Effects of density-and momentum-dependent potentials in Au+Au collisions at intermediate energies

Wen-Jie Xie; Feng-Shou Zhang

doi:10.1088/1674-1137/42/10/104103

Chinese Physics C> 2018, Vol. 42> Issue(10) : 104103 DOI: 10.1088/1674-1137/42/10/104103

Effects of density-and momentum-dependent potentials in Au+Au collisions at intermediate energies

Wen-Jie Xie ¹ ,
Feng-Shou Zhang ²

1.
Department of Physical and Electronic Engineering, Yuncheng University, Yuncheng 044000, China
2.
The Key Laboratory of Beam Technology and Material Modification of Ministry of Education, College of Nuclear Science and Technology, Beijing Normal University, Beijing 100875, China

Abstract
HTML
Reference
Related

PDF

Abstract：
Based on an isospin-dependent transport model, the effects of the density-and momentum-dependent potentials are studied by simulating Au on Au collisions at 90, 120, 150 and 400 MeV/nucleon. It is found that the calculated results overestimate the experimental data on the directed flow and underestimate the data on the elliptic flow for protons. The impact of the density-and momentum-dependent potentials is observed in the mid-rapidity region of the final spectra. At 90 MeV/nucleon, the momentum-dependent potential has a larger impact on the observables than the density-dependent potential, and the elliptic flow has a higher value with the positive effective mass splitting. At 400 MeV/nucleon, however, the opposite is observed. The rapidity dependence of the elliptic flow for protons is sensitive to the symmetry energy. A soft symmetry energy corresponds to a higher value of the proton elliptic flow.
- symmetry energy ,
- effective mass splitting ,
- nuclear collective flow ,
- Au+Au collisions

References

[1]	Isospin Physics in Heavy-Ion Collisions at Intermediate Energies, edited by B. A. Li and W. Udo Schrder (Nova Science, New York, 2001)
[2]	B. A. Li, L. W. Chen, C. M. Ko, Phys. Rep., 464:113 (2008)
[3]	V. Baran, M. Colonna, V. Greco, and M. Di Toro, Phys. Rep., 410:335 (2005)
[4]	M. B. Tsang, Y. Zhang, P. Danielewicz, M. Famiano, Z. Li, W. G. Lynch, A. W. Steiner, Phys. Rev. Lett., 102:122701 (2009)
[5]	G. Ferini, T. Gaitanos, M. Colonna, M. Di Toro, H. H. Wolter, Phys. Rev. Lett., 97:202301 (2006)
[6]	L. W. Chen, C. M. Ko, B. A. Li, Phys. Rev. Lett., 94:032701 (2005)
[7]	J. B. Natowitz, G. Rpke, S. Typel, D. Blaschke, A. Bonasera, K. Hagel, T. Klhn, S. Kowalski, L. Qin, S. Shlomo, R. Wada, H. H. Wolter, Phys. Rev. Lett., 104:202501 (2010)
[8]	Z. G. Xiao, B. A. Li, L. W. Chen, G. C. Yong, and M. Zhang, Phys. Rev. Lett., 102:062502 (2009)
[9]	Z. Q. Feng, G. M. Jin, Phys. Lett. B, 683:140 (2010)
[10]	W. J. Xie, J. Su, L. Zhu, and F. S. Zhang, Phys. Lett. B., 718:1510 (2013)
[11]	P. Russotto, P. Z. Wu, M. Zoric, M. Chartier, Y. Leifels, R. C. Lemmon, Q. Li, J. Lukasik, A. Pagano, P. Pawlowski, and W. Trautmann, Phys. Lett. B, 697:471 (2011)
[12]	F. Amorini, et al, Phys. Rev. Lett., 102:112701 (2009)
[13]	T. X. Liu et al, Phys. Rev. C, 86:024605 (2012)
[14]	Z. Kohley et al, Phys. Rev. C, 82:064601 (2010)
[15]	M. B. Tsang et al, Phys. Rev. Lett., 92:062701 (2004)
[16]	W. Reisdorf et al, Nucl. Phys. A, 781:459 (2007)
[17]	W. Reisdorf et al, Nucl. Phys. A, 876:1 (2012)
[18]	Topical issue on nuclear symmetry energy, editted by B. A. Li, . Ramos, G. Verde and I. Vidaa (Eur. Phys. J. A, volume 50, 2014)
[19]	V. Giordano, M. Colonna, M. Di Toro, V. Greco, and J. Rizzo, Phys. Rev. C, 81:044611 (2010)
[20]	Z. Q. Feng, Phys. Lett. B, 707:83 (2012)
[21]	W. J. Xie, J. Su, L. Zhu, F. S. Zhang, Phys. Rev. C, 88:061601(R) (2013)
[22]	W. J. Xie and F. S. Zhang, Phys. Lett. B, 735:250 (2014)
[23]	B. A. Li, B. J. Cai, L. W. Chen, and J. Xu, Prog. Part. Nucl. Phys., 99:29 (2018)
[24]	C. Gale, G. M. Welke, M. Prakash, S. J. Lee, and S. Das Gupta, Phys. Rev. C, 41:1545 (1990)
[25]	C. B. Das, S. D. Gupta, C. Gale, and B. A. Li, Phys. Rev. C., 67:034611 (2003)
[26]	B. A. Li, C. B. Das, S. D. Gupta, C. Gale, Phys. Rev. C, 69:011603(R) (2004)
[27]	J. Rizzo, M. Colonna, and M. Di Toro, Phys. Rev. C, 72:064609 (2005)
[28]	Y. Zhang, M. B. Tsang, Z. Li, H. Liu, Phys. Lett. B, 732:186 (2014)
[29]	J. Aichelin, A. Rosenhauer, G. Peilert, H. Stoecker, and W. Greiner, Phys. Rev. Lett., 58:1926 (1987)
[30]	Z. Q. Feng, Phys. Rev. C, 84:024610 (2011)
[31]	L. W. Chen, F. S. Zhang, and G. M. Jin, Phys. Rev. C, 58:2283 (1998)
[32]	J. Su, K. Cherevko, W. J. Xie, and F. S. Zhang, Phys. Rev. C, 89:014619 (2014)
[33]	B. A. Bian, F. S. Zhang, and H. Y. Zhou, Phys. Lett. B, 665:314 (2008)
[34]	L. Zhu, J. Su, W. J. Xie, and F. S. Zhang, Nucl. Phys. A, 915:90 (2013)
[35]	J. Su and F. S. Zhang, Phys. Rev. C, 84:037601 (2011)
[36]	J. Su, L. Zhu, W. J. Xie, and F. S. Zhang, Phys. Rev. C, 85:017604 (2012)
[37]	Z. Q. Feng, Phys. Rev. C, 85:014604 (2012)
[38]	W. J. Xie, Z. Q. Feng, J. Su, F. S. Zhang, Phys. Rev. C, 91:054609 (2015)
[39]	G. F. Bertsch and S. Das Gupta, Phys. Rep., 160:189 (1988)
[40]	J. Cugnon, D. L'Hte, and J. Vandermeulen, Nucl. Instrum. Meth. Phys. Res. B, 111:215 (1996)
[41]	G. D. Westfall, et al, Phys. Rev. Lett., 71:1986 (1993)
[42]	M. Papa, T. Maruyama, and A. Bonasera, Phys. Rev. C, 64:024612 (2001)
[43]	B. A. Li, A. T. Sustich, B. Zhang, Phys. Rev. C, 64:054604 (2001)
[44]	Y. Wang, C. Guo, Q. Li, H. Zhang, Z. Li, and W. Trautmann, Phys. Rev. C, 89:034606 (2014); Q. Li, C. Shen, C. Guo, Y. Wang, Z. Li, J. Lukasik, and W. Trautmann, Phys. Rev. C, 83:044617 (2011)

[1]	Ya-Fei Guo , Peng-Hui Chen , Fei Niu , Zhao-Qing Feng . Isospin effect in peripheral heavy-ion collisions at Fermi energies. Chinese Physics C, 2018, 42(12): 124106. doi: 10.1088/1674-1137/42/12/124106
[2]	Jiamin Chen , Xiaofeng Luo , Feng Liu , Yasushi Nara . Effects of mean-field and softening of equation of state on elliptic flow in Au+Au collisions at √s_NN=5 GeV from the JAM model. Chinese Physics C, 2018, 42(2): 024001. doi: 10.1088/1674-1137/42/2/024001
[3]	Mariana Dutra , Odilon Louren , Or Hen , Eliezer Piasetzky , Débora P. Menezes . The symmetry energy γ parameter of relativistic mean-field models. Chinese Physics C, 2018, 42(6): 064105. doi: 10.1088/1674-1137/42/6/064105
[4]	Rongyao Yang , Sina Wei , Weizhou Jiang . Ground-state properties of light kaonic nuclei signaling symmetry energy at high densities. Chinese Physics C, 2018, 42(2): 024102. doi: 10.1088/1674-1137/42/2/024102
[5]	W. M. Seif , A. S. Hashem . Constraints on the nuclear symmetry energy and its density slope from the α decay process. Chinese Physics C, 2018, 42(6): 064104. doi: 10.1088/1674-1137/42/6/064104
[6]	Min Liu , Yu Gao , Ning Wang . Statistical errors in Weizsäcker-Skyrme mass model. Chinese Physics C, 2017, 41(11): 114101. doi: 10.1088/1674-1137/41/11/114101
[7]	Su-Ya-La-Tu Zhang , Mei-Rong Huang , R. Wada , Xing-Quan Liu , Wei-Ping Lin , Jian-Song Wang . Symmetry energy and experimentally observed cold fragments in intermediate heavy-ion collisions. Chinese Physics C, 2017, 41(4): 044001. doi: 10.1088/1674-1137/41/4/044001
[8]	Ya-Fei Guo , Peng-Hui Chen , Fei Niu , Hong-Fei Zhang , Gen-Ming Jin , Zhao-Qing Feng . Isospin splitting of nucleon effective mass and symmetry energy in isotopic nuclear reactions. Chinese Physics C, 2017, 41(10): 104104. doi: 10.1088/1674-1137/41/10/104104
[9]	Jun-Long Tian , Hai-Tao Cui , Teng Gao , Ning Wang . Effect of Wigner energy on the symmetry energy coefficient in nuclei. Chinese Physics C, 2016, 40(9): 094101. doi: 10.1088/1674-1137/40/9/094101
[10]	ZHANG Zheng-Qiao , ZHANG Song , MA Yu-Gang . Simulation of energy scan of pion interferometry in central Au+Au collisions at relativistic energies. Chinese Physics C, 2014, 38(1): 014102. doi: 10.1088/1674-1137/38/1/014102
[11]	WANG Mei-Juan , CHEN Gang , WU Yuan-Fang . Eccentricity and elliptic flow at fixed centrality in Au+Au collisions at ^sNN=200 GeV in AMPT model. Chinese Physics C, 2013, 37(1): 014104. doi: 10.1088/1674-1137/37/1/014104
[12]	LIU Fu-Ming , Tetsufumi Hirano , Klaus Werner , ZHU Yan . Elliptic flow of direct photons in Au+Au collisions at 200 GeV. Chinese Physics C, 2010, 34(9): 1433-1435. doi: 10.1088/1674-1137/34/9/063
[13]	Kentaro Miki . Elliptic Flow Measurement of Direct Photon in s_NN=200GeV Au+Au Collisions at RHIC-PHENIX. Chinese Physics C, 2007, 31(12): 1174-1176.
[14]	FENG Qi-Chun , ZHANG Jing-Bo , HUO Lei , ZHANG Wei-Ning . Time Dependence of Elliptic Flow in Ultrarelativistic Au+Au Collisions. Chinese Physics C, 2007, 31(8): 736-740.
[15]	FENG Qi-Chun , ZHANG Jing-Bo , HUO Lei , ZHANG Wei-Ning . The Radius Dependence of Elliptic Flow in Au+Au Non-Central Collisions at RHIC Energy. Chinese Physics C, 2006, 30(7): 633-637.
[16]	ZHANG Jing-Bo , HUO Lei , ZHANG Wei-Ning , LIU Yi-Ming . Event Anisotropy in Au+Au Non-central Collisions at RHIC Energy. Chinese Physics C, 2002, 26(8): 851-854.
[17]	ZHANG Jing-Bo , HUO Lei , ZHANG Wei-Ning , LIU Yi-Ming . Radial Flow in Au+Au Central Collisions at RHIC Energy. Chinese Physics C, 2002, 26(4): 305-308.
[18]	ZHANG Jing-Bo , HUO Lei , ZHANG Wei-Ning , LIU Yi-Ming . HBT Parameters for Au+Au Collisions at RHIC Energy. Chinese Physics C, 2001, 25(12): 1253-1257.
[19]	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.
[20]	Xi Hongfei , Shen Wenqing , Zhu Yongtai , Jin Genming , Wei Zhiyong . Development of Central Collective Flow in 100 MeY/u Au+Au Central Collisions. Chinese Physics C, 1997, 21(S3): 63-70.

Access

Get Citation

Wen-Jie Xie and Feng-Shou Zhang. Effects of density-and momentum-dependent potentials in Au+Au collisions at intermediate energies[J]. Chinese Physics C, 2018, 42(10): 104103. doi: 10.1088/1674-1137/42/10/104103

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

Received: 2018-05-04

Fund

Supported by National Natural Science Foundation of China (11505150), China Postdoctoral Science Foundation (2015M582730) and Yuncheng University Research Project (YQ-2014014).

Article Metric

Article Views(1752)
PDF Downloads(40)
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

Effects of density-and momentum-dependent potentials in Au+Au collisions at intermediate energies

Abstract：

References

Access

Article Metrics

Metrics

通讯作者: 陈斌, bchen63@163.com

Email This Article

Effects of density-and momentum-dependent potentials in Au+Au collisions at intermediate energies

HTML

目录