Azimuthal Distribution of Charged Particles in Pb-Pb Collisions at 2.76 TeV

SI Ruifang; LIU Fuhu

doi:10.11804/NuclPhysRev.32.04.392

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SI Ruifang, LIU Fuhu. Azimuthal Distribution of Charged Particles in Pb-Pb Collisions at 2.76 TeV[J]. Nuclear Physics Review, 2015, 32(4): 392-397. doi: 10.11804/NuclPhysRev.32.04.392

Citation:

SI Ruifang, LIU Fuhu. Azimuthal Distribution of Charged Particles in Pb-Pb Collisions at 2.76 TeV[J]. Nuclear Physics Review, 2015, 32(4): 392-397. doi: 10.11804/NuclPhysRev.32.04.392

Azimuthal Distribution of Charged Particles in Pb-Pb Collisions at 2.76 TeV

doi: 10.11804/NuclPhysRev.32.04.392

SI Ruifang^1
,,
LIU Fuhu²

1.
Department of Mathematics and Science, Fenyang Normal Campus Lvliang College, Fenyang 032200, Shanxi, China;
2.
Institute of Theoretical Physics, Shanxi University, Taiyuan 030006, China

Received Date: 2015-03-31
Accepted Date: 2015-12-20
Rev Recd Date: 2015-08-09
Publish Date: 2015-12-20

Abstract

We analyze the azimuthal distributions of charged particles produced in 2.76 TeV Pb-Pb collisionsfrom ATLAS experimental group in eight different centralities by using the multi-source thermal model. Themodeling results are compared with the results from Fourier series forms with n = 2,4,6 and n = 2. Meanwhile,the anisotropy ratios and the relative expansion rates of scattering source in transverse momentum space are calculated applying the transverse structural parameters of multi-source thermal model, and the modeling results are compared with the associated fourier coefficients. The anisotropy ratios and the relative expansion rates are less than the corresponding fourier coefficients in transverse momentum space in different center intervals. Elliptical anisotropy is main component in azimuthal distribution. Other anisotropies have different contributions in different centralities, and these contributions cannot be neglected.
- Pb-Pb collisions,
- charged particle,
- azimuthal distribution,
- multi-source thermal model
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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

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Azimuthal Distribution of Charged Particles in Pb-Pb Collisions at 2.76 TeV

doi: 10.11804/NuclPhysRev.32.04.392

SI Ruifang^1,,
LIU Fuhu²

1. Department of Mathematics and Science, Fenyang Normal Campus Lvliang College, Fenyang 032200, Shanxi, China;

2. Institute of Theoretical Physics, Shanxi University, Taiyuan 030006, China

Received Date: 2015-03-31
Accepted Date: 2015-12-20
Rev Recd Date: 2015-08-09
Publish Date: 2015-12-20

Key words:

Abstract: We analyze the azimuthal distributions of charged particles produced in 2.76 TeV Pb-Pb collisionsfrom ATLAS experimental group in eight different centralities by using the multi-source thermal model. Themodeling results are compared with the results from Fourier series forms with n = 2,4,6 and n = 2. Meanwhile,the anisotropy ratios and the relative expansion rates of scattering source in transverse momentum space are calculated applying the transverse structural parameters of multi-source thermal model, and the modeling results are compared with the associated fourier coefficients. The anisotropy ratios and the relative expansion rates are less than the corresponding fourier coefficients in transverse momentum space in different center intervals. Elliptical anisotropy is main component in azimuthal distribution. Other anisotropies have different contributions in different centralities, and these contributions cannot be neglected.

SI Ruifang, LIU Fuhu. Azimuthal Distribution of Charged Particles in Pb-Pb Collisions at 2.76 TeV[J]. Nuclear Physics Review, 2015, 32(4): 392-397. doi: 10.11804/NuclPhysRev.32.04.392

Citation:

SI Ruifang, LIU Fuhu. Azimuthal Distribution of Charged Particles in Pb-Pb Collisions at 2.76 TeV[J]. Nuclear Physics Review, 2015, 32(4): 392-397. doi: 10.11804/NuclPhysRev.32.04.392