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

Adamczyk, L.
•
Adkins, J. K.
•
Agakishiev, G.
altro
Zyzak, M.
2016
  • journal article

Periodico
PHYSICS LETTERS. SECTION B
Abstract
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.
DOI
10.1016/j.physletb.2016.07.046
WOS
WOS:000382890500103
Archivio
http://hdl.handle.net/11368/2941928
info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-84979920374
http://www.sciencedirect.com/science/journal/03702693
Diritti
open access
license:creative commons
license uri:http://creativecommons.org/licenses/by/4.0/
FVG url
https://arts.units.it/bitstream/11368/2941928/1/1-s2.0-S0370269316303872-main_jet_like.pdf
Soggetti
  • Nuclear and High Ener...

  • jet

  • RHIC

  • STAR

  • quark gluon plasma

Scopus© citazioni
39
Data di acquisizione
Jun 14, 2022
Vedi dettagli
Web of Science© citazioni
36
Data di acquisizione
Mar 25, 2024
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