论文标题
在$ \ sqrt {s} = $ 5.02 tev的质子 - 普罗顿碰撞中B喷气形状的测量
Measurement of b jet shapes in proton-proton collisions at $\sqrt{s} =$ 5.02 TeV
论文作者
论文摘要
我们介绍了与源自B夸克的质子 - 质子碰撞中B夸克相关的电荷 - 摩托车产量的首次研究，质量为5.02 TEV。本研究中使用的数据样本是在CERN LHC上使用CMS检测器收集的，对应于27.4 pb $^{ - 1} $的集成光度。为了表征射流子结构，用于B JET的差分射流形状定义为带电的Hadron的归一化横向动量分布是与射流轴的角距离的函数。除了射流形状外，还量化了与B射流相关的带电颗粒的每喷屈服，这再次是角度相对于射流轴的角度的函数。比较了B射流的射流形状和颗粒屈服分布与包容性喷气机的结果，以及毕曲（Pythia）和Herwig ++事件发生器的预测。
We present the first study of charged-hadron production associated with jets originating from b quarks in proton-proton collisions at a center-of-mass energy of 5.02 TeV. The data sample used in this study was collected with the CMS detector at the CERN LHC and corresponds to an integrated luminosity of 27.4 pb$^{-1}$. To characterize the jet substructure, the differential jet shapes, defined as the normalized transverse momentum distribution of charged hadrons as a function of angular distance from the jet axis, are measured for b jets. In addition to the jet shapes, the per-jet yields of charged particles associated with b jets are also quantified, again as a function of the angular distance with respect to the jet axis. Extracted jet shape and particle yield distributions for b jets are compared with results for inclusive jets, as well as with the predictions from the PYTHIA and HERWIG++ event generators.
