Covariance analysis of an isospin-dependent probe

GUO Wen-Jun; LI Xian-Jie; HUANG Jiang-Wei; WANG Kuo; ZHANG Xiao-Ji

doi:10.1088/1674-1137/39/12/124101

Chinese Physics C> 2015, Vol. 39> Issue(12) : 124101 DOI: 10.1088/1674-1137/39/12/124101

Covariance analysis of an isospin-dependent probe

1.
University of Shanghai for Science and Technology, Shanghai 200093, China

Abstract
HTML
Reference
Related

PDF

Abstract：
Based on a modified quantum molecular dynamics model, we calculate the neutron-proton ratio and the nuclear stopping of reaction systems with different symmetry potentials and collision cross sections. We perform correlations of several probes using the covariance data processing method. It is shown that the correlation between the nuclear stopping and the isospin-dependent nucleon-nucleon cross sections is strong, but the nuclear stopping and symmetry potentials have a weak correlation. The correlation between neutron-proton ratio and symmetry potentials in the case of low energy is stronger. The correlation between neutron-proton ratio and isospin-dependent collision cross sections is enhanced with the increase of energy, but remains weak. In addition, the correlations of the emission numbers of the deuteron with the symmetry potentials and collision cross sections at different beam energies are not obvious compared to two prior physical quantities. In this paper, we define a parameter to quantitatively describe the sensitivity of isospin-dependent probes. By analyzing this parameter, one can extract more information about the isospin effects of the physical quantity.
- isospin-dependent probe ,
- correlation ,
- covariance

References

[1]	Fröhlich N, Baier H. Phys. Rev. C, 1998, 57: 3447-3451
[2]	LI B A, Ko C M, REN Z Z. Phys. Rev. Lett., 1997, 78: 1644-1647
[3]	LI B A, CHEN L W, Ko C M. Physics Reports, 2008, 464: 113-281
[4]	YANG L M, GUO W J, ZHANG Y P et al. Chinese Physics C, 2014, 38: 074105
[5]	LI B A, CHEN L W, YONG G C. Physics Letters B, 2006, 634: 378-382
[6]	Aichelin J, Peilert G, Bohnet A et al. Phys. Rev. C, 1998, 37: 2451-2468
[7]	YANG L M, GUO W J, ZHANG F et al. Chinese Physics C, 2013, 37: 104101
[8]	LI J Q, LIU J Y, ZHAO E G. Communications in Theoretical Physics, 1994, 21: 499-504
[9]	Polanski A, Petrochenkov S, Uzhinsky V. Radiation Protection Dosimetry, 2005, 116: 582-584
[10]	Kazunaka E, Chie M, Daisuke M. Applied Surface Science, 2008, 255: 856-859
[11]	LI B A, REN Z Z, Ko C M, Sherry J Y. Phys. Rev. Lett., 1996, 76: 4492-4495
[12]	XU J, Martinot Z, LI B A. Phys. Rev. C, 2012, 86: 044623
[13]	LIU J Y, GUO W J, WANG S J. Phys. Rev. Lett., 2001, 86: 975-978
[14]	LIU J Y, GUO W J, XING Y Z. Phys. Lett. B, 2002, 540: 213-219
[15]	GAO Y, YONG G C, WANG Y J, LI Q F, ZUO W. Phys. Rev. C, 2013, 88: 057601
[16]	GUO W M, YONG G C, WANG Y J, LI Q F, ZHANG H F, ZUO W. Phys. Lett. B, 2013, 726: 211-217
[17]	YONG G C. Phys. Rev. C, 2011, 84: 014607
[18]	ZHANG Y X, Tsang M B, LI Z X. Phys. Lett. B, 2014, 732: 186-190
[19]	ZHANG Y X, LI Z X, ZHOU C S et al. Journal of Physics: Conference Series, 2013, 420: 012106
[20]	Fattoyev F J, Piekarewicz J. Phys. Rev. C, 2011, 84: 064302
[21]	CHEN Z P, SUN Y Y et al. High Energy Physics and Nuclear Physics, 2004, 28: 284
[22]	Maruyama T, Niita K, Iwamoto A. Phys. Rev. C, 1996, 53: 297
[23]	Morawetz K, Spicka V et al. Phys. Rev. Lett., 1999, 82: 3767-3770
[24]	CHEN L W, ZHANG F S, JIN G M. Phys. Rev. C, 1998, 58: 2283-2291
[25]	Klakow D,Welke G,Bauer W. Phys. Rev. C, 1993, 48: 1982-1987
[26]	Brandt S. Data Analysis: Statistical and Computational Methods for Scientists and Engineers, 3rd ed. 1999

[1]	Hou-Qiong Xia , Rui-Rui Xu , Ping Liu , Roberto Capote , Yuan Tian , Xi Tao , Xiao-Fei Wu , Yue Zhang , Zhi-Gang Ge , Neng-Chuan Shu , Song Feng . Evaluation of neutron cross sections of ⁴⁸Ti based on the Unified-Monte-Carlo-B method. Chinese Physics C, 2024, 48(7): 074101. doi: 10.1088/1674-1137/ad432c
[2]	Wei-Hu Ma , Jian-Song Wang , S. Mukherjee , Qi Wang , D. Patel , Yan-Yun Yang , Jun-Bing Ma , Peng Ma , Shi-Lun Jin , Zhen Bai , Xing-Quan Liu . Correlation between quarter-point angle and nuclear radius. Chinese Physics C, 2017, 41(4): 044103. doi: 10.1088/1674-1137/41/4/044103
[3]	HU Ying , FENG Ke-Xin , ZHANG Wei-Ning . Source function extracted from single-event HBT correlation functions of hydrodynamical sources. Chinese Physics C, 2014, 38(4): 044102. doi: 10.1088/1674-1137/38/4/044102
[4]	HE Peng-Bo , LI Qiang , LIU Xin-Guo . Experimental measurement of the correlation between CT number and heavy ion range. Chinese Physics C, 2012, 36(10): 954-957. doi: 10.1088/1674-1137/36/10/006
[5]	YUE Ping , ZHENG Qiang , REN Zhong-Zhou . Suppressing entanglement sudden death by initialsystem-environment correlation. Chinese Physics C, 2012, 36(7): 592-596. doi: 10.1088/1674-1137/36/7/004
[6]	PENG Ru , YANG Chun-Bin . π-J/ψ correlation and elliptic flow parameter v₂ of charmed mesons at RHIC energy. Chinese Physics C, 2011, 35(5): 453-458. doi: 10.1088/1674-1137/35/5/009
[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 Dan-Ni , ZHANG Lan-Zhi , WANG Bao-Yi , YU Run-Sheng , ZHANG Zhi-Ming , LI Dao-Wu , WEI Long . Positronium annihilation in silica aerogel studied by a positron age-momentum correlation technique. Chinese Physics C, 2009, 33(1): 81-84. doi: 10.1088/1674-1137/33/1/017
[9]	ZUO Jia-Xu , SORENSEN Paul , CAI Xiang-Zhou , HEINZ Mark , MA Yu-Gang . Particle correlation in p+p collision √s_NN=200 GeV in PYTHIA. Chinese Physics C, 2008, 32(S2): 13-16.
[10]	CHEN Bo , ZHAO Qiang , LIU JianYe , ZHANG FengShou , WANG ShunJin , CHEN LieWen , ZUO Wei . A Sensitive Probe for Isospin-Dependent Nucleon-Nucleon Cross Section in Intermediate Energy Heavy Ion Collision. Chinese Physics C, 2000, 24(4): 326-330.
[11]	Xing Yongzhong , Xu Gongou . On Ground-State Correlation in Nuclear Many-Body Systems. Chinese Physics C, 1997, 21(S4): 79-86.
[12]	Xi Hongfei , Zhu Yongtai , Shen Wenqing , Wei Zhiyong . Influence of Central Collective Flow on Charged Particle Correlation Functions. Chinese Physics C, 1997, 21(S3): 51-56.
[13]	Liu Shaomin , Ding Linkai , Shi Ce , Zhaxiciren , Zhaxisanzhu , Mu Jun , Wnag Hui , Lu Hong , Feng Zhenyong , Ren Jingru , Yu Guangce , Zhou Wende , Labaciren , Meng Xianru , Meng Lie , Zhang Jilong , Zhang Chunsheng , Zhang Huimin , Shi Zhizheng , Jia Huanyiu , Mei Dongming , Huang Qing , Tan Youheng , Huo Anxiang , Dai Benzhong . Correlation Between Sun Shadows of 10 TeV Cosmic Ray and the Solar Activity. Chinese Physics C, 1997, 21(S4): 11-18.
[14]	Wang Shaoshun , Zhang Jie , Xiao Chenguo , Ye Yunxiu , Zhong Yu . Multiparticle Correlations, Factorial Cumulant Moments, and Correlation Integrals in pp Collisions at 400 GeV/c. Chinese Physics C, 1995, 19(S2): 133-142.
[15]	Liu Yiming , Zhang Weigang , Huo Lei , Wang Shan , D. Keane , S. Y. Chu , S. Y. Fung . Transverse Motion Correlation of Collective Flow in Relativistic Heavy Ion Collisions. Chinese Physics C, 1994, 18(S2): 167-174.
[16]	Zhang Yang , Hu Yuan , Wu Yuanfang , Liu Lianshou , Zhang Yonghe . On the Intermittency and Correlation Integral of Multiparticle Final-States in High Energy Collisions. Chinese Physics C, 1994, 18(S2): 175-184.
[17]	Huo Lei , Zhang Weining , Wang Shan , Liu Yiming , D. Keane , S. Y. Chu , S. Y. Fung . Absorption Correlation in Pion Interferometry Analyses. Chinese Physics C, 1994, 18(S2): 185-192.
[18]	Wang Shan , Liu Yiming , Jiang Yuzhen , Chen Xiaofan , D. Keane , S. Y. Fung , S. Y. Chu . Azimuthal Correlation Function and the Nuclear Equation of State. Chinese Physics C, 1990, 14(S4): 361-366.
[19]	Bao Chengguang , Li Xianhui . Influence of the Interference of Odd and Even Waves on Spatial Correlation of Nucleon Pair. Chinese Physics C, 1988, 12(S2): 153-158.
[20]	Ren Zhongzhou , Xu Gongou . Alpha-Correlation in a Single-Level Model. Chinese Physics C, 1988, 12(S1): 91-98.

Access

Get Citation

GUO Wen-Jun, LI Xian-Jie, HUANG Jiang-Wei, WANG Kuo and ZHANG Xiao-Ji. Covariance analysis of an isospin-dependent probe[J]. Chinese Physics C, 2015, 39(12): 124101. doi: 10.1088/1674-1137/39/12/124101

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

Received: 2015-04-09

Fund

Supported by National Natural Science Foundation of China (10905041) and the Hujiang Foundation of China (B14004)

Article Metric

Article Views(1503)
PDF Downloads(17)
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

Covariance analysis of an isospin-dependent probe

Corresponding author: GUO Wen-Jun,

1. University of Shanghai for Science and Technology, Shanghai 200093, China

Received Date: 2015-04-09

Available Online: 2015-12-20

Fund Project: Supported by National Natural Science Foundation of China (10905041) and the Hujiang Foundation of China (B14004)

Abstract: Based on a modified quantum molecular dynamics model, we calculate the neutron-proton ratio and the nuclear stopping of reaction systems with different symmetry potentials and collision cross sections. We perform correlations of several probes using the covariance data processing method. It is shown that the correlation between the nuclear stopping and the isospin-dependent nucleon-nucleon cross sections is strong, but the nuclear stopping and symmetry potentials have a weak correlation. The correlation between neutron-proton ratio and symmetry potentials in the case of low energy is stronger. The correlation between neutron-proton ratio and isospin-dependent collision cross sections is enhanced with the increase of energy, but remains weak. In addition, the correlations of the emission numbers of the deuteron with the symmetry potentials and collision cross sections at different beam energies are not obvious compared to two prior physical quantities. In this paper, we define a parameter to quantitatively describe the sensitivity of isospin-dependent probes. By analyzing this parameter, one can extract more information about the isospin effects of the physical quantity.

HTML

Reference (26)

Covariance analysis of an isospin-dependent probe

Abstract：

References

Access

Article Metrics

Metrics

通讯作者: 陈斌, bchen63@163.com

Email This Article