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首页> 外文期刊>Physical review, C >Geometrical scaling for energies available at the BNL Relativistic Heavy Ion Collider to those at the CERN Large Hadron Collider
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Geometrical scaling for energies available at the BNL Relativistic Heavy Ion Collider to those at the CERN Large Hadron Collider

机译：BNL相对论重型离子撞机的能量的几何缩放到Cern大型Holdron Collier的那些

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摘要

Based on recent experimental results at the BNL Relativistic Heavy Ion Collider (RHIC) and the CERN Large Hadron Collider (LHC), the (p(T)) dependence of identified light flavor charged hadrons on root(dN/dy)/S-perpendicular to, the relevant scale in the gluon saturation picture, is studied froms root s(NN) = 7.7 GeV up to 5.02 TeV. This study is extended to the slopes of the (p(T)) dependence on the particle mass and the (beta(T)) parameter from Boltzmann-Gibbs blast wave (BGBW) fits of the p(T) spectra. A systematic decrease of the slope of the (p(T)) dependence on root(dN/dy)/S-perpendicular to from Beam Energy Scan (BES) to LHC energies is evidenced. While, for the RHIC energies, within the experimental errors, (p(T))/root(dN/dy)/S-perpendicular to does not depend on centrality, at the LHC energies a deviation from a linear behavior is observed towards the most central collisions. The influence of the corona contribution on the observed trends is discussed. The slopes of the (p(T)) particle mass dependence and the (beta(T)) parameter from BGBW fits scale well with root(dN/dy)/S-perpendicular to. Similar systematic trends for pp at root s = 7 TeV are in a good agreement with the ones corresponding to Pb-Pb collisions at root s(NN) = 2.76 and 5.02 TeV, pointing to a system-size-independent behavior.
机译：基于BNL相对论重离子撞机（RHIC）和CERN大型强子撞机（LHC）的最近实验结果，鉴定的轻质风味的（P（t））依赖性带电的强子脉（DN / Dy）/ s垂直作为胶合饱和图中的相关规模，从根S（nn）= 7.7 gev高达5.02 tev。该研究扩展到（p（t））依赖于来自P（t）光谱的Boltzmann-Gibbs Blast波（BGBW）的粒子质量和（β（β（β（β（β（β（β（β））的斜率。证据，可以通过对Root（DN / Dy）/ S垂直于光束能量扫描（BE）的依赖性的（p（t））依赖性的系统减小到LHC能量。虽然，对于在实验误差内（p（t））/根（dn / dy）/ s垂直于不依赖于中心，而在LHC能量下观察到与线性行为的偏差大多数中央碰撞。讨论了电晕贡献对观察到的趋势的影响。来自BGBW的（P（t））粒子质量依赖性和（β（β（β（t））参数的斜率与根（DN / Dy）/ s垂直于鳞片均匀。 Root S = 7 Tev的PP的类似系统趋势与Root S（NN）= 2.76和5.02 Tev的PB-PB碰撞相对应的吻合良好，指向系统大小无关的行为。

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  • 来源
    《Physical review, C》 |2018年第2期|共14页
  • 作者

    Petrovici M.; Lindner A.; Pop A.; Tarzila M.; Berceanu I;

  • 作者单位

    Natl Inst Phys &

    Nucl Engn IFIN HH Hadron Phys Dept Bucharest Romania;

    Natl Inst Phys &

    Nucl Engn IFIN HH Hadron Phys Dept Bucharest Romania;

    Natl Inst Phys &

    Nucl Engn IFIN HH Hadron Phys Dept Bucharest Romania;

    Natl Inst Phys &

    Nucl Engn IFIN HH Hadron Phys Dept Bucharest Romania;

    Natl Inst Phys &

    Nucl Engn IFIN HH Hadron Phys Dept Bucharest Romania;

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  • 正文语种 eng
  • 中图分类 原子核物理学、高能物理学;
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