Skip to main content
eScholarship
Open Access Publications from the University of California

Jet-like correlations with direct-photon and neutral-pion triggers at sNN=200 GeV

  • Author(s): Adamczyk, L
  • Adkins, JK
  • Agakishiev, G
  • Aggarwal, MM
  • Ahammed, Z
  • Alekseev, I
  • Anderson, DM
  • Aparin, A
  • Arkhipkin, D
  • Aschenauer, EC
  • Ashraf, MU
  • Attri, A
  • Averichev, GS
  • Bai, X
  • Bairathi, V
  • Bellwied, R
  • Bhasin, A
  • Bhati, AK
  • Bhattarai, P
  • Bielcik, J
  • Bielcikova, J
  • Bland, LC
  • Bordyuzhin, IG
  • Bouchet, J
  • Brandenburg, JD
  • Brandin, AV
  • Bunzarov, I
  • Butterworth, J
  • Caines, H
  • Calderón de la Barca Sánchez, M
  • Campbell, JM
  • Cebra, D
  • Chakaberia, I
  • Chaloupka, P
  • Chang, Z
  • Chatterjee, A
  • Chattopadhyay, S
  • Chen, X
  • Chen, JH
  • Cheng, J
  • Cherney, M
  • Christie, W
  • Contin, G
  • Crawford, HJ
  • Das, S
  • De Silva, LC
  • Debbe, RR
  • Dedovich, TG
  • Deng, J
  • Derevschikov, AA
  • di Ruzza, B
  • Didenko, L
  • Dilks, C
  • Dong, X
  • Drachenberg, JL
  • Draper, JE
  • Du, CM
  • Dunkelberger, LE
  • Dunlop, JC
  • Efimov, LG
  • Engelage, J
  • Eppley, G
  • Esha, R
  • Evdokimov, O
  • Eyser, O
  • Fatemi, R
  • Fazio, S
  • Federic, P
  • Fedorisin, J
  • Feng, Z
  • Filip, P
  • Fisyak, Y
  • Flores, CE
  • Fulek, L
  • Gagliardi, CA
  • Garand, D
  • Geurts, F
  • Gibson, A
  • Girard, M
  • Greiner, L
  • Grosnick, D
  • Gunarathne, DS
  • Guo, Y
  • Gupta, S
  • Gupta, A
  • Guryn, W
  • Hamad, AI
  • Hamed, A
  • Haque, R
  • Harris, JW
  • He, L
  • Heppelmann, S
  • Heppelmann, S
  • Hirsch, A
  • Hoffmann, GW
  • Horvat, S
  • Huang, T
  • Huang, B
  • Huang, X
  • Huang, HZ
  • et al.
Abstract

© 2016 The Author(s) Azimuthal correlations of charged hadrons with direct-photon (γdir) and neutral-pion (π0) trigger particles are analyzed in central Au+Au and minimum-bias p+p collisions at sNN=200 GeV in the STAR experiment. The charged-hadron per-trigger yields at mid-rapidity from central Au+Au collisions are compared with p+p collisions to quantify the suppression in Au+Au collisions. The suppression of the away-side associated-particle yields per γdirtrigger is independent of the transverse momentum of the trigger particle (pTtrig), whereas the suppression is smaller at low transverse momentum of the associated charged hadrons (pTassoc). Within uncertainty, similar levels of suppression are observed for γdirand π0triggers as a function of zT(≡pTassoc/pTtrig). The results are compared with energy-loss-inspired theoretical model predictions. Our studies support previous conclusions that the lost energy reappears predominantly at low transverse momentum, regardless of the trigger energy.

Many UC-authored scholarly publications are freely available on this site because of the UC Academic Senate's Open Access Policy. Let us know how this access is important for you.

Main Content
Current View