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arXiv 1704.00751hep-exnucl-ex
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从NA61/SHINE到CERN和SPS的Ar+Sc碰撞的多重数涨落

Multiplicity fluctuations in Ar+Sc collisions at the CERN SPS from NA61/SHINE

Andrey Seryakov

摘要:

利用NA 61/SHINE探测器在SPS上研究了13 A、19 A、30 A、40 A、75 A、150 AGeV/c Ar+Sc碰撞中的多重数涨落。中心性选择是基于前半球的核子-旁观者能量,如由射弹旁观者探测器测量的。对所有带正负电荷的强子的多重数分布,得到了标度方差ω和强强度测度Ω的初步结果。并与NA 49和EPOS 1.99模拟的p+p和Pb+Pb资料进行了比较。

英文摘要:

Multiplicity fluctuations were investigated in Ar+Sc collisions at 13A, 19A, 30A, 40A, 75A, 150A GeV/c using the NA61/SHINE detector at the SPS. Centrality selection is based on the nucleon-spectator energy in the forward hemisphere as measured by the Projectile spectator detector. Preliminary results on the scaled variance ω and the strongly intensive measure Ω were obtained for the multiplicity distribution of all, negatively and positively charged hadrons. Results are discussed and compared with p+p results and Pb+Pb data of NA49 and EPOS 1.99 simulations.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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