Particle spectra and HBT radii for simulated central nuclear collisions of C plus C, Al plus Al, Cu plus Cu, Au plus Au, and Pb plus Pb from √s=62.4-2760 GeV

被引：0
|
作者：
Habich, M. [1 ]
Nagle, J. L. [1 ]
Romatschke, P. [1 ]
机构：
[1] Univ Colorado, Boulder, CO 80309 USA
来源：
EUROPEAN PHYSICAL JOURNAL C | 2015年 / 75卷 / 01期
关键词：
MULTIPLICITY; DEPENDENCE;
D O I：
10.1140/epjc/s10052-014-3206-7
中图分类号：
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号：
摘要：
We study the temperature profile, pion spectra, and HBT radii in central, symmetric, and boost-invariant nuclear collisions, using a super hybrid model for heavy-ion collisions (SONIC), combining pre-equilibrium flow with viscous hydrodynamics and late-stage hadronic rescatterings. In particular, we simulate Pb + Pb collisions at root s = 2.76 TeV, Au + Au, Cu + Cu, Al + Al, and C + C collisions at root s = 200 GeV, and Au + Au and Cu + Cu collisions at root s = 62.4 GeV. We find that SONIC provides a good match to the pion spectra and HBT radii for all collision systems and energies, confirming earlier work that a combination of pre-equilibrium flow, viscosity, and QCD equation of state can resolve the so-called HBT puzzle. For reference, we also show p + p collisions at root s = 7 TeV. We make tabulated data for the 2 + 1 dimensional temperature evolution of all systems publicly available for the use in future jet energy loss or similar studies.
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