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Abstract: The almost hermetic coverage of the CMS detector is used to measure the distribution of transverse energy,ET, over 13.2 units of pseudorapidity, ?, for pPb collisions at a center-of-mass energy per nucleon pair of ?sNN =5.02 TeV. The huge angular acceptance exploits the fact that the CASTOR calorimeter at ?6.6 ? ?5.2 is effectively present on both sides of the colliding system because of a switch in the proton-going and lead-going beam directions. This wide acceptance enables the study of correlations between well-separated angular regions and makes the measurement a particularly powerful test of event generators. For minimum bias pPb collisions the maximum value of dET/d? is 22 GeV, which implies an ET per participant nucleon pair comparable to that of peripheral PbPb collisions at ?sNN = 2.76 TeV. The increase of dET/d? with centrality is much stronger for the lead-going side than for the proton-going side. The ? dependence of dET/d? is sensitive to the ? range in which the centrality variable is defined. Several modern generators are compared to these results but none is able to capture all aspects of the ? and centrality dependence of the data and the correlations observed between different ? regions.
Fuente: Phys. Rev. C 100, 024902 (2019)
Editorial: American Physical Society
Fecha de publicación: 01/08/2019
Nº de páginas: 20
Tipo de publicación: Artículo de Revista
DOI: 10.1103/PhysRevC.100.024902
ISSN: 0556-2813,1089-490X,2469-9985,2469-9993
Url de la publicación: https://doi.org/10.1103/PhysRevC.100.024902
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SIRUNYAN, A. M.
JOSE IBAN CABRILLO BARTOLOME
ALICIA CALDERON TAZON
BARBARA CHAZIN QUERO
JORGE DUARTE CAMPDERROS
MARCOS FERNANDEZ GARCIA
PEDRO JOSE FERNANDEZ MANTECA
ANDREA GARCIA ALONSO
JUAN GARCIA FERRERO
GERVASIO GOMEZ GRAMUGLIO
MARIA AMPARO LOPEZ VIRTO
JESUS MARCO DE LUCAS
CELSO MARTINEZ RIVERO
PABLO MARTINEZ RUIZ DEL ARBOL
FRANCISCO MATORRAS WEINIG
JONATAN PIEDRA GOMEZ
CEDRIC GERALD PRIEELS
MARIA TERESA RODRIGO ANORO
ALBERTO RUIZ JIMENO
LUCA SCODELLARO
NICOLO TREVISANI
IVAN VILA ALVAREZ
ROCIO VILAR CORTABITARTE
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