论文标题

在$ \ sqrt {s_ \ mathrm {nn}} $ = 5.02 TEV中,使用PBPB碰撞中底部夸克的喷气机搜索中等效果。

Search for medium effects using jets from bottom quarks in PbPb collisions at $\sqrt{s_\mathrm{NN}}$ = 5.02 TeV

论文作者

CMS Collaboration

论文摘要

提出了对重离子碰撞中底部(b)夸克产生的喷气机形状的首次研究。使用带电的强子成分与射流轴径向距离一起研究喷射形状。在LHC处的CMS检测器记录了$ \ sqrt {s_ \ mathrm {nn}} $ = 5.02 TEV的核子 - 核中心能量的铅铅(PBPB)碰撞数据,其集成的亮度为1.69 NB $^{ - 1} $。与质子 - 普罗顿碰撞相比,在PBPB碰撞中观察到B射流中的能量重新分布,距离射流轴更大。发现这种中型诱导的重新分布对于B射流而言,其比含二重射流大得多。

The first study of the shapes of jets arising from bottom (b) quarks in heavy ion collisions is presented. Jet shapes are studied using charged hadron constituents as a function of their radial distance from the jet axis. Lead-lead (PbPb) collision data at a nucleon-nucleon center-of-mass energy of $\sqrt{s_\mathrm{NN}}$ = 5.02 TeV were recorded by the CMS detector at the LHC, with an integrated luminosity of 1.69 nb$^{-1}$. Compared to proton-proton collisions, a redistribution of the energy in b jets to larger distances from the jet axis is observed in PbPb collisions. This medium-induced redistribution is found to be substantially larger for b jets than for inclusive jets.

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