Directed Flow In Heavy Ion Collisions at sqrt{s_NN}=2.76 TeV

dc.contributor.advisorMignerey, Alice Len_US
dc.contributor.authorGomez, Jaime Arturoen_US
dc.contributor.departmentChemical Physicsen_US
dc.contributor.publisherDigital Repository at the University of Marylanden_US
dc.contributor.publisherUniversity of Maryland (College Park, Md.)en_US
dc.date.accessioned2015-09-18T05:44:44Z
dc.date.available2015-09-18T05:44:44Z
dc.date.issued2015en_US
dc.description.abstractThe directed flow of charged particles at midrapidity is measured in Pb-Pb collisions at $\sqrt{s_{NN}}=2.76$ TeV relative to the collision Event Plane, defined by the participant plane using various subdetectors. The rapidity-even directed flow component is measured for the first time using an Event Plane weighted by the transverse momentum of the emitted charged hadrons and found to be largely independent of pseudorapidity with a sign change at transverse momenta $p_{T}$ between 1.2 and $1.7$  GeV/c. These results are compared to measurements made by two other experiments at the LHC. Combined with the observation from ALICE of a vanishing rapidity-even $p_{T}$ shift along the spectator deflection plane is strong evidence for dipole like initial density fluctuations in the overlap zone of the nuclei. These observations open new possibilities for investigation of the initial conditions in heavy-ion collisions with spectator nucleons.en_US
dc.identifierhttps://doi.org/10.13016/M2VW6N
dc.identifier.urihttp://hdl.handle.net/1903/16987
dc.language.isoenen_US
dc.subject.pqcontrolledPhysicsen_US
dc.subject.pqcontrolledNuclear chemistryen_US
dc.subject.pquncontrolledCMSen_US
dc.subject.pquncontrolledDirected Flowen_US
dc.subject.pquncontrolledFlowen_US
dc.subject.pquncontrolledHeavy Ionsen_US
dc.subject.pquncontrolledv1en_US
dc.titleDirected Flow In Heavy Ion Collisions at sqrt{s_NN}=2.76 TeVen_US
dc.typeDissertationen_US

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