Artículos de revistas
Measurement of inclusive jet cross sections in pp and PbPb collisions at root s(NN)=2.76 TeV
Fecha
2017-07-17Registro en:
Physical Review C. College Pk: Amer Physical Soc, v. 96, n. 1, 20 p., 2017.
2469-9985
10.1103/PhysRevC.96.015202
WOS:000405709100007
WOS000405709100007.pdf
Autor
Yerevan Phys Inst
Inst Hochenergie Phys
Natl Ctr Particle & High Energy Phys
Univ Antwerp
Vrije Univ Brussel
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Universidade do Estado do Rio de Janeiro (UERJ)
Universidade Estadual Paulista (Unesp)
Universidade Federal do ABC (UFABC)
Inst Nucl Energy Res
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Inst High Energy Phys
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Institución
Resumen
Inclusive jet spectra from pp and PbPb collisions at a nucleon-nucleon center-of-mass energy of 2.76 TeV, collected with the CMS detector at the CERN Large Hadron Collider, are presented. Jets are reconstructed with three different distance parameters (R = 0.2, 0.3, and 0.4) for transverse momentum (p(T)) greater than 70 GeV/c and pseudorapidity |eta| < 2. Next-to-leading-order quantum chromodynamic calculations with nonperturbative corrections are found to overpredict jet production cross sections in pp for small distance parameters. The jet nuclear modification factors for PbPb compared to pp collisions, show a steady decrease from peripheral to central events, along with a weak dependence on the jet p(T). They are found to be independent of the distance parameter in the measured kinematic range.