Angular-ordered parton showers with medium-modified splitting functions

Details Angular-ordered parton showers with medium-modified splitting functions Angular-ordered parton showers with medium-modified splitting functions

2009-09-28

arxiv.org/abs/0909.5118v2

Physics

High Energy Physics

High Energy Physics - Phenomenology

19 pages, 8 figures, 1 table. Minor changes after referee report

Scientific paper

Modified Altarelli-Parisi splitting functions were recenty proposed to model multi-parton radiation in a dense medium and describe jet quenching, one of most striking features of heavy-ion collisions. We implement medium-modified splitting functions in the HERWIG parton shower algorithm, which satisfies the angular ordering prescription, and present a few parton-level results, such as transverse momentum, angle and energy-fraction distributions, which exhibit remarkable medium-induced effects. We also comment on the comparison with respect to the results yielded by other implementations of medium-modified splitting functions in the framework of virtuality-ordered parton cascades.

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