Effect of Strong Electric Field on the Evolution of Charmonium in Quark Gluon Plasma

WU Biaogang; CHEN Baoyi; ZHAO Xingbo

doi:10.11804/NuclPhysRev.36.03.278

In ultra-relativistic heavy-ion collisions, the strong electric field can be produced by the colliding nuclei. The magnitude of the electric field E is on the order of eE~m_π² at the early stage of the collision. In quark gluon plasma (QGP), such a strong electric field can have a significant impact on the evolution of charmonia. We employ the time-dependent Schrödinger equation to study the evolution of charmonium states in the strong electric field generated by the moving charges. The electric field can result in transitions between charmonium states with different angular momenta. In order to see this effect, we make comparisons between the yields of J/ψ, ψ' and χ_c with and without the electric field. The results show that the electric field generated by the moving heavy ions induces dissociation of J/ψ. In the meantime, χ_c is generated via the transition from J/ψ by the electric field.

Effect of Strong Electric Field on the Evolution of Charmonium in Quark Gluon Plasma

1. Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China;

2. School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing 100049, China;

3. Department of Physics, Tianjin University, Tianjin 300350, China

Funds: National Natural Science Foundation of China(11705125); New faculty startup funding by Institute of Modern Physics, Chinese Academy of Sciences

Received Date: 2019-03-25

Rev Recd Date: 2019-05-05

Publish Date: 2019-09-20

Key words:

charmonium /
strong electric field /
QGP /
Schrö

Abstract: In ultra-relativistic heavy-ion collisions, the strong electric field can be produced by the colliding nuclei. The magnitude of the electric field E is on the order of eE~m_π² at the early stage of the collision. In quark gluon plasma (QGP), such a strong electric field can have a significant impact on the evolution of charmonia. We employ the time-dependent Schrödinger equation to study the evolution of charmonium states in the strong electric field generated by the moving charges. The electric field can result in transitions between charmonium states with different angular momenta. In order to see this effect, we make comparisons between the yields of J/ψ, ψ' and χ_c with and without the electric field. The results show that the electric field generated by the moving heavy ions induces dissociation of J/ψ. In the meantime, χ_c is generated via the transition from J/ψ by the electric field.

HTML

Reference (25)

[1]	LUZUM M, ROMATSCHKE P. Phys Rev C, 2008, 78:034915.
[2]	SONG H, BASS S A, HEINZ U, et al. Phys Rev Lett, 2011, 106:192301.
[3]	CHANG N, CAO S, CHEN B, et al. Phys Lett B, 2004, 595:165.
[4]	RELAÑO A, GÓMEZ J M G, MOLINA R A, et al. Phys Rev Lett, 2002, 89:252301.
[5]	AAMODT K, ABRAHANTES A, ADAMOVA D, et al. Phys Lett B, 2011, 696:30.
[6]	LIN Z, KO C M, LI B, et al. Phys Rev C, 2005, 72:064901.
[7]	MATSUI T, SATZ H. Phys Lett B, 1986, 178:416.
[8]	EICHTEN E, GOTTFRIED K, KINOSHITA T, et al. Phys Rev D, 1978, 17:3090.
[9]	EICHTEN E, GOTTFRIED K, KINOSHITA T, et al. Phys Rev D, 1980, 21:203.
[10]	CREUTZ M, HORVÁTH I. Phys Rev D, 1994, 50:3.
[11]	EICHTEN E, GOTTFRIED K, KINOSHITA T, et al. Phys Rev Lett, 1975, 34:6.
[12]	KARSCH F, LAERMANN E. arXiv:hep-lat/0305025.
[13]	BZDAK A, VLADIMIR S. Phys Rev B, 2012, 710:171.
[14]	KARSCH F, PETRONZIO R. Z Phys C, 1988, 37:627.
[15]	SATZ H. Journal of Physics G:Nuclear and Particle Physics, 2006, 32:R25.
[16]	KARSCH F, MEHR M T, SATZ H. Z. Phys. C, 1988, 37:617.
[17]	GRECO V, VAN HEES H, RAAP R. AIP Conf Proc, 2012, 1442:117.
[18]	DENG W, HUANG X. Phys Rev C, 2012, 85:044907.
[19]	JACKSON J. Classical Electrodynamics[M]. 3rd ed. New Jersey:Wiley, 1998.
[20]	HEYDE K. Basic Ideas and Concepts in Nuclear Physics:An Introduction Approach[M]. London:Bristol and Philadelphia, 1994.
[21]	EARDEN I G B, BEAVIS D, BESLIU C, et al (BRAHMS Collaboration). Phys Rev Lett 2004, 93:102301.
[22]	JORKEN J D B. Phys Rev D, 1983, 27:140.
[23]	GUO X, SHI S, XU N. et al. Phys Rev B, 2015751:215.
[24]	TUCHIN K. Adv High Energy Phys, 2013, 2013:490495.
[25]	TOSHIAKI I. Phys Rev E, 1994, 49:4684.

Effect of Strong Electric Field on the Evolution of Charmonium in Quark Gluon Plasma

doi: 10.11804/NuclPhysRev.36.03.278

Abstract

References

Proportional views

通讯作者: 陈斌, bchen63@163.com

Article Metrics

Proportional views