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

Publication ,  Journal Article
Adamczyk, L; Adkins, JK; Agakishiev, G; Aggarwal, MM; Ahammed, Z; Alekseev, I; Anderson, DM; Aparin, A; Arkhipkin, D; Aschenauer, EC; Attri, A ...
Published in: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
September 10, 2016
Published version (DOI)

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 γdir trigger 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 γdir and π0 triggers 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.

Duke Scholars

Anselm G. Vossen
Author Anselm G. Vossen Physics
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Published In

Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

DOI

10.1016/j.physletb.2016.07.046

ISSN

0370-2693

Publication Date

September 10, 2016

Volume

760

Start / End Page

689 / 696

Related Subject Headings

  • Nuclear & Particles Physics
  • 51 Physical sciences
  • 49 Mathematical sciences
  • 0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics
  • 0201 Astronomical and Space Sciences
  • 0105 Mathematical Physics
 

Citation

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Adamczyk, L., Adkins, J. K., Agakishiev, G., Aggarwal, M. M., Ahammed, Z., Alekseev, I., … Huang, H. Z. (2016). Jet-like correlations with direct-photon and neutral-pion triggers at sNN=200 GeV. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 760, 689–696. https://doi.org/10.1016/j.physletb.2016.07.046
Adamczyk, L., J. K. Adkins, G. Agakishiev, M. M. Aggarwal, Z. Ahammed, I. Alekseev, D. M. Anderson, et al. “Jet-like correlations with direct-photon and neutral-pion triggers at sNN=200 GeV.” Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics 760 (September 10, 2016): 689–96. https://doi.org/10.1016/j.physletb.2016.07.046.
Adamczyk L, Adkins JK, Agakishiev G, Aggarwal MM, Ahammed Z, Alekseev I, et al. Jet-like correlations with direct-photon and neutral-pion triggers at sNN=200 GeV. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics. 2016 Sep 10;760:689–96.
Adamczyk, L., et al. “Jet-like correlations with direct-photon and neutral-pion triggers at sNN=200 GeV.” Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, vol. 760, Sept. 2016, pp. 689–96. Scopus, doi:10.1016/j.physletb.2016.07.046.
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, Hirsch A, Hoffmann GW, Horvat S, Huang T, Huang B, Huang X, Huang HZ. Jet-like correlations with direct-photon and neutral-pion triggers at sNN=200 GeV. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics. 2016 Sep 10;760:689–696.
Journal cover image

Published In

Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

DOI

10.1016/j.physletb.2016.07.046

ISSN

0370-2693

Publication Date

September 10, 2016

Volume

760

Start / End Page

689 / 696

Related Subject Headings

  • Nuclear & Particles Physics
  • 51 Physical sciences
  • 49 Mathematical sciences
  • 0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics
  • 0201 Astronomical and Space Sciences
  • 0105 Mathematical Physics