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Azimuthal Anisotropy Measurement of Neutral Pion and Inclusive Charge Hadron Production in Au+Au Collisions at sqrt(s_NN) = 62 and 39 GeV

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dc.contributor.advisor Lacey, Roy , Jia, Jiangyong en_US
dc.contributor.author GONG, XIAOYANG en_US
dc.contributor.other Department of Physics en_US
dc.date.accessioned 2013-05-22T17:34:32Z
dc.date.accessioned 2015-04-24T14:46:34Z
dc.date.available 2013-05-22T17:34:32Z
dc.date.available 2015-04-24T14:46:34Z
dc.date.issued 2012-12-01 en_US
dc.identifier GONG_grad.sunysb_0771E_11141 en_US
dc.identifier.uri http://hdl.handle.net/1951/59652 en_US
dc.identifier.uri http://hdl.handle.net/11401/71225 en_US
dc.description 218 pg. en_US
dc.description.abstract The harmonic flow coefficients vn with n=2,3,4 are measured for neutral pions and inclusive charged hadrons in Au-Au collisions at sqrt(s_NN) = 62 and 39 GeV with the PHENIX detector at the Relativistic Heavy Ion Collider (RHIC). These vn coefficients characterize the anisotropy of particle productions in the azimuth at different angular scale, which are sensitive to the transport properties and initial spatial asymmetries of the hot and dense medium created in these collisions. Significant values of vn are observed for neutral pions (for n = 2) and inclusive charge hadron (for n = 2, 3, 4) at both collision energies, spanning broad ranges of transverse momentum pT and collision centrality. These results are compared to measurements at other beam energies from RHIC, and to the recent results at sqrt(s_NN) = 2760 GeV from the Large Hadron Collider (LHC). The magnitudes of the vn are found to be similar over the range of sqrt(s_NN) =39-2760 GeV. However, the v2 values for inclusive charge hadron are found to decrease significantly for collisions at sqrt(s_NN) < 39 GeV, and essentially reaches 0 at sqrt(s_NN) around 3 GeV. These results provide important input for studying the transport properties and the initial geometry profiles of the hot and dense matter created in Au+Au collisions at sqrt(s_NN) = 62 and 39 GeV. They also serve as important components in the beam energy scan of vn, which might help locate the critical point of the QCD phase diagram. en_US
dc.description.sponsorship This work is sponsored by the Stony Brook University Graduate School in compliance with the requirements for completion of degree. en_US
dc.format Monograph en_US
dc.format.medium Electronic Resource en_US
dc.language.iso en_US en_US
dc.publisher The Graduate School, Stony Brook University: Stony Brook, NY. en_US
dc.subject.lcsh Physics en_US
dc.subject.other Au+Au Collisions, Azimuthal Anisotropy, Energy Scan, Inclusive Charge Hadron, Neutral Pion en_US
dc.title Azimuthal Anisotropy Measurement of Neutral Pion and Inclusive Charge Hadron Production in Au+Au Collisions at sqrt(s_NN) = 62 and 39 GeV en_US
dc.type Dissertation en_US
dc.mimetype Application/PDF en_US
dc.contributor.committeemember Kharzeev, Dmitri en_US
dc.contributor.committeemember Drees, Axel en_US
dc.contributor.committeemember Fernandez-Serra, Maria Victoria en_US
dc.contributor.committeemember Ruan, Lijuan en_US

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