论文标题
测量差异横截面,用于生产Z玻色子与proton-Proton碰撞中的喷气机相关的Z Boson,$ \ sqrt {s} $ = 13 TEV
Measurement of differential cross sections for the production of a Z boson in association with jets in proton-proton collisions at $\sqrt{s}$ = 13 TeV
论文作者
论文摘要
在质子 - 普罗顿碰撞中,在13 TEV的质量中碰撞中,提出了Z实量的产生,它们与喷气机腐烂成两个电子或若虫。数据由LHC的CMS协作记录,集成的光度为35.9 fb $^{ - 1} $。差异横截面的测量是z玻色子的横向动量($ p_ \ mathrm {t} $)的函数,以及最大的$ p_ \ mathrm {t} $的五个喷气机的横向动量和速度。射流多重性分布可用于多达八个喷气机。这些事件中的HADRONIC活动是使用所有喷气机的$ P_ \ Mathrm {T} $的标量总和来估算的。所有测量值都展开到稳定的粒子级别,并与各种蒙特卡洛事件发生器的预测以及在扰动量子染色体动力学中的前导和临时领先顺序的预期相比。
A measurement is presented of the production of Z bosons that decay into two electrons or muons in association with jets, in proton-proton collisions at a centre-of-mass energy of 13 TeV. The data were recorded by the CMS Collaboration at the LHC with an integrated luminosity of 35.9 fb$^{-1}$. The differential cross sections are measured as a function of the transverse momentum ($p_\mathrm{T}$) of the Z boson and the transverse momentum and rapidities of the five jets with largest $p_\mathrm{T}$. The jet multiplicity distribution is measured for up to eight jets. The hadronic activity in the events is estimated using the scalar sum of the $p_\mathrm{T}$ of all the jets. All measurements are unfolded to the stable particle-level and compared with predictions from various Monte Carlo event generators, as well as with expectations at leading and next-to-leading orders in perturbative quantum chromodynamics.