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arXiv · 0909.5118

Angular-ordered parton showers with medium-modified splitting functions

Nestor Armesto·Gennaro Corcella·Leticia Cunqueiro·Carlos A. Salgado
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Abstract

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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Nestor Armesto, Gennaro Corcella, Leticia Cunqueiro, Carlos A. Salgado. 2009-09-28. Angular-ordered parton showers with medium-modified splitting functions. https://doi.org/10.1088/1126-6708/2009/11/122

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