论文标题
LHC的P-P和P-PB碰撞中的远期Trijet生产
Forward trijet production in p-p and p-Pb collisions at LHC
论文作者
论文摘要
We calculate various azimuthal angle distributions for three jets produced in the forward rapidity region with transverse momenta $p_T>20\,\mathrm{GeV}$ in proton-proton (p-p) and proton-lead (p-Pb) collisions at center of mass energy $5.02\,\,\mathrm{TeV}$.我们使用所谓的小$ x $改善横向动量依赖性分解（ITMD）的多方分支扩展。我们研究了与从标准$ k_t $ fartorization到ITMD分解的变化以及从P-P碰撞到P-PB的变化有关的效果。当我们改变分解方法时，我们观察到分布的差异很大，这既可以改善小$ x $ x $ tmd gluon分布，又可以验证和改善分解方法。我们还看到了核修饰比的显着耗竭，表明使用Trijet最终状态以比Dijets更独特的方式搜索饱和效应的可能性。
We calculate various azimuthal angle distributions for three jets produced in the forward rapidity region with transverse momenta $p_T>20\,\mathrm{GeV}$ in proton-proton (p-p) and proton-lead (p-Pb) collisions at center of mass energy $5.02\,\,\mathrm{TeV}$. We use the multi-parton extension of the so-called small-$x$ Improved Transverse Momentum Dependent factorization (ITMD). We study effects related to change from the standard $k_T$-factorization to ITMD factorization as well as changes as one goes from p-p collision to p-Pb. We observe rather large differences in the distribution when we change the factorization approach, which allows to both improve the small-$x$ TMD gluon distributions as well as validate and improve the factorization approach. We also see significant depletion of the nuclear modification ratio, indicating a possibility of searches for saturation effects using trijet final states in a more exclusive way than for dijets.
