论文标题
在$ \ sqrt {s} $ = 13 TEV中，Lepton对的横向动量的质量依赖性测量。
Measurement of the mass dependence of the transverse momentum of lepton pairs in Drell-Yan production in proton-proton collisions at $\sqrt{s}$ = 13 TeV
论文作者
论文摘要
DRELL-YAN LEPTON对（$ \ ell^+\ ell^ - $，dielectron或dimuon）生产的双差分横截面的测量是作为不变的质量$ M _ {\ ell \ ell \ el \ el \ el \ el \ el \} $的功能，横向动量$ p_ \ p_ p_ \ mathrm {t） $ ϕ^*_η$可观察的，源自瘦素的角度测量，并与$ p_ \ mathrm {t}（\ ell \ ell \ ell）$高度相关，用于探测以互补方式的低 - $ p_ \ mathrm {t}（\ ell \ ell \ ell \ ell \ ell \ ell \ ell \ ell \ ell \ ell \ ell \ ell）$。研究了最多1 tev的Dilepton群众。此外，进行测量，需要在最终状态下至少一个喷射。为了受益于对系统不确定性的部分取消，提出了各种$ m _ {\ ell \ el \ el \ el \ el} $范围与z质量峰间隔中的差异横截面的比率。收集的数据对应于与CMS检测器在LHC处记录的Proton-Proton碰撞的36.3 fb $^{ - 1} $的集成光度，在13 tev的质量中心的质量中心。将测量结果与基于扰动量子染色体动力学的预测进行了比较，包括软光射重新召集。
The double differential cross sections of the Drell-Yan lepton pair ($\ell^+\ell^-$, dielectron or dimuon) production are measured as functions of the invariant mass $m_{\ell\ell}$, transverse momentum $p_\mathrm{T}(\ell\ell)$, and $ϕ^*_η$. The $ϕ^*_η$ observable, derived from angular measurements of the leptons and highly correlated with $p_\mathrm{T}(\ell\ell)$, is used to probe the low-$p_\mathrm{T}(\ell\ell)$ region in a complementary way. Dilepton masses up to 1 TeV are investigated. Additionally, a measurement is performed requiring at least one jet in the final state. To benefit from partial cancellation of the systematic uncertainty, the ratios of the differential cross sections for various $m_{\ell\ell}$ ranges to those in the Z mass peak interval are presented. The collected data correspond to an integrated luminosity of 36.3 fb$^{-1}$ of proton-proton collisions recorded with the CMS detector at the LHC at a centre-of-mass energy of 13 TeV. Measurements are compared with predictions based on perturbative quantum chromodynamics, including soft-gluon resummation.
