Elliptic flow of electrons from heavy-flavor hadron decays in Au + Au collisions at √sNN =200, 62.4, and 39 GeV
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Pre-printDate
2017-03-13Author
Adamczyk, LAdkins, JK
Agakishiev, G
Aggarwal, MM
Ahammed, Z
Ajitanand, NN
Alekseev, I
Anderson, DM
Aoyama, R
Aparin, A
Arkhipkin, D
Aschenauer, EC
Ashraf, MU
Attri, A
Averichev, GS
Bai, X
Bairathi, V
Behera, A
Bellwied, R
Bhasin, A
Bhati, AK
Bhattarai, P
Bielcik, J
Bielcikova, J
Bland, LC
Bordyuzhin, IG
Bouchet, J
Brandenburg, JD
Brandin, AV
Brown, D
Bunzarov, I
Butterworth, J
Caines, H
Calderón De La Barca Sánchez, M
Campbell, JM
Cebra, D
Chakaberia, I
Chaloupka, P
Chang, Z
Chankova-Bunzarova, N
Chatterjee, A
Chattopadhyay, S
Chen, X
Chen, JH
Chen, X
Cheng, J
Cherney, M
Christie, W
Contin, G
Crawford, HJ
Das, S
De Silva, LC
Debbe, RR
Dedovich, TG
Deng, J
Derevschikov, AA
Didenko, L
Dilks, C
Dong, X
Drachenberg, JL
Draper, JE
Dunkelberger, LE
Dunlop, JC
Efimov, LG
Elsey, N
Engelage, J
Eppley, G
Esha, R
Esumi, S
Evdokimov, O
Ewigleben, J
Eyser, O
Fatemi, R
Fazio, S
Federic, P
Federicova, P
Fedorisin, J
Feng, Z
Filip, P
Finch, E
Fisyak, Y
Flores, CE
Fulek, L
Gagliardi, CA
Garand, D
Geurts, F
Gibson, A
Girard, M
Grosnick, D
Gunarathne, DS
Guo, Y
Gupta, S
Gupta, A
Guryn, W
Hamad, AI
Hamed, A
Harlenderova, A
Harris, JW
He, L
Heppelmann, S
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http://hdl.handle.net/20.500.12613/4930
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10.1103/PhysRevC.95.034907Abstract
© 2017 American Physical Society. We present measurements of elliptic flow (v2) of electrons from the decays of heavy-flavor hadrons (eHF) by the STAR experiment. For Au+Au collisions at sNN=200 GeV we report v2, for transverse momentum (pT) between 0.2 and 7 GeV/c, using three methods: the event plane method (v2{EP}), two-particle correlations (v2{2}), and four-particle correlations (v2{4}). For Au+Au collisions at sNN=62.4 and 39 GeV we report v2{2} for pT<2GeV/c. v2{2} and v2{4} are nonzero at low and intermediate pT at 200 GeV, and v2{2} is consistent with zero at low pT at other energies. The v2{2} at the two lower beam energies is systematically lower than at sNN=200 GeV for pT<1GeV/c. This difference may suggest that charm quarks interact less strongly with the surrounding nuclear matter at those two lower energies compared to sNN=200 GeV.Citation to related work
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http://dx.doi.org/10.34944/dspace/4912