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Nuclear Theory

arXiv:1602.01564 (nucl-th)
[Submitted on 4 Feb 2016 (v1), last revised 9 Sep 2016 (this version, v3)]

Title:Beam energy dependence of Hanbury-Brown-Twiss radii from a blast-wave model

Authors:S. Zhang, Y. G. Ma, J. H. Chen, C. Zhong
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Abstract:The beam energy dependence of correlation lengths (the Hanbury-Brown-Twiss radii) is calculated by using a blast-wave model and the results are comparable with those from RHIC-STAR beam energy scan data as well as the LHC-ALICE measurements. A set of parameter for the blast-wave model as a function of beam energy under study are obtained by fit to the HBT radii at each energy point. The transverse momentum dependence of HBT radii is presented with the extracted parameters for Au + Au collision at $\sqrt{s_{NN}} = $ 200 GeV and for Pb+Pb collisions at 2.76 TeV. From our study one can learn that particle emission duration can not be ignored while calculating the HBT radii with the same parameters. And tuning kinetic freeze-out temperature in a range will result in system lifetime changing in the reverse direction as it is found in RHIC-STAR experiment measurements.
Comments: 9 pages, 9 figures
Subjects: Nuclear Theory (nucl-th); High Energy Physics - Phenomenology (hep-ph); Nuclear Experiment (nucl-ex)
Cite as: arXiv:1602.01564 [nucl-th]
  (or arXiv:1602.01564v3 [nucl-th] for this version)
  https://doi.org/10.48550/arXiv.1602.01564

Submission history

From: Yu-Gang Ma [view email]
[v1] Thu, 4 Feb 2016 06:02:04 UTC (38 KB)
[v2] Tue, 31 May 2016 07:57:27 UTC (38 KB)
[v3] Fri, 9 Sep 2016 02:00:48 UTC (38 KB)
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