loop summed perturbation of high-temperature QCD. Three types of divergences are encountered: infrared, light-cone and at specific points determined by the gluon energies. The infrared divergence persists and is logarithmic whereas the two others are circumvented.

• OSTI ID: 21056901
• Journal Information: AIP Conference Proceedings, Vol. 892, Issue 1; Conference: QCHS7: 7. conference on quark confinement and the hadron spectrum, Ponta Delgada, Acores (Portugal), 2-7 Sep 2006; Other Information: DOI: 10.1063/1.2714460; (c) 2007 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
GLUONS
INFRARED DIVERGENCES
LIGHT CONE
PERTURBATION THEORY
QUANTUM CHROMODYNAMICS
QUARK MATTER
QUARKS