Fragmentation functions in nuclear media

We perform a detailed phenomenological analysis of how well hadronization in nuclear environments can be described in terms of effective fragmentation functions. The medium modified fragmentation functions are assumed to factorize from the partonic scattering cross sections and evolve in the hard sc...

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Publicado: 2010
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_15507998_v81_n5_p_Sassot
http://hdl.handle.net/20.500.12110/paper_15507998_v81_n5_p_Sassot
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Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
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spelling paper:paper_15507998_v81_n5_p_Sassot2023-06-08T16:22:12Z Fragmentation functions in nuclear media We perform a detailed phenomenological analysis of how well hadronization in nuclear environments can be described in terms of effective fragmentation functions. The medium modified fragmentation functions are assumed to factorize from the partonic scattering cross sections and evolve in the hard scale in the same way as the standard or vacuum fragmentation functions. Based on precise data on semi-inclusive deep-inelastic scattering off nuclei and hadron production in deuteron-gold collisions, we extract sets of effective fragmentation functions for pions and kaons at next-to-leading order accuracy. The obtained sets provide a rather accurate description of the kinematical dependence of the analyzed cross sections and are found to differ significantly from standard fragmentation functions both in shape and magnitude. Our results support the notion of factorization and universality in the studied nuclear environments, at least in an effective way and within the precision of the available data. © 2010 The American Physical Society. 2010 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_15507998_v81_n5_p_Sassot http://hdl.handle.net/20.500.12110/paper_15507998_v81_n5_p_Sassot
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
description We perform a detailed phenomenological analysis of how well hadronization in nuclear environments can be described in terms of effective fragmentation functions. The medium modified fragmentation functions are assumed to factorize from the partonic scattering cross sections and evolve in the hard scale in the same way as the standard or vacuum fragmentation functions. Based on precise data on semi-inclusive deep-inelastic scattering off nuclei and hadron production in deuteron-gold collisions, we extract sets of effective fragmentation functions for pions and kaons at next-to-leading order accuracy. The obtained sets provide a rather accurate description of the kinematical dependence of the analyzed cross sections and are found to differ significantly from standard fragmentation functions both in shape and magnitude. Our results support the notion of factorization and universality in the studied nuclear environments, at least in an effective way and within the precision of the available data. © 2010 The American Physical Society.
title Fragmentation functions in nuclear media
spellingShingle Fragmentation functions in nuclear media
title_short Fragmentation functions in nuclear media
title_full Fragmentation functions in nuclear media
title_fullStr Fragmentation functions in nuclear media
title_full_unstemmed Fragmentation functions in nuclear media
title_sort fragmentation functions in nuclear media
publishDate 2010
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_15507998_v81_n5_p_Sassot
http://hdl.handle.net/20.500.12110/paper_15507998_v81_n5_p_Sassot
_version_ 1768546509262946304

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