论文标题
$ \ sqrt {s} = $ 8和13 TEV
IR-improved DGLAP parton shower effects for associated production of a W boson and jets in pp collisions at $\sqrt{s}=$8 and 13 TeV
论文作者
论文摘要
在上一篇文章（以下称为我）中，我们使用IR-herwiri1.031 parton淋浴MC分析了W + JETS事件的7个TEV LHC数据，从IR改良的DGLAP PARTON淋浴效果中分析mg5 \ _amc@nlo。在当前的论文中，我们将此分析扩展到LHC 8和13 TEV数据，以调查I中获得的结果的能量依赖。差分横截面报告为喷气多样性的功能，横向线性动量（$ p_ {t} $），射流pesudo-rapities（$η$）和针对不同喷气多重性的射流横向动量（$ h_ {t} $）的标量值1--3。还显示了Dijet横截面作为横向线性动量的功能，Dijet的不变质量和射流分离。还检查了喷气机与若子之间角相关性的分布，并提出了相应的横截面。将各个测得的横截面与Madgraph5 \ _amc@nlo/herwiri1.031〜（$ \ MATHTT {ptrms} = 0）= 0）$ and Graph {amc} = 0）$ and GRAPH5 \ _amc@nlo/herwiri1.031 = 0）$ madgraph5 \ _amc@nlo/herwiri1.031 = 0）'' madgraph5 \ _amc@nlo/herwig6.521~（$ \ m athtt {ptrms} = 2.2〜 \ mathrm {gev}）$，并以他们的能量依赖性来讨论现象学后果。
In a previous paper, hereafter referred to as I, we have analyzed the 7 TeV LHC data on W + jets events from the standpoint of IR-improved DGLAP parton shower effects, using the IR-improved Herwiri1.031 parton shower MC in comparison with the Herwig6.5 parton shower MC in the context of the exact $O(α_s)$ matrix element matched parton shower framework provided by MG5\_aMC@NLO. In the current paper, we extend this analysis to the LHC 8 and 13 TeV data to investigate the energy dependence of the results obtained in I. Specifically, W~+ jet events are generated in the MADGRAPH5\_aMC@NLO framework and showered by HERWIG6.521 and HERWIRI1.031 with $\mathtt{PTRMS}=2.2$ and 0 GeV, respectively. The differential cross sections are reported as functions of jet multiplicity, transverse linear momenta ($P_{T}$), the jet pesudo-rapidity ($η$) and the scalar sum of jet transverse momenta ($H_{T}$) for different jet multiplicities 1--3. The dijet cross sections as functions of transverse linear momenta, invariant mass of the dijet and the jet separation are shown as well. Distributions of angular correlations between the jets and the muon are examined as well and the corresponding cross sections are presented. The respective measured cross sections are compared with the exact next-to-leading-order (NLO) matrix element matched parton shower theoretical predictions provided by MADGRAPH5\_aMC@NLO/HERWIRI1.031~($\mathtt{PTRMS}=0)$ and MADGRAPH5\_aMC@NLO/HERWIG6.521~($\mathtt{PTRMS}=2.2~\mathrm{GeV})$ and the phenomenological consequences are discussed with an eye toward their energy dependence.
