Impact factor of Chinese Physics C is 3.6 in 2023 Impact factor of Chinese Physics C is 3.6 in 2022 2021 Impact Factor 2.944
Advanced Search
×
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> 2002, Vol. 26> Issue(S1) : 82-87 

Analysis of Multi-Particle Production at SPS and RHIC by Two-Source Statistical Model

  •  China Institute of Atomic Energy, Beijing 102413, ChinaThe China Center of Advance Science and Technology CCAST, Beijing 100080, China

  • The data of multi-particle production in 158 A GeV Pb+Pb collisions and s=130 A GeV Au+Au collisions are analyzed by two-source statistical model. It is found that in 158 A GeV Pb+Pb collisions the source is composed of a hot, small inner part and a large, cool outer part. The outer part characterizes the projectile-like and target-like, and the inner part characterizes the central reaction zone. In s=130 A GeV Au+Au collisions, there is a much hotter and larger inner source. The temperature is at least 15MeV higher than that in the inner source in 158 A GeV Pb+Pb collisions. The volume is at least two times of that in the later collision. The reason is that the s=130 A GeV Au+Au collision has large rapidity region [－4.9,4.9], while the experimental data are taken from a small pseudo-rapidity region, |η|<0.5 in which the particles are uniformly distributed as a single source. For a source formed with uniformly-distributed particles, both the single-source statistical model and the two-source statistical model are available, while for a source formed with non-uniformly-distributed particles, only the two-source statistical model is available. The RHIC can provide a hot and large inner source that may be formed in the early stage of hadronization from QGP and may have important physical content behind. We suggest to make synchronous measurement in the outer region, e.g. 3<|y|<4, so as to make comparison.
  • 加载中

  • References

    [1] Braun–Munzinger P, Stachel J, Wessels J P et al. Phys. Letts., 1996, B365: 1; Braun–Munzinger P, Heppe I, Stachel I. Phys. Letts., 1999, B465: 152 YEN G D, Gorenstein M I, Greiner W et al. Phys. Rev., 1997, C56: 2210; YEN G D, Gorenstein M I. Phys. Rev., 1999, C59: 2788 3 Cleymans J, Redlich K. Phys. Rev., 1999, C60: 0549084 LUZD, Neda Z, Csemai L et al. HEP NP, 1997, 22: 910(in Chinese)(陆中道,Neda Z,Csemai L 等.高能物理与核物理,1997,22:910) 5 ZHANG Z Y, YU Y W, CHING C R et al. Phys. Rev., 2000, C61: 065204 6 LU Z D, SA B H, Amand Faessler et al. HEP NP, 2002, 26: 1166 (in Chinese)(陆中道,萨本豪,Amand Faessler.高能物理与核物理,2002,26:1166)7 LU Z D, Amand Faessler, Fuchs C et al. Phys. Rev. C, to be published 8 LU Z D, Amand Faessler.Fuchs C et al. Nonequilibrium and Nonlinear Dynamics in Nuclear and other Finite System, Beijing, China, CP579, 1369 Rafelski J. Phys. Lett., 1991, B262: 33310 Bravina L V, Zabrodin E E, Gorenstein M I et al. Phys. Rev., 1999, C60: 024904 11 Braun–Munzinger P, Magestro D, Redlish K et al. arXiv:hep–ph/010522912 Back B B et al. Phys. Rev. Lett., 2000,85: 3100 13 Back B B et al. PHOBOX Collab., arXiv:hep–ex/010543

  • Access

    加载中

Get Citation
LU Zhong-Dao. Analysis of Multi-Particle Production at SPS and RHIC by Two-Source Statistical Model[J]. Chinese Physics C, 2002, 26(S1): 82-87.
LU Zhong-Dao. Analysis of Multi-Particle Production at SPS and RHIC by Two-Source Statistical Model[J]. Chinese Physics C, 2002, 26(S1): 82-87. shu
Milestone
Received: 1900-01-01
Revised: 1900-01-01
Article Metric

Article Views(3870)
PDF Downloads(548)
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

  1. 本站搜索
  2. 百度学术搜索
  3. 万方数据库搜索
  4. CNKI搜索

Email This Article

Title:
Email:

Analysis of Multi-Particle Production at SPS and RHIC by Two-Source Statistical Model

    Corresponding author: LU Zhong-Dao,
  • China Institute of Atomic Energy, Beijing 102413, ChinaThe China Center of Advance Science and Technology CCAST, Beijing 100080, China
  • Received Date: 1900-01-01
  • Accepted Date: 1900-01-01
  • Available Online: 2002-06-24

Abstract: The data of multi-particle production in 158 A GeV Pb+Pb collisions and s=130 A GeV Au+Au collisions are analyzed by two-source statistical model. It is found that in 158 A GeV Pb+Pb collisions the source is composed of a hot, small inner part and a large, cool outer part. The outer part characterizes the projectile-like and target-like, and the inner part characterizes the central reaction zone. In s=130 A GeV Au+Au collisions, there is a much hotter and larger inner source. The temperature is at least 15MeV higher than that in the inner source in 158 A GeV Pb+Pb collisions. The volume is at least two times of that in the later collision. The reason is that the s=130 A GeV Au+Au collision has large rapidity region [－4.9,4.9], while the experimental data are taken from a small pseudo-rapidity region, |η|<0.5 in which the particles are uniformly distributed as a single source. For a source formed with uniformly-distributed particles, both the single-source statistical model and the two-source statistical model are available, while for a source formed with non-uniformly-distributed particles, only the two-source statistical model is available. The RHIC can provide a hot and large inner source that may be formed in the early stage of hadronization from QGP and may have important physical content behind. We suggest to make synchronous measurement in the outer region, e.g. 3<|y|<4, so as to make comparison.

    HTML

Reference (1)

目录

Link
IOPScience
SCOAP3
arXiv
Chinese Physical Society
Journal information
Introduction
Editorial Board
Others
Subscribe
Contact us
QQ: 1307685413
Tel: +86-010-88235947
Fax: +86-010-88233126
E-mail: cpc@ihep.ac.cn

  • CPC Website

  • IOP Website

  • CPC WeChat

Copyright © Institute of High Energy Physics, Chinese Academy of Sciences, 19B Yuquan Road, Beijing 100049, China 京ICP备05002789号-1

Supported by: Beijing Renhe Information Technology Co. Ltd  E-mail: info@rhhz.net

/

DownLoad:  Full-Size Img  PowerPoint
Return
Return