Photon production in relativistic heavy ion collisions with equilibrium and non-equilibrium QGP

FU Yong-Ping; LI Yun-De

doi:10.1088/1674-1137/34/2/006

Chinese Physics C> 2010, Vol. 34> Issue(2) : 186-191 DOI: 10.1088/1674-1137/34/2/006

Photon production in relativistic heavy ion collisions with equilibrium and non-equilibrium QGP

FU Yong-Ping ^, ,
LI Yun-De

Abstract
HTML
Reference
Related

PDF

Abstract：
We consider the production sources of prompt and thermal photons which include the contribution of gluons in relativistic heavy ion collisions. Considering in our calculation the shadowing and iso-spin effects of the nucleus we can properly estimate the prompt photon production. We develop a new thermal jet-photon conversion mechanism which plays a vital role in the low transverse momentum region. The effect of the non-equilibrium quark-gluon plasma
enhances the contribution of thermal photons.

References

[1]

. Alam J, Srivastava D K et al. Phys. Rev. D, 1993, 48: 11172. Fries R J,Müller B et al. Phys. Rev. Lett., 2003, 90: 1323013. Kapusta J, Lichard P et al. Nucl. Phys. A, 1992, 544: 4854. Ruuskanen P V. Nucl. Phys. A, 1992, 544: 1695. Hung C M, Shuryak E. Phys. Rev. C, 1998, 57: 18916. Shuryak E and Xiong L. Phys. Rev. lett., 1993, 70: 22417. Bass S A,Müller B et al. Phys. Rev. Lett., 2003, 90: 0823018. Kapusta J, Lichard P et al. Phys. Rev. D, 1991, 44: 27749. Srivastava D K and Sinha B. Phys. Rev. Lett., 1994, 73:242110. Chatterjee R, Frodermann E S et al. Phys. Rev. Lett., 2006,96: 20230211. Jeon S, Marian J J et al. Nucl. Phys. A, 2003, 715: 79512. Kolb P F, Sollfrank J et al. Phys. Rev. C, 2000, 62: 05490913. Adler S S et al. Phys. Rev. Lett., 2005, 94: 232301; AdlerS S et al. Phys. Rev. Lett., 2003, 91: 07230114. Albrecht R et al. Phys. Rev. Lett., 1996, 76: 350615. Busching H et al. Nucl. Phys. A, 2006, 774: 10316. Bjorken J D. Phys. Rev. D, 1983, 27: 14017. Huang K. Statistical Mechanics. New York: John Wileyand Sons, 1987; Landau L D and Lifshitz E M. Statistical Physics. Oxford: Pergamon Press, 1980.18. Srivastava D K, Gale C et al. Phys. Rev. C, 2003, 67:03490319. Turbide S, Rapp R et al. Phys. Rev. C, 2004, 69: 01490320. Kapusta J, Mclerran L D et al. Phys. Lett. B, 1992, 283:14521. Turbide S, Gale C et al. Phys. Rev. C, 2005, 72: 014906;Zhang Q H. hep-ph/010624222. Adams J et al. Phys. Rev. Lett., 2003, 91: 17230223. Adler C et al. Phys. Rev. Lett., 2003, 90: 08230224. Renk T. Phys. Rev. C, 2006, 74: 03490625. Berger E L, Braaten E et al. Nucl. Phys. B, 1984, 239: 5226. Gluck M, Reya E et al. Z. Phys. C, 1992, 53: 12727. Qiu J. Nucl. Phys. B, 1987, 291: 74628. Jeon S, Marian J J et al. Phys. Lett. B, 2003, 562: 4529. Aurenche P, Fontannaz M et al. Phys. Rev. D, 2006, 73:09400730. Chakrabarty S, Alam J et al. Phys. Rev. D, 1992, 46: 380231. Combridge B L, Kripfganz J et al. Phys. Lett. B, 1977, 70:23432. Kniehl B A, Kramer G et al. Nucl. Phys. B, 2000, 582: 51433. Cahn R N. Phys. Rev. D, 1973, 7: 24734. Gelis F, Niemi H et al. J. Phys. G: Nucl. Part. Phys., 2004,30: S1031

[1]	Rui-Qin Wang , Jun Song , Gang Li , Feng-Lan Shao . Different production sources of light nuclei inultra-relativistic heavy-ion collisions. Chinese Physics C, 2019, 43(2): 024101. doi: 10.1088/1674-1137/43/2/024101
[2]	Feng-Lan Shao , Jun Song , Rui-Qin Wang , Mao-Sheng Zhang . Energy dependence of resonance production in relativistic heavy ion collisions. Chinese Physics C, 2017, 41(1): 014101. doi: 10.1088/1674-1137/41/1/014101
[3]	Yang Zhong , Chun-Bin Yang , Xu Cai , Sheng-Qin Feng . Chiral electric field in relativistic heavy-ion collisions at energies available at the BNL Relativistic Heavy Ion Collider and at the CERN Large Hadron Collider. Chinese Physics C, 2016, 40(8): 084103. doi: 10.1088/1674-1137/40/8/084103
[4]	LI Lin , LI Na , WU Yuan-Fang . Azimuthal distributions of radial momentum and velocity in relativistic heavy ion collisions. Chinese Physics C, 2012, 36(5): 423-428. doi: 10.1088/1674-1137/36/5/007
[5]	ZHANG Song , CHEN Jin-Hui , MA Yu-Gang , XU Zhang-Bu , CAI Xiang-Zhou , MA Guo-Liang , ZHONG Chen . Hypertriton and light nuclei production at Λ-production subthreshold energy in heavy-ion collisions. Chinese Physics C, 2011, 35(8): 741-746. doi: 10.1088/1674-1137/35/8/008
[6]	LI De-Sheng , TIAN Feng-Ge , CHEN Gang . Study on the method of mini-jet identification in relativistic heavy ion collisions. Chinese Physics C, 2011, 35(9): 833-837. doi: 10.1088/1674-1137/35/9/009
[7]	LE Tian , XU Ming-Mei , WU Yuan-Fang . Centrality and energy dependence of rapidity correlation patterns in relativistic heavy ion collisions. Chinese Physics C, 2011, 35(3): 259-263. doi: 10.1088/1674-1137/35/3/009
[8]	WANG Yang-Yang , ZHAO Lin-Jie , YUAN Zhong-Sheng , ZHANG Dan-Dan , FANG Wei , XU Ming-Mei . System size in relativistic heavy ion collisions. Chinese Physics C, 2011, 35(3): 264-268. doi: 10.1088/1674-1137/35/3/010
[9]	FENG Xiu-Mei , ZHANG Ben-Wei . Drell-Yan dilepton production in relativistic heavy-ion collisions at RHIC. Chinese Physics C, 2011, 35(9): 829-832. doi: 10.1088/1674-1137/35/9/008
[10]	FU Yong-Ping , LI Yun-De . Large transverse momentum dilepton production in heavy ion collisions with two-photon processes. Chinese Physics C, 2011, 35(2): 109-112. doi: 10.1088/1674-1137/35/2/001
[11]	WANG Mei-Juan , LIU Lian-Shou , WU Yuan-Fang . Trace initial interaction from final state observable in relativistic heavy ion collisions. Chinese Physics C, 2009, 33(1): 36-41. doi: 10.1088/1674-1137/33/1/008
[12]	KE Hong-Wei , XU Ming-Mei , LIU Lian-Shou . Critical phenomena in a disc-percolation model and their application to relativistic heavy ion collisions. Chinese Physics C, 2009, 33(10): 854-859. doi: 10.1088/1674-1137/33/10/007
[13]	ZHOU Li-Juan , ZHANG Ben-Wei , ZHANG Han-Zhong , WANG En-Ke . Jet-photon conversion with energy loss in heavy ion collisions. Chinese Physics C, 2009, 33(3): 201-204. doi: 10.1088/1674-1137/33/3/008
[14]	S.Uehara (for the Belle Collaboration) . Study of ππ production in two-photon collisions at Belle. Chinese Physics C, 2008, 32(6): 499-503. doi: 10.1088/1674-1137/32/6/019
[15]	YANG Fang , ZHOU Yun-Qing , LI Jia-Rong . Distribution Function for Fermions in Quasi-equilibrium QGP. Chinese Physics C, 2003, 27(1): 58-62.
[16]	Chen Liewen , Zhang Xiaodong , Ge Lingxiao . Isospin Effects on Pre-Equilibrium Nucleon Emission in Heavy-Ion Collisions. Chinese Physics C, 1997, 21(S1): 465-470.
[17]	Wang Chengshing , Zhao Qiang , Tang Ping . Glauber Theory on Transverse Energy Distributions in Ultra-Relativistic Heavy Ion Collisions. Chinese Physics C, 1996, 20(S2): 149-154.
[18]	Liu Fuhu , Sun Hancheng . Transverse Momentum and the Pseudorapidity Distributions of Negative Particles in Relativistic Heavy Ion Collisions. Chinese Physics C, 1995, 19(S1): 21-26.
[19]	Zhao Weiqin , Liu Bo . Transverse Energy Dependence of Yield of Charmonium Production in Relativistic Heavy Ion Collisions. Chinese Physics C, 1995, 19(S1): 97-101.
[20]	Soren P. Sorensen , Zhao Weiqin . Influence of Finite Collision Time on Energy Density in Relativistic Heavy Ion Collisions. Chinese Physics C, 1993, 17(S1): 89-93.

Access

Get Citation

FU Yong-Ping and LI Yun-De. Photon production in relativistic heavy ion collisions with equilibrium and non-equilibrium QGP[J]. Chinese Physics C, 2010, 34(2): 186-191. doi: 10.1088/1674-1137/34/2/006

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

Received: 2009-03-23
Revised: 2009-07-22

Article Metric

Article Views(2714)
PDF Downloads(670)
Cited by(0)

Policy on re-use

To reuse of subscription content published by CPC, the users need to request permission from CPC, unless the content was published under an Open Access license which automatically permits that type of reuse.

通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

Photon production in relativistic heavy ion collisions with equilibrium and non-equilibrium QGP

Corresponding author: FU Yong-Ping,

Received Date: 2009-03-23

Accepted Date: 2009-07-22

Available Online: 2010-02-05

Abstract:

We consider the production sources of prompt and thermal photons which include the contribution of gluons in relativistic heavy ion collisions. Considering in our calculation the shadowing and iso-spin effects of the nucleus we can properly estimate the prompt photon production. We develop a new thermal jet-photon conversion mechanism which plays a vital role in the low transverse momentum region. The effect of the non-equilibrium quark-gluon plasma
enhances the contribution of thermal photons.

HTML

Reference (1)

Photon production in relativistic heavy ion collisions with equilibrium and non-equilibrium QGP

Abstract：

References

Access

Article Metrics

Metrics

通讯作者: 陈斌, bchen63@163.com

Email This Article