An Algorithm for Increasing the Ratio of QGP Candidate Events in Relativistie Heavy Ion Collision Data Sample Using Factorial Moment Technique

Cheng Qinghua; Hu Yuan; Liu Lianshou

近期发现有不法分子冒充我刊与作者联系，借此进行欺诈等不法行为，请广大作者加以鉴别，如遇诈骗行为，请第一时间与我刊编辑部联系确认（《中国物理C》（英文）编辑部电话：010-88235947,010-88236950），并作报警处理。

本刊再次郑重声明：

（1）本刊官方网址为cpc.ihep.ac.cn和https://iopscience.iop.org/journal/1674-1137

（2）本刊采编系统作者中心是投稿的唯一路径，该系统为ScholarOne远程稿件采编系统，仅在本刊投稿网网址（https://mc03.manuscriptcentral.com/cpc）设有登录入口。本刊不接受其他方式的投稿，如打印稿投稿、E-mail信箱投稿等，若以此种方式接收投稿均为假冒。

（3）所有投稿均需经过严格的同行评议、编辑加工后方可发表，本刊不存在所谓的“编辑部内部征稿”。如果有人以“编辑部内部人员”名义帮助作者发稿，并收取发表费用，均为假冒。

《中国物理C》（英文）编辑部

2024年10月30日

Chinese Physics C> 1999, Vol. 23> Issue(10) : 998-1003

An Algorithm for Increasing the Ratio of QGP Candidate Events in Relativistie Heavy Ion Collision Data Sample Using Factorial Moment Technique

Institute of Particle Physics, Huazhong Normal University, Wuhan 430079

Abstract
HTML
Reference
Related

PDF

Abstract：
The formation of quark-gluon plasma (QGP) in relativistic heavy ion collision, is expected to be accompanied by a background of ordinary collision events without phase transition. In this short note an algorithm is proposed to select the QGP candidate events from the whole event sample. This algorithm is based on a simple geometrical consideration together with some ordinary QGP signal, e.g. the increasing of K/π ratio. This algorithm increases the "signal to noise ratio" of QGP events in the selected sub-sample in shown explicitly by using Monte-Carlo simulation.

References

[1]

Stock R. in Proceedings of the QM95 Pre–conference Workshop on Physics with the Collider Detectors at RHIC and the LHC, eds Thomas J and Hallman T, UCRL—ID─121571 2 Liu Lianshou, Hu Yuan,Deng Yue.Phys.Lett., 1996, B388:103 Liu Feng, Liu Lianshou. Chinese Phys. Lett., 1998,15:104 Bialas A, Peschanski R. Nucl. Phys., 1986, B273:703; 1998, B308:8515 Liu Lianshou, Zhang Yang, Deng Yue. Z. Phys., 1997, C73:5356 Zhang Yonghe, Liu Lianshou, Zhang Xianze. Science in China, 1994, A37:840; Wu Yuanfang, Liu Lianshou. Science in China, 1995, A38:435

[1]	WANG Gang , Declan Keane , Aihong Tang , Sergei A . A Method for Measuring Event-by-Event Elliptic Flow Fluctuations with the First-Order Event Plane in Heavy-Ion Collisions. Chinese Physics C, 2007, 31(12): 1165-1169.
[2]	GAO Jian-Hua . Global Quark Polarization in QGP in Non-central AA Collisions. Chinese Physics C, 2007, 31(12): 1181-1184.
[3]	MAO Hong , LI Yun-De . The Effects of the Pion String at Heavy ion Collisions. Chinese Physics C, 2005, 29(1): 36-40.
[4]	XU Ming-Mei . A Monte Carlo Study on Event-by-Event Transverse Momentum Fluctuation at RHIC. Chinese Physics C, 2005, 29(9): 892-895.
[5]	FENG Sheng-Qin , LIU Lian-Shou . A Study of Mixing Event Method in Relativistic Heavy Ion Collision Experiments. Chinese Physics C, 2003, 27(4): 349-353.
[6]	CHEN Xiao-Fan , CHEN Zhi-Lai , YANG Xue-Dong , LI Zhu-Peng . Distributions of Realative Momentum of Pion Pairs in Relativistic Heavy Ion Collisions. Chinese Physics C, 2001, 25(10): 1002-1005.
[7]	Zhang Weining , Huo Lei , Chen Xiangjun , Liu Yiming . Multipion Correlation Signal for OGP Formation in High Energy Heavy Ion Collisions. Chinese Physics C, 1999, 23(1): 44-50.
[8]	Chen Gang , Liu Lianshou , Gao Yanmin . Method of Fitting Correction Curve for the Factorial-Moment of Multiparticle Production on the High Energy Collisions. Chinese Physics C, 1999, 23(11): 1090-1096.
[9]	Chen Gang , Gao Yanmin , Liu Lianshou . Factorial Moment Analysis of High Energy Experimental Data With Non-integer Partitian Number. Chinese Physics C, 1999, 23(6): 552-560.
[10]	Li Qingfeng , Li Zhuxia . Kaon Production and Flow in Relativistic Heavy-Ion Collisions. Chinese Physics C, 1998, 22(12): 1119-1127.
[11]	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(4): 296-304.
[12]	Sa Benhao , Tai An , Lu Zhongdao . Strange Baryon and the Signal of QGP Formation in Ultrarelativistic Nucleus-Nucleus Collisions. Chinese Physics C, 1995, 19(11): 1019-1023.
[13]	Liu Bo , Zhao Weiqin . Analysis of J/ψ Absorption Cross Section in Relativistic Heavy Ion Collisions. Chinese Physics C, 1994, 18(7): 652-657.
[14]	Gao Song , Li Jiarong . The Statistical Effect of the Internal Lines Within the Reaction Process in QGP. Chinese Physics C, 1994, 18(3): 229-234.
[15]	Zhuang Pengfei , Liu Lianshou . Linear Background and Nonlinear Effect in Relativistic Heavy Ion Collisions. Chinese Physics C, 1994, 18(2): 143-147.
[16]	ZHANG Feng-Shou , GE Ling-Xiao . Excitation Energy in Heavy Ion Collisions. Chinese Physics C, 1992, 16(7): 666-669.
[17]	REN Jiang-Long . Secondary Collision and the Enhancement of the K⁺π⁺ Ratio in the High Energy Heavy-ion Collision. Chinese Physics C, 1992, 16(1): 44-50.
[18]	ZHU Yun-Lun , ZHAO Wei-Qin , GAO Chong-Shou . Effect of Secondary Collisions on the K⁺/π⁺ Ratio in RHIC. Chinese Physics C, 1991, 15(7): 606-614.
[19]	LIU Yi-Ming , ZHANG Wei-Ning , WANG Shan , JIANG Yu-Zhen . TWO-PION INTERFEROMETRY FOR MULTI-PION EVENTS IN RELATIVISTIC HEAVY ION COLLISIONS. Chinese Physics C, 1990, 14(8): 724-730.
[20]	MIAO Bi-Xia , ZHAO Wei-Qin . DISTRIBUTIONS OF TRANSVERSE ENERGY AND ZERO-DEGREE ENERGY IN RELATIVISTIC HEAVY ION COLLISIONS. Chinese Physics C, 1989, 13(5): 470-475.

Access

Get Citation

Cheng Qinghua, Hu Yuan and Liu Lianshou. An Algorithm for Increasing the Ratio of QGP Candidate Events in Relativistie Heavy Ion Collision Data Sample Using Factorial Moment Technique[J]. Chinese Physics C, 1999, 23(10): 998-1003.

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

Received: 1998-07-28
Revised: 1900-01-01

Article Metric

Article Views(3500)
PDF Downloads(588)
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

An Algorithm for Increasing the Ratio of QGP Candidate Events in Relativistie Heavy Ion Collision Data Sample Using Factorial Moment Technique

Corresponding author: Cheng Qinghua,

Institute of Particle Physics, Huazhong Normal University, Wuhan 430079

Received Date: 1998-07-28
Accepted Date: 1900-01-01
Available Online: 1999-10-05

Abstract: The formation of quark-gluon plasma (QGP) in relativistic heavy ion collision, is expected to be accompanied by a background of ordinary collision events without phase transition. In this short note an algorithm is proposed to select the QGP candidate events from the whole event sample. This algorithm is based on a simple geometrical consideration together with some ordinary QGP signal, e.g. the increasing of K/π ratio. This algorithm increases the "signal to noise ratio" of QGP events in the selected sub-sample in shown explicitly by using Monte-Carlo simulation.