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Jet modification via π0 -hadron correlations in Au+Au collisions at SNN =200 GeV

Abdulameer, N.J. ; Gustafsson, H.-A. LU ; Haslum, E. LU ; Oskarsson, A. LU ; Rosendahl, S.S.E. LU ; Silvermyr, D. LU orcid ; Stenlund, E. LU and Zou, L. (2024) In Physical Review C 110(4).
Abstract
High-momentum two-particle correlations are a useful tool for studying jet-quenching effects in the quark-gluon plasma. Angular correlations between neutral-pion triggers and charged hadrons with transverse momenta in the range 4-12 GeV/c and 0.5-7 GeV/c, respectively, have been measured by the PHENIX experiment in 2014 for Au+Au collisions at sNN=200 GeV. Suppression is observed in the yield of high-momentum jet fragments opposite the trigger particle, which indicates jet suppression stemming from in-medium partonic energy loss, while enhancement is observed for low-momentum particles. The ratio and differences between the yield in Au+Au collisions and p+p collisions, IAA and ΔAA, as a function of the trigger-hadron azimuthal separation,... (More)
High-momentum two-particle correlations are a useful tool for studying jet-quenching effects in the quark-gluon plasma. Angular correlations between neutral-pion triggers and charged hadrons with transverse momenta in the range 4-12 GeV/c and 0.5-7 GeV/c, respectively, have been measured by the PHENIX experiment in 2014 for Au+Au collisions at sNN=200 GeV. Suppression is observed in the yield of high-momentum jet fragments opposite the trigger particle, which indicates jet suppression stemming from in-medium partonic energy loss, while enhancement is observed for low-momentum particles. The ratio and differences between the yield in Au+Au collisions and p+p collisions, IAA and ΔAA, as a function of the trigger-hadron azimuthal separation, Δφ, are measured for the first time at the BNL Relativistic Heavy Ion Collider. These results better quantify how the yield of low-pT associated hadrons is enhanced at wide angle, which is crucial for studying energy loss as well as medium-response effects. © 2024 American Physical Society. (Less)
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author
; ; ; ; ; ; and
author collaboration
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Physical Review C
volume
110
issue
4
article number
044901
publisher
American Physical Society
external identifiers
  • scopus:85205814531
ISSN
2469-9985
DOI
10.1103/PhysRevC.110.044901
language
English
LU publication?
yes
id
8324b92f-4af1-453e-8a6a-e811d261b699
date added to LUP
2025-08-29 12:52:30
date last changed
2025-08-29 12:53:21
@article{8324b92f-4af1-453e-8a6a-e811d261b699,
  abstract     = {{High-momentum two-particle correlations are a useful tool for studying jet-quenching effects in the quark-gluon plasma. Angular correlations between neutral-pion triggers and charged hadrons with transverse momenta in the range 4-12 GeV/c and 0.5-7 GeV/c, respectively, have been measured by the PHENIX experiment in 2014 for Au+Au collisions at sNN=200 GeV. Suppression is observed in the yield of high-momentum jet fragments opposite the trigger particle, which indicates jet suppression stemming from in-medium partonic energy loss, while enhancement is observed for low-momentum particles. The ratio and differences between the yield in Au+Au collisions and p+p collisions, IAA and ΔAA, as a function of the trigger-hadron azimuthal separation, Δφ, are measured for the first time at the BNL Relativistic Heavy Ion Collider. These results better quantify how the yield of low-pT associated hadrons is enhanced at wide angle, which is crucial for studying energy loss as well as medium-response effects.  © 2024 American Physical Society.}},
  author       = {{Abdulameer, N.J. and Gustafsson, H.-A. and Haslum, E. and Oskarsson, A. and Rosendahl, S.S.E. and Silvermyr, D. and Stenlund, E. and Zou, L.}},
  issn         = {{2469-9985}},
  language     = {{eng}},
  number       = {{4}},
  publisher    = {{American Physical Society}},
  series       = {{Physical Review C}},
  title        = {{Jet modification via π0 -hadron correlations in Au+Au collisions at SNN =200 GeV}},
  url          = {{http://dx.doi.org/10.1103/PhysRevC.110.044901}},
  doi          = {{10.1103/PhysRevC.110.044901}},
  volume       = {{110}},
  year         = {{2024}},
}