论文标题

LHC和CCFM Gluon动力学的相关Higgs + JET(S)生产

Associated Higgs + jet(s) production at the LHC and CCFM gluon dynamics in a proton

论文作者

Lipatov, A. V., Malyshev, M. A.

论文摘要

我们使用$ k_t $ -Factorization方法在LHC首次在LHC中考虑了Higgs Boson和Hadronic Jet的相关生产。我们的分析是基于脱离螺旋 - 蛋白融合子进程的,其中未考虑初始gluon的非零横向动量,并覆盖$ h \至γγ$,$ h \ to zz^* \ to zz^* \ to 4l $($ l = e,$ l = e,μ$)和$ h \ to $ h \ to w^+ w^+ w^+ w^^^ - w^ - to e e e e e^e^e^e^e^e^e^e^e^e^e^e^e^e^e^e^e^e^e^e^e^e^e^e^e^ - 频道。质子中的横向动量依赖性(TMD)GLUON密度取自Catani-Ciafaloni-Fiorani-Marchesini进化方程。为了模拟生成的喷气机的运动学,应用了在蒙特卡洛事件发生器\ textsc {cascade}中实现的TMD Parton淋浴。提出了我们的结果与CMS和ATLAS协作以$ \ sqrt s = 8 $和$ 13 $ TEV以及常规的高阶扰动QCD计算的最新实验数据的比较。我们强调可观察到的物体,这些观察值对质子中的TMD Gluon密度很敏感。

We consider the associated production of Higgs boson and hadronic jet(s) in $pp$ collisions at the LHC for the first time using the $k_T$-factorization approach. Our analysis is based on the off-shell gluon-gluon fusion subprocess, where non-zero transverse momenta of initial gluons are taken into account and covers $H \to γγ$, $H \to ZZ^* \to 4l$ (with $l = e,μ$) and $H \to W^+ W^- \to e^\pm μ^\mp ν\bar ν$ decay channels. The transverse momentum dependent (TMD) gluon densities in a proton are taken from Catani-Ciafaloni-Fiorani-Marchesini evolution equation. To simulate the kinematics of the produced jets the TMD parton shower implemented into the Monte-Carlo event generator \textsc{cascade} is applied. The comparison of our results with the latest experimental data taken by the CMS and ATLAS Collaborations at $\sqrt s = 8$ and $13$ TeV and conventional higher-order perturbative QCD calculations is presented. We highlight observables, which are sensitive to the TMD gluon densities in a proton.

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