Classical gluon radiation in ultrarelativistic nuclear collisions: Space-time structure, instabilities, and thermalization

Journal Article · Wed Apr 01 00:00:00 EST 1998 · Physical Review, C

DOI:https://doi.org/10.1103/PhysRevC.57.1927· OSTI ID:627569

Matinyan, S G; Mueller, B; Rischke, D H ^[1]; Matinyan, S G ^[2]

---

1. Department of Physics, Duke University, Box 90305, Durham, North Carolina27708-0305 (United States)
2. Yerevan Physics Institute, Yerevan375036 (Armenia)

We investigate the space-time structure of the classical gluon field produced in an ultrarelativistic collision between color charges. The classical solution which was computed previously in a perturbative approach is shown to become unstable on account of the non-Abelian self-interaction neglected in the perturbative solution scheme. The time scale for growth of the instabilities is found to be of the order of the distance between the colliding color charges. We argue that these instabilities will eventually lead to thermalization of gluons produced in an ultrarelativistic collision between heavy nuclei. The rate of thermalization is estimated to be of order g{sup 2}{mu}, where g is the strong coupling constant and {mu}{sup 2} the transverse color charge density of an ultrarelativistic nucleus. {copyright} {ital 1998} {ital The American Physical Society}

• OSTI ID: 627569
• Journal Information: Physical Review, C, Vol. 57, Issue 4; Other Information: PBD: Apr 1998
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
HEAVY ION REACTIONS
GLUONS
RADIATIONS
RELATIVISTIC RANGE
SPACE-TIME
INSTABILITY
THERMALIZATION
PERTURBATION THEORY
COLOR
HEAVY NUCLEI
CHARGE DENSITY
COUPLING CONSTANTS
QUANTUM CHROMODYNAMICS
CHIRAL SYMMETRY