Azimuthal distributions of radial momentum and velocity in relativistic heavy ion collisions

  • Azimuthal distributions of radial (transverse) momentum, mean radial momentum, and mean radial velocity of final-state particles are suggested for relativistic heavy ion collisions. Using the AMPT transport model with string melting, the distributions of Au+Au collisions at 200 GeV are presented and studied. It is demonstrated that the distribution of total radial momentum is more sensitive to the anisotropic expansion, as the anisotropies of final-state particles and their associated transverse momentums are both counted in the measurement. The mean radial velocity distribution is compared with the radial flow velocity. The thermal motion contributes an isotropic constant to the mean radial velocity.
      PCAS:
  • 加载中
  • [1] Müller B. Nucl. Phys. A, 2006, 774: 4332 Sorge H. Phys. Lett. B, 1997, 402: 251; Phys. Rev. Lett.1997, 78: 2309; Phys. Rev. Lett., 1999, 82: 20483 Danielewicz P. Phys. Rev. C, 1995, 51: 7164 Voloshin S, ZHANG Y. Z. Phys. C, 1996, 70: 6655 Voloshin S A, Poskanzer A M, Raimond Snellings. arXiv:0809.29496 Danielewicz P, Odyniec G. Phys. Lett. B, 1985, 157: 1467 Miklos Gyulassya, Ivan Viteva, WANG Xin-Nian et al. Phys. Lett. B, 2002, 526: 301-3088 Huovinen P, Ruuskanen P V. Ann. Rev. Nucl. Part. Sci.,2006, 56: 163; Teaney D A. arXiv: 0905.24339 Landau L D, Lifschitz E M, Fluid Mechanics. Institute of Physical Problems, U.S.S.R. Academy of Sciences, Volume6, Course of Theoretical Physics10 Oh Y, Lin Z, Ko C M. arXiv: 0910.197711 Nayak J K, Jan-e Alam. Phys. Rev. C, 2009, 80: 064906; Mohanty P, Nayak J K, Alam J et al. arXiv: 0910.485612 Ollitrault J Y. Nucl. Phys. A, 1998, 638: 195c13 Oh Y, LIN Z W, Ko C Y. Phys. Rev. C, 2009, 80: 06490214 Siemens P, Rasmussen J O. Phys. Rev. Lett., 1979, 42: 88015 Huovinen P, Kolb P F, Heinz U et al. Phys. Lett. B, 2001,503: 5816 ZHANG B, Ko C M, LI B A et al. Phys. Rev. C, 2000, 61:06790117 LIN Zi-Wei, Che Ming Ko, LI Bao-An et al. Phys. Rev. C,2005, 72: 06490118 LIN Z W, Ko C M. Phys. Rev. C, 2002, 65: 03490419 Abelev B I et al. (STAR collaboration). Phys. Rev. C, 2008,77: 05490120 Hwa R C. arXiv:1009.050621 SONG H, Heinz U W. Phys. Rev. C, 2008, 77: 06490122 SONG Hui-Chao. arXiv: 0908.3656
  • 加载中

Get Citation
LI Lin, LI Na and WU Yuan-Fang. Azimuthal distributions of radial momentum and velocity in relativistic heavy ion collisions[J]. Chinese Physics C, 2012, 36(5): 423-428. doi: 10.1088/1674-1137/36/5/007
LI Lin, LI Na and WU Yuan-Fang. Azimuthal distributions of radial momentum and velocity in relativistic heavy ion collisions[J]. Chinese Physics C, 2012, 36(5): 423-428.  doi: 10.1088/1674-1137/36/5/007 shu
Milestone
Received: 2011-09-09
Revised: 2011-08-31
Article Metric

Article Views(1422)
PDF Downloads(296)
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:

Azimuthal distributions of radial momentum and velocity in relativistic heavy ion collisions

Abstract: Azimuthal distributions of radial (transverse) momentum, mean radial momentum, and mean radial velocity of final-state particles are suggested for relativistic heavy ion collisions. Using the AMPT transport model with string melting, the distributions of Au+Au collisions at 200 GeV are presented and studied. It is demonstrated that the distribution of total radial momentum is more sensitive to the anisotropic expansion, as the anisotropies of final-state particles and their associated transverse momentums are both counted in the measurement. The mean radial velocity distribution is compared with the radial flow velocity. The thermal motion contributes an isotropic constant to the mean radial velocity.

    HTML

Reference (1)

目录

/

DownLoad:  Full-Size Img  PowerPoint
Return
Return