Centrality and pseudorapidity dependence of the transverse energy density in pPb collisions at √sNN=5.02 TeV
dc.contributor.author | Sirunyan, A. M. | pt_BR |
dc.contributor.author | Silveira, Gustavo Gil da | pt_BR |
dc.contributor.author | CMS Collaboration | pt_BR |
dc.date.accessioned | 2019-09-12T03:42:13Z | pt_BR |
dc.date.issued | 2019 | pt_BR |
dc.identifier.issn | 0556-2813 | pt_BR |
dc.identifier.uri | http://hdl.handle.net/10183/199129 | pt_BR |
dc.description.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, η, for pPb collisions at a center-of-mass energy per nucleon pair of √sNN=5.02TeV. The huge angular acceptance exploits the fact that the CASTOR calorimeter at −6.6<η<−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/dη is 22GeV, which implies an ET per participant nucleon pair comparable to that of peripheral PbPb collisions at √sNN=2.76TeV. The increase of dET/dη with centrality is much stronger for the lead-going side than for the proton-going side. The η dependence of dET/dη is sensitive to the η 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 η and centrality dependence of the data and the correlations observed between different η regions | en |
dc.format.mimetype | application/pdf | pt_BR |
dc.language.iso | eng | pt_BR |
dc.relation.ispartof | Physical review. C, Nuclear physics. Melville. Vol. 100, no. 2 (Aug. 2019), 024902, 20 p. | pt_BR |
dc.rights | Open Access | en |
dc.subject | Colisao de ions pesados | pt_BR |
dc.subject | Aceleradores de partículas | pt_BR |
dc.subject | Hadrons | pt_BR |
dc.title | Centrality and pseudorapidity dependence of the transverse energy density in pPb collisions at √sNN=5.02 TeV | pt_BR |
dc.type | Artigo de periódico | pt_BR |
dc.identifier.nrb | 001100143 | pt_BR |
dc.type.origin | Estrangeiro | pt_BR |
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