Blast-wave revision of the multisource thermal model in nucleus–nucleus collisions

详细信息    查看全文

• 作者：F.-H. Liu ; H.-L. Lao
• 刊名：Indian Journal of Physics
• 出版年：2016
• 出版时间：September 2016
• 年：2016
• 卷：90
• 期：9
• 页码：1077-1085
• 全文大小：609 KB
• 刊物类别：Physics and Astronomy
• 刊物主题：Physics
  Astronomy
  Astronomy, Astrophysics and Cosmology
  Physics
  
• 出版者：Springer India
• ISSN：0974-9845
• 卷排序：90

文摘

In the present study the blast-wave picture has been introduced in the multisource thermal model. We assume that the fragments and particles produced by thermal reason in sources in the model are pushed away by a blast-wave. The blast-wave causes the final-state products to be effected by flows which contain isotropic radial flow and anisotropic flow. The momentum distributions of final-state products produced in intermediate-, high-, and ultrahigh-energy nucleus–nucleus collisions obey the standard distributions with revision of flow velocity. The results obtained from the analysis of the model are found to be in good agreement with the experimental data of azimuthal and polar angular distributions of final-state products produced in nucleus–nucleus collisions over an energy range from E_beam = 400 A MeV to \( \sqrt {s_{NN} } = 2.76\;{\text{TeV}}. \)KeywordsBlast-wave revisionMultisource thermal modelAzimuthal distributionPolar angular distributionsFinal-state products