Parton energy loss and momentum broadening at NLO in high temperature QCD plasmas

Ghiglieri, Jacopo; Teaney, Derek (2015). Parton energy loss and momentum broadening at NLO in high temperature QCD plasmas. International Journal of Modern Physics E, 24(11), p. 1530013. World Scientific 10.1142/S0218301315300131

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We present an overview of a perturbative-kinetic approach to jet propagation, energy loss, and momentum broadening in a high temperature quark–gluon plasma. The leading-order kinetic equations describe the interactions between energetic jet-particles and a non-abelian plasma, consisting of on-shell thermal excitations and soft gluonic fields. These interactions include ↔ scatterings, collinear bremsstrahlung, and drag and momentum diffusion. We show how the contribution from the soft gluonic fields can be factorized into a set of Wilson line correlators on the light-cone. We review recent field-theoretical developments, rooted in the causal properties of these correlators, which simplify the calculation of the appropriate Wilson lines in thermal field theory. With these simplifications lattice measurements of transverse momentum broadening have become possible, and the kinetic equations describing parton transport have been extended to next-to-leading order in the coupling g.

Item Type:

Journal Article (Original Article)

Division/Institute:

10 Strategic Research Centers > Albert Einstein Center for Fundamental Physics (AEC)
08 Faculty of Science > Institute of Theoretical Physics

UniBE Contributor:

Ghiglieri, Jacopo

Subjects:

500 Science > 530 Physics

ISSN:

0218-3013

Publisher:

World Scientific

Language:

English

Submitter:

Esther Fiechter

Date Deposited:

28 Dec 2015 13:41

Last Modified:

09 Oct 2016 02:30

Publisher DOI:

10.1142/S0218301315300131

ArXiv ID:

1502.03730v1

BORIS DOI:

10.7892/boris.74091

URI:

https://boris.unibe.ch/id/eprint/74091

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