Measurement of inclusive jet charged-particle fragmentation functions in Pb+Pb collisions at √s<sub>NN</sub> = 2.76 TeV with the ATLAS detector

Measurements of charged-particle fragmentation functions of jets produced in ultra-relativistic nuclear collisions can provide insight into the modification of parton showers in the hot, dense medium created in the collisions. ATLAS has measured jets in √s<sub>NN</sub> = 2.76 TeV Pb+Pb c...

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Autores principales:	Alconada Verzini, María Josefina, Alonso, Francisco, Anduaga, Xabier Sebastián, Dova, María Teresa, Monticelli, Fernando Gabriel, Wahlberg, Hernán Pablo, The ATLAS Collaboration
Formato:	Articulo
Lenguaje:	Inglés
Publicado:	2014
Materias:	Ciencias Exactas Física nuclear collisions Physics Measurement collisions particles
Acceso en línea:	http://sedici.unlp.edu.ar/handle/10915/125534
Aporte de:	SEDICI (UNLP) de Universidad Nacional de La Plata

id	I19-R120-10915-125534
record_format	dspace
institution	Universidad Nacional de La Plata
institution_str	I-19
repository_str	R-120
collection	SEDICI (UNLP)
language	Inglés
topic	Ciencias Exactas Física nuclear collisions Physics Measurement collisions particles
spellingShingle	Ciencias Exactas Física nuclear collisions Physics Measurement collisions particles Alconada Verzini, María Josefina Alonso, Francisco Anduaga, Xabier Sebastián Dova, María Teresa Monticelli, Fernando Gabriel Wahlberg, Hernán Pablo The ATLAS Collaboration Measurement of inclusive jet charged-particle fragmentation functions in Pb+Pb collisions at √s<sub>NN</sub> = 2.76 TeV with the ATLAS detector
topic_facet	Ciencias Exactas Física nuclear collisions Physics Measurement collisions particles
description	Measurements of charged-particle fragmentation functions of jets produced in ultra-relativistic nuclear collisions can provide insight into the modification of parton showers in the hot, dense medium created in the collisions. ATLAS has measured jets in √s<sub>NN</sub> = 2.76 TeV Pb+Pb collisions at the LHC using a data set recorded in 2011 with an integrated luminosity of 0.14 nb⁻¹. Jets were reconstructed using the anti-kt algorithm with distance parameter values R = 0.2, 0.3, and 0.4. Distributions of charged-particle transverse momentum and longitudinal momentum fraction are reported for seven bins in collision centrality for R = 0.4 jets with p<sup>jet</sup><sub>T</sub> > 100 GeV. Commensurate minimum p<sub>T</sub> values are used for the other radii. Ratios of fragment distributions in each centrality bin to those measured in the most peripheral bin are presented. These ratios show a reduction of fragment yield in central collisions relative to peripheral collisions at intermediate z values, 0.04 ≲ z ≲ 0.2, and an enhancement in fragment yield for z ≲ 0.04. A smaller, less significant enhancement is observed at large z and large p<sub>T</sub> in central collisions.
format	Articulo Articulo
author	Alconada Verzini, María Josefina Alonso, Francisco Anduaga, Xabier Sebastián Dova, María Teresa Monticelli, Fernando Gabriel Wahlberg, Hernán Pablo The ATLAS Collaboration
author_facet	Alconada Verzini, María Josefina Alonso, Francisco Anduaga, Xabier Sebastián Dova, María Teresa Monticelli, Fernando Gabriel Wahlberg, Hernán Pablo The ATLAS Collaboration
author_sort	Alconada Verzini, María Josefina
title	Measurement of inclusive jet charged-particle fragmentation functions in Pb+Pb collisions at √s<sub>NN</sub> = 2.76 TeV with the ATLAS detector
title_short	Measurement of inclusive jet charged-particle fragmentation functions in Pb+Pb collisions at √s<sub>NN</sub> = 2.76 TeV with the ATLAS detector
title_full	Measurement of inclusive jet charged-particle fragmentation functions in Pb+Pb collisions at √s<sub>NN</sub> = 2.76 TeV with the ATLAS detector
title_fullStr	Measurement of inclusive jet charged-particle fragmentation functions in Pb+Pb collisions at √s<sub>NN</sub> = 2.76 TeV with the ATLAS detector
title_full_unstemmed	Measurement of inclusive jet charged-particle fragmentation functions in Pb+Pb collisions at √s<sub>NN</sub> = 2.76 TeV with the ATLAS detector
title_sort	measurement of inclusive jet charged-particle fragmentation functions in pb+pb collisions at √s<sub>nn</sub> = 2.76 tev with the atlas detector
publishDate	2014
url	http://sedici.unlp.edu.ar/handle/10915/125534
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Measurement of inclusive jet charged-particle fragmentation functions in Pb+Pb collisions at √s<sub>NN</sub> = 2.76 TeV with the ATLAS detector

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