6533b854fe1ef96bd12ae0df
RESEARCH PRODUCT
Proposal for a running coupling JIMWLK equation
Tuomas LappiTuomas LappiHeikki Mäntysaarisubject
Coupling constantPhysicsNuclear and High Energy Physicsta114Field (physics)010308 nuclear & particles physicsFOS: Physical sciencesRenormalization group01 natural sciencesLangevin equationHigh Energy Physics - PhenomenologyHigh Energy Physics - Phenomenology (hep-ph)Quantum electrodynamics0103 physical sciencesEffective field theoryInitial value problemProbability distributionBoundary value problem010306 general physicsdescription
In the CGC framework the initial stages of a heavy ion collision at high energy are described as "glasma" field configurations. The initial condition for these evolving fields depends, in the CGC effective theory, on a probability distribution for color charges. The energy dependence of this distribution can be calculated from the JIMWLK renormalization group equation. We discuss recent work on a practical implementation of the running coupling constant in the Langevin method of solving the JIMWLK equation.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2014-01-01 | Nuclear Physics A |