Jet-like Correlations with Direct-Photon and Neutral-Pion Triggers at $\sqrt{s_{_{NN}}} = 200$ GeV - INSPIRE

DataBETA

Jet-like Correlations with Direct-Photon and Neutral-Pion Triggers at $\sqrt{s_{_{NN}}} = 200$ GeV

STAR

Collaboration

Apr 4, 2016

8 pages

Published in:

Phys.Lett.B 760 (2016) 689-696

Published: Sep 10, 2016

e-Print:

1604.01117 [nucl-ex]

DOI:

10.1016/j.physletb.2016.07.046

Experiments:

BNL-RHIC-STAR

View in:

reference search82 citations

Citations per year

Abstract: (Elsevier)

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.

Note:

9 pages, 7 figures, minor modification, accepted version for publication in Physics Letters B

STAR
Brookhaven RHIC Coll
gold
impact parameter
p p: scattering
photon: trigger
pi: trigger
charged particle
suppression
angular correlation

References(30)

Figures(7)

[1]

Suppression of hadrons with large transverse momentum in central Au+Au collisions at $\sqrt{s_{NN}}$ = 130-GeV

PHENIX

Collaboration

•

K. Adcox
(
- Vanderbilt U.
)

et al.

- Phys.Rev.Lett. 88 (2002) 022301
•
e-Print:
- nucl-ex/0109003
•
DOI:
- 10.1103/PhysRevLett.88.022301

[2]

Centrality dependence of high $p_{T}$ hadron suppression in Au+Au collisions at $\sqrt{s}_{NN}$ = 130-GeV

STAR

Collaboration

•

C. Adler
(
- Frankfurt U.
)

et al.

- Phys.Rev.Lett. 89 (2002) 202301
•
e-Print:
- nucl-ex/0206011
•
DOI:
- 10.1103/PhysRevLett.89.202301

[3]

Disappearance of back-to-back high $p_{T}$ hadron correlations in central Au+Au collisions at $\sqrt{s_{NN}}$ = 200-GeV

STAR

Collaboration

•

C. Adler
(
- Frankfurt U.
)

et al.

- Phys.Rev.Lett. 90 (2003) 082302
•
e-Print:
- nucl-ex/0210033
•
DOI:
- 10.1103/PhysRevLett.90.082302

[4]

Experimental and theoretical challenges in the search for the quark gluon plasma: The STAR Collaboration's critical assessment of the evidence from RHIC collisions

STAR

Collaboration

•

John Adams
(
- Birmingham U.
)

et al.

- Nucl.Phys.A 757 (2005) 102-183
•
e-Print:
- nucl-ex/0501009
•
DOI:
- 10.1016/j.nuclphysa.2005.03.085

[5]

Formation of dense partonic matter in relativistic nucleus-nucleus collisions at RHIC: Experimental evaluation by the PHENIX collaboration

PHENIX

Collaboration

•

K. Adcox
(
- Vanderbilt U.
)

et al.

- Nucl.Phys.A 757 (2005) 184-283
•
e-Print:
- nucl-ex/0410003
•
DOI:
- 10.1016/j.nuclphysa.2005.03.086

[6]

The PHOBOS perspective on discoveries at RHIC

PHOBOS

Collaboration

•

B.B. Back
(
- Argonne
)

et al.

- Nucl.Phys.A 757 (2005) 28-101
•
e-Print:
- nucl-ex/0410022
•
DOI:
- 10.1016/j.nuclphysa.2005.03.084

[7]

Quark gluon plasma and color glass condensate at RHIC? The Perspective from the BRAHMS experiment

BRAHMS

Collaboration

•

I. Arsene
(
- Bucharest U.
)

et al.

- Nucl.Phys.A 757 (2005) 1-27
•
e-Print:
- nucl-ex/0410020
•
DOI:
- 10.1016/j.nuclphysa.2005.02.130

[8]

NonAbelian energy loss at finite opacity

M. Gyulassy
(
- Columbia U.
)
,
P. Levai
(
- Columbia U. and
- Budapest, RMKI
)
,
I. Vitev
(
- Columbia U.
)

- Phys.Rev.Lett. 85 (2000) 5535-5538
•
e-Print:
- nucl-th/0005032
•
DOI:
- 10.1103/PhysRevLett.85.5535

[9]

Jet tomography of Au+Au reactions including multigluon fluctuations

- Phys.Lett.B 538 (2002) 282-288
•
e-Print:
- nucl-th/0112071
•
DOI:
- 10.1016/S0370-2693(02)01990-1

[10]

Jet quenching in the opposite direction of a tagged photon in high-energy heavy ion collisions

- Phys.Rev.Lett. 77 (1996) 231-234
•
e-Print:
- hep-ph/9605213
•
DOI:
- 10.1103/PhysRevLett.77.231

[11]

Medium modification of jet fragmentation in Au + Au collisions at $\sqrt{s_{NN}}= 200$ GeV measured in direct photon-hadron correlations

PHENIX

Collaboration

•

A. Adare
(
- Colorado U.
)

et al.

- Phys.Rev.Lett. 111 (2013) 3, 032301
•
e-Print:
- 1212.3323
•
DOI:
- 10.1103/PhysRevLett.111.032301

[12]

Studying Parton Energy Loss in Heavy-Ion Collisions via Direct-Photon and Charged-Particle Azimuthal Correlations

STAR

Collaboration

•

B.I. Abelev
(
- Illinois U., Chicago
)

et al.

- Phys.Rev.C 82 (2010) 034909
•
e-Print:
- 0912.1871
•
DOI:
- 10.1103/PhysRevC.82.034909

[13]

A Brief Introduction to PYTHIA 8.1

Torbjorn Sjostrand
(
- CERN and
- Lund U.
)
,
Stephen Mrenna
(
- Fermilab
)
,
Peter Z. Skands
(
- CERN and
- Fermilab
)

- Comput.Phys.Commun. 178 (2008) 852-867
•
e-Print:
- 0710.3820
•
DOI:
- 10.1016/j.cpc.2008.01.036

[14]

Towards jet tomography: gamma-hadron correlations

Thorsten Renk
(
- Jyvaskyla U. and
- Helsinki Inst. of Phys.
)

- Phys.Rev.C 74 (2006) 034906
•
e-Print:
- hep-ph/0607166
•
DOI:
- 10.1103/PhysRevC.74.034906

[15]

Tomography of high-energy nuclear collisions with photon-hadron correlations

Hanzhong Zhang
(
- Hua-Zhong Normal U. and
- Hua-Zhong Normal U., LQLP
)
,
J.F. Owens
(
- Florida State U.
)
,
Enke Wang
(
- Hua-Zhong Normal U. and
- Hua-Zhong Normal U., LQLP
)
,
Xin-Nian Wang
(
)

- Phys.Rev.Lett. 103 (2009) 032302
•
e-Print:
- 0902.4000
•
DOI:
- 10.1103/PhysRevLett.103.032302

[16]

Experimental studies of di-jets in Au + Au collisions using angular correlations with respect to back-to-back leading hadrons

STAR

Collaboration

•

L. Adamczyk
(
- AGH-UST, Cracow
)

et al.

- Phys.Rev.C 87 (2013) 4, 044903
•
e-Print:
- 1212.1653
•
DOI:
- 10.1103/PhysRevC.87.044903

[17]

gamma-hadron correlations as a tool to trace the flow of energy lost from hard partons in heavy-ion collisions

Thorsten Renk
(
- Jyvaskyla U. and
- Helsinki Inst. of Phys.
)

- Phys.Rev.C 80 (2009) 014901
•
e-Print:
- 0904.3806
•
DOI:
- 10.1103/PhysRevC.80.014901

[18]

Jet-Hadron Correlations in $\sqrt{s_{NN}} = 200$ GeV $p+p$ and Central $Au+Au$ Collisions

STAR

Collaboration

•

L. Adamczyk
(
- AGH-UST, Cracow
)

et al.

- Phys.Rev.Lett. 112 (2014) 12, 122301
•
e-Print:
- 1302.6184
•
DOI:
- 10.1103/PhysRevLett.112.122301

[19]

Parton-to-Pion Fragmentation Reloaded

Daniel de Florian
(
- Buenos Aires U.
)
,
R. Sassot
(
- Buenos Aires U.
)
,
Manuel Epele
(
- La Plata U. and
- Buenos Aires, CONICET
)
,
Roger J. Hernández-Pinto
(
- Buenos Aires U. and
- Valencia U., IFIC
)
,
Marco Stratmann
(
- Tubingen U.
)

- Phys.Rev.D 91 (2015) 1, 014035
•
e-Print:
- 1410.6027
•
DOI:
- 10.1103/PhysRevD.91.014035

[20]

Hadron Fragmentation Inside Jets in Hadronic Collisions

Tom Kaufmann
(
- Tubingen U.
)
,
Asmita Mukherjee
(
- Indian Inst. Tech., Mumbai
)
,
Werner Vogelsang
(
- Tubingen U.
)

- Phys.Rev.D 92 (2015) 5, 054015,
- Phys.Rev.D 101 (2020) 7, 079901 (erratum)
•
e-Print:
- 1506.01415
•
DOI:
- 10.1103/PhysRevD.92.054015

[21]

Global analysis of fragmentation functions for pions and kaons and their uncertainties

Daniel de Florian
(
- Buenos Aires U.
)
,
Rodolfo Sassot
(
- Buenos Aires U.
)
,
Marco Stratmann
(
- Wako, RIKEN
)

- Phys.Rev.D 75 (2007) 114010
•
e-Print:
- hep-ph/0703242
•
DOI:
- 10.1103/PhysRevD.75.114010

[22]

The STAR barrel electromagnetic calorimeter

STAR

Collaboration

•

M. Beddo
(
- Argonne
)

et al.

- Nucl.Instrum.Meth.A 499 (2003) 725-739
•
DOI:
- 10.1016/S0168-9002(02)01970-8

[23]

The Star time projection chamber: A Unique tool for studying high multiplicity events at RHIC

et al.

- Nucl.Instrum.Meth.A 499 (2003) 659-678
•
e-Print:
- nucl-ex/0301015
•
DOI:
- 10.1016/S0168-9002(02)01964-2

[24]

Direct-photon+hadron correlations to study parton energy loss with the STAR experiment

STAR

Collaboration

•

Nihar Ranjan Sahoo
(
- Texas A-M, Cyclotron Inst.
)

for the collaboration.

- Nucl.Phys.A 956 (2016) 621-624
•
e-Print:
- 1512.08782
•
DOI:
- 10.1016/j.nuclphysa.2016.02.071

[25]

Decomposition of harmonic and jet contributions to particle-pair correlations at ultra-relativistic energies

et al.

- Phys.Rev.C 72 (2005) 011902
•
e-Print:
- nucl-ex/0501025
•
DOI:
- 10.1103/PhysRevC.72.011902

1-25 of 30
1
2
25 / page