Dead Cone Effect of Charm Quark Radiation

ZHANG Xiao-Ming; ZHU Yan; HE Yun-Chun; ZHOU Dai-Cui

Chinese Physics C> 2007, Vol. 31> Issue(1) : 43-47

Dead Cone Effect of Charm Quark Radiation

Institute of Particle Physics, Huazhong Normal University, Wuhan 430079, China

Abstract
HTML
Reference
Related

PDF

Abstract：
Radiative energy loss rate of heavy quark traversing through thermal dense matter which is formed in heavy ion collisions has been studied under an assumption of valid factorized method, in which light quark radiative spectrum is used to multiply an dead-cone factor depending on quark mass and energy. The numerical calculated results with energies at RHIC and LHC show that the heavy quark radiation spectra, obtained by extending light quark energy spectrum, are approximately consistent with that calculated under pQCD frame by Djordjecvic-Guulassy. The calculation is simplified by using of factorial dead cone factor and equivalent results can be obtained.

References

[1]

. Biro T S, Müller B, WANG X N. Phys. Lett., 1992, B283:171|1732. Gyulassy M, WANG X N. Nucl. Phys., 1994, B420: 583|6143. WANG X N, Gyulassy M, Plümer M. Phys. Rev., 1995,D51: 3436|34464. Baier R, Dokshitzer Y L, Mueller A H et al. Phys. Lett.,1995, B345: 277|2865. Miklos G, Levai P, Vitev I. Phys. Rev. Lett., 2000, 85:5535|55386. XIANG W C, DING H T, ZHOU D C. Chin. Phys. Lett.,2005, 22: 727. Wiedemann U A, Gyulassy M. Nucl. Phys., 1999, B560:345|3828. WANG E K, WANG X N. Phys. Rev. Lett., 2001, 87:142301(1?)9. ZHANG B W, WANG E K, WANG X N. Phys. Rev. Lett.,2004, 93: 072301(1?)10. XIANG W C, DING H T, ZHOU D C et al. Eur. Phys. J.,2005, A25: 7511. LIU J, MAO Y X, XIANG W C et al. Chinese ScienceBulletin., 2006, 51: 13912. Dokshitzer Y L, Khose V A, Troian S I. J. Phys., 1991,G17: 148113. AcherstaffK et al(PAL Collaboration). Eur. Phys. J., 1999,C7: 369. arXiv:hep/980700414. Bushulic D et al(ALEPH Collaboration). Z. Phys., 1994,C62: 115. Abbiendi G et al(OPAL Collaboration). Arxiv:hep-ex/021003116. Schumm B A, Dokshitzer Y L, Khose V A et al. Phys. Rev.Lett., 1992, 69: 302517. Gieseke S, Stephens P, Webber B. Arxiv:hep-ph/031008318. Wiedemann U A. Nucl. Phys., 2001, A690: 731. arxiv:hep-ph/000824119. Baier R, Dokshitzer Y L, Mueller A H et al. Phys. Rev.,1999, C60: 064902. arXiv:hep-ph/990726720. Baier R, Dokshitzer Y L, Mueller A H et al. Phys. Rev.,2001, C64: 057902. arXiv:hep-ph/010506221. Salgado C A, Wiedemann U A. Phys. Rev., 2003, D69:014008. arXiv:hep-ph/030218422. Dokshitzer Y L, Kharzeev D E. Phys. Lett., 2001, B519:100. arXiv:hep-ph/010620223. Djordjevic M, Gyulassy M. arXiv:Nucl-th/031007624. Armesto N, Salgaldo C A, Wiedemann U A. Phys. Rev.,2004, D69: 114003, 1|1625. Gyulassy M, Levai P, Vitev I. Nucl. Phys., 2001, B594:37126. Djordjevic M, Gyulassy M. Phys. Rev., 2003, C68: 034914

[1]	XIONG Zhao-Hua . Constraining Vectorlike Quark Model From B Radiative Decays. Chinese Physics C, 2006, 30(4): 284-288.
[2]	GAO Pu-Ze , MA Bo-Qiang . Nucleon Strange Asymmetry and the Light Quark Fragmentation Effect. Chinese Physics C, 2005, 29(10): 964-969.
[3]	GONG Xiao-Bo , FENG Bo , WANG Xiu-Lian . A Study on the Effect of Reheating Energy Scale on CMB. Chinese Physics C, 2003, 27(12): 1074-1078.
[4]	JIN Yi , LI Shi-Yuan , XIE Qu-Bing . Fragmentation of Light Initial Quarks into Charm Measons in e⁺e^－ Annihilation. Chinese Physics C, 2003, 27(10): 852-856.
[5]	ZHANG Zong-Ye , YU You-Wen . An Analysis of Quark Effect in Two Baryon System. Chinese Physics C, 2002, 26(7): 712-720.
[6]	GUO Hong-Xia , CHEN Yu-Sheng , ZHANG Yi-Men , ZHOU Hui , HAN Fu-Bin , GUAN Ying , GONG Jian-Chen . Experimental Study of X-Ray Induced Dose Enhancement Effect Using Synchrotron Radiation. Chinese Physics C, 2001, 25(S1): 1-6.
[7]	Dai Lianrong , Shen Pengnian , Zhang Zongye , Yu Youwen . Study of the (N)Channel Coupling Effect in Quark Model. Chinese Physics C, 1998, 22(2): 141-147.
[8]	Bai Ge , Li Jiarong . Study on Radiation of the Rrest color Electric Wave of Quarks in QGP. Chinese Physics C, 1997, 21(11): 1011-1017.
[9]	Hou Zhaoyu , Duan Chungui , Yao Xiaoxia , He Zhenmin . Nuclear Effects on Valence Quark Distributions and Sea Quark Distributions. Chinese Physics C, 1997, 21(7): 639-644.
[10]	Dong Yubing . Study of Radiative Decays of Ground-State Mesons With Screened Potential. Chinese Physics C, 1996, 20(3): 265-269.
[11]	BES Collaboration . Determination of the Total Width of P-wave Charmonium State χ_c0. Chinese Physics C, 1996, 20(12): 1057-1067.
[12]	Liu Bo , Dong Yubing . Color Screeing and Dissociation of Heavy Quarkonium. Chinese Physics C, 1996, 20(2): 153-158.
[13]	Liu Bo , Zhao Weiqin . Contribution Due to Gluon Shadowing and Final-State Interactions to Charmonium/Bottonium Suppression in h-A Collisions. Chinese Physics C, 1994, 18(5): 443-447.
[14]	ZHU Wei . Valence-Quark-Mixing Contribution to Gottfried Sum Rule. Chinese Physics C, 1993, 17(8): 714-716.
[15]	DONG Yu-Bing , YU You-Wen , WANG Ying-Cai . The Color Screening Effect on Heavy Quarkonia. Chinese Physics C, 1993, 17(5): 472-475.
[16]	YUAN Zhu-Shu , HUO Yu-Kun , LIU Jian-Feng , LU Zu-Hui . An Unified Formalism to Study Nonstatistical Effects in Radiative Vapture Reactions. Chinese Physics C, 1991, 15(12): 1086-1093.
[17]	LIU Jian-Feng , Huo Yu-Kun , YUAN Zhu-Shu . Mass Shell and Even-odd Effects in Radiative Capture Reaction. Chinese Physics C, 1991, 15(4): 349-357.
[18]	YU Hong . QUARK AND GLUON CONTENT OF η、η′AND ι(1440),THEIR DECAYS IN TWO PHOTONS AND PRODUCTIONS IN J/ψ RADIATIVE DECAY. Chinese Physics C, 1988, 12(6): 754-760.
[19]	GUO Ke-Zun , DING Lin-Kai . INFLUENCE OF GLUON RADIATION ON THE FORMATION OF CLUSTER PHENOMENA OBSERVED IN EMULSION CHAMBERS. Chinese Physics C, 1985, 9(2): 129-133.
[20]	WANG Zheng-Ben . THE EFFECTS OF THE CHARM STATE IN e-p DEEP INELASTIC SCATTERING. Chinese Physics C, 1984, 8(5): 548-553.

Access

Get Citation

ZHANG Xiao-Ming, ZHU Yan, HE Yun-Chun and ZHOU Dai-Cui. Dead Cone Effect of Charm Quark Radiation[J]. Chinese Physics C, 2007, 31(1): 43-47.

ZHANG Xiao-Ming, ZHU Yan, HE Yun-Chun and ZHOU Dai-Cui. Dead Cone Effect of Charm Quark Radiation[J]. Chinese Physics C, 2007, 31(1): 43-47. shu

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

Received: 2006-04-20
Revised: 2006-07-30

Article Metric

Article Views(3518)
PDF Downloads(791)
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

Dead Cone Effect of Charm Quark Radiation

Corresponding author: ZHOU Dai-Cui,

Institute of Particle Physics, Huazhong Normal University, Wuhan 430079, China

Received Date: 2006-04-20

Accepted Date: 2006-07-30

Available Online: 2007-01-05

Abstract: Radiative energy loss rate of heavy quark traversing through thermal dense matter which is formed in heavy ion collisions has been studied under an assumption of valid factorized method, in which light quark radiative spectrum is used to multiply an dead-cone factor depending on quark mass and energy. The numerical calculated results with energies at RHIC and LHC show that the heavy quark radiation spectra, obtained by extending light quark energy spectrum, are approximately consistent with that calculated under pQCD frame by Djordjecvic-Guulassy. The calculation is simplified by using of factorial dead cone factor and equivalent results can be obtained.

HTML

Reference (1)

Dead Cone Effect of Charm Quark Radiation

Abstract：

References

Access

Article Metrics

Metrics

通讯作者: 陈斌, bchen63@163.com

Email This Article