Rayleigh-like distribution of particle transverse momenta in collisions at high energies

SHAO Gui-Cheng; LI Hui-Ling

doi:10.1088/1674-1137/34/7/007

Chinese Physics C> 2010, Vol. 34> Issue(7) : 964-971 DOI: 10.1088/1674-1137/34/7/007

Rayleigh-like distribution of particle transverse momenta in collisions at high energies

SHAO Gui-Cheng ^, ,
LI Hui-Ling

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Abstract：
The transverse momentum distributions of final-state particles produced in collisions at high energies are studied by using a two-component Rayleigh-like distribution. This representation is based on Liu's multisource ideal gas model which describes protons and fragments in high energy nucleus-nucleus collisions. The calculated results are in good agreement with the experimental data of Au-Au, Cu-Cu, d-Au, and pp collisions at the relativistic heavy ion collider energies. The experimental particle momentum distributions of p-Be collisions at 6.4, 12.3, and 17.5 GeV/c, as well as Au-Au collisions at 1.5 AGeV are well described by a model based on a single Rayleigh-like distribution of particle transverse momenta.

References

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SHAO Gui-Cheng and LI Hui-Ling. Rayleigh-like distribution of particle transverse momenta in collisions at high energies[J]. Chinese Physics C, 2010, 34(7): 964-971. doi: 10.1088/1674-1137/34/7/007

SHAO Gui-Cheng and LI Hui-Ling. Rayleigh-like distribution of particle transverse momenta in collisions at high energies[J]. Chinese Physics C, 2010, 34(7): 964-971. doi: 10.1088/1674-1137/34/7/007 shu

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Received: 2009-09-25
Revised: 2009-11-30

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通讯作者: 陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

Rayleigh-like distribution of particle transverse momenta in collisions at high energies

Corresponding author: SHAO Gui-Cheng,

Received Date: 2009-09-25

Accepted Date: 2009-11-30

Available Online: 2010-07-05

Abstract:

The transverse momentum distributions of final-state particles produced in collisions at high energies are studied by using a two-component Rayleigh-like distribution. This representation is based on Liu's multisource ideal gas model which describes protons and fragments in high energy nucleus-nucleus collisions. The calculated results are in good agreement with the experimental data of Au-Au, Cu-Cu, d-Au, and pp collisions at the relativistic heavy ion collider energies. The experimental particle momentum distributions of p-Be collisions at 6.4, 12.3, and 17.5 GeV/c, as well as Au-Au collisions at 1.5 AGeV are well described by a model based on a single Rayleigh-like distribution of particle transverse momenta.

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Rayleigh-like distribution of particle transverse momenta in collisions at high energies

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