Study of high-pt charged particle suppression in PbPb compared to pp collisions at √sNN = 2.76 TeV

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URI: https://hdl.handle.net/10902/26659
ISSN: 1434-6044
ISSN: 1434-6052
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Autoría
Chatrchyan, S.; Brochero Cifuentes, Javier AndrésAutoridad Unican; Cabrillo Bartolomé, José IbanAutoridad Unican; Calderón Tazón, AliciaAutoridad Unican; Chuang, S. H.; Duarte Campderros, JorgeAutoridad Unican; Felcini, Marta; Fernández García, MarcosAutoridad Unican; Gómez Gramuglio, GervasioAutoridad Unican; González Sánchez, Francisco JavierAutoridad Unican; Jordá Lope, Clara; Lobelle Pardo, Patricia; López Virto, María Amparo; Marco de Lucas, JesúsAutoridad Unican; Marco de Lucas, Rafael José; Martínez Rivero, Celso; Matorras Weinig, FranciscoAutoridad Unican; Muñoz Sánchez, Francisca Javiela; Piedra Gómez, JonatanAutoridad Unican; [et al.]
Fecha
2012-03-29
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Attribution 4.0 International ©CERN for the benefit of the CMS collaboration 2012. This article is published with open access at Springerlink.com
Publicado en
European Physical Journal C (2012) 72, 3, 1945
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Springer New York LLC
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Resumen/Abstract
The transverse momentum spectra of charged particles have been measured in pp and PbPb collisions at √snn = 2.76 TeV by the CMS experiment at the LHC. In the transverse momentum range pt = 5-10 GeV/c, the charged particle yield in the most central PbPb collisions is suppressed by up to a factor of 7 compared to the pp yield scaled by the number of incoherent nucleon-nucleon collisions. At higher pt, this suppression is significantly reduced, approaching roughly a factor of 2 for particles with pt in the range pt = 40-100 GeV/c.
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Attribution 4.0 International ©CERN for the benefit of the CMS collaboration 2012. This article is published with open access at Springerlink.comExcepto si se señala otra cosa, la licencia del ítem se describe como Attribution 4.0 International ©CERN for the benefit of the CMS collaboration 2012. This article is published with open access at Springerlink.com