Modified Altarelli-Parisi splitting functions were recently proposed to model multi-parton radiation in a dense medium and describe jet quenching, one of the 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
Angular-ordered parton shower with medium-modified splitting functions / Armesto, N.; Corcella, G.; Cunqueiro, L.; Salgado, C. A.. - In: JOURNAL OF HIGH ENERGY PHYSICS. - ISSN 1029-8479. - (2009). [10.1088/1126-6708/2009/11/122]
Angular-ordered parton shower with medium-modified splitting functions
G. Corcella;L. Cunqueiro;C. A. Salgado
2009
Abstract
Modified Altarelli-Parisi splitting functions were recently proposed to model multi-parton radiation in a dense medium and describe jet quenching, one of the 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 cascadesI documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
