6533b839fe1ef96bd12a572e
RESEARCH PRODUCT
Measurement of the Azimuthal Angle Dependence of Inclusive Jet Yields in Pb plus Pb Collisions at root s(NN)=2.76 TeV with the ATLAS Detector
Atlas CollaborationSusana Cabrera UrbánMaría Victoria Castillo GiménezMaría José Costa MezquitaFarida FassiAntonio Ferrer SoriaLuca FioriniJuan A. Fuster VerdúCarmen García GarcíaJosé Enrique García NavarroSantiago González De La HozYesenia Hernández JiménezEmilio Higón RodríguezAdrián Irles QuilesMohammed KaciCarlos Lacasta LlácerVicente Lacuesta MiquelLuis March RuizSalvador Martí GarcíaMercedes Miñano MoyaVasiliki MitsouRegina Moles VallsMaría Moreno LlácerElena Oliver GarcíaSebastián Pedraza LópezMaría Teresa Pérez García-estañE. Romero AdamEduardo Ros MartínezJosé Salt CairolsVictoria Sánchez MartínezU. SoldevilaJavier Sánchez MartínezEmma Torró PastorAlberto Valero BiotE. Valladolid GallegoJuan Antonio Valls FerrerMiguel Villaplana PérezMarcel Vossubject
Astrophysics::High Energy Astrophysical PhenomenaFísicaHigh Energy Physics::Experimentdescription
Measurements of the variation of inclusive jet suppression as a function of relative azimuthal angle, Delta phi, with respect to the elliptic event plane provide insight into the path-length dependence of jet quenching. ATLAS has measured the Delta phi dependence of jet yields in 0.14 nb(-1) of root s(NN) = 2.76 TeV Pb + Pb collisions at the LHC for jet transverse momenta p(T) > 45 GeV in different collision centrality bins using an underlying event subtraction procedure that accounts for elliptic flow. The variation of the jet yield with Delta phi was characterized by the parameter, nu(jet)(2), and the ratio of out-of-plane (Delta phi similar to pi/2) to in-plane (Delta phi similar to 0) yields. Nonzero nu(jet)(2) values were measured in all centrality bins for p(T) < 160 GeV. The jet yields are observed to vary by as much as 20% between in-plane and out-of-plane directions.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2013-01-01 |