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

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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Autoría: Chatrchyan S., Khachatryan V., Sirunyan A.M., Tumasyan A., Adam W., Bergauer T., Dragicevic M., Erö J., Fabjan C., Friedl M., Frühwirth R., Ghete V.M., Hammer J., Hoch M., Hörmann N., Hrubec J., Jeitler M., Kiesenhofer W., Krammer M., Liko D., Mikulec I., Pernicka M., Rahbaran B., Rohringer C., Rohringer H., Schöfbeck R., Strauss J., Taurok A., Teischinger F., Wagner P., Waltenberger W., Walzel G., Widl E., Wulz C.E., Mossolov V

Fuente: European Physical Journal C (2012) 72, 3, 1945

Editorial: Springer New York LLC

Fecha de publicación: 29/03/2012

Nº de páginas: 22

Tipo de publicación: Artículo de Revista

DOI: 10.1140/epjc/s10052-012-1945-x

ISSN: 1434-6044,1434-6052

Url de la publicación: https://doi.org/10.1140/epjc/s10052-012-1945-x

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