论文标题
CMS的喷气测量
Jet measurements at CMS
论文作者
论文摘要
据报道，基于CERN LHC与CMS检测器的高能量PP碰撞中的JET产生的最新测量结果。具体而言，讨论了讨论了$ k_t $ dance参数$ r $ r $ r $在$ r = 0.4 $的抗$ k_t $ r $ r $的函数的函数的测量。横截面比对量子染色体动力学（QCD）中射流形成过程的各种扰动和非扰动处理敏感。在第二项研究中，PARTON淋浴和矩阵元素方法的有效性制度对PP碰撞中的MultiJet事件进行了测试，该事件是$ \ sqrt {s} = 8 $和$ 13 $ tev。特别注意第二和第三领先的$ p_ \ text {t} $喷气机及其动量和速度 - 齐达相关性。最后，提出了对两个领先的$ p_t $喷头的研究，其中提出了大量的伪造时间间隔。预计这种签名是可以从硬色单线交换（扰动QCD中的两丝线交换）中获得的。后者可以根据Balitsky-Fadin-Kuraev-Lipatov（BFKL）进化方程来使用扰动QCD技术处理。
Recent measurements based on jet production in high energy pp collisions at the CERN LHC with the CMS detector are reported. Specifically, the measurement of the inclusive jet production cross section as a function of the anti-$k_t$ distance parameter $R$ divided by the jet cross section at $R = 0.4$, is discussed. The cross section ratio is sensitive to various perturbative and non-perturbative treatments of the jet formation process in quantum chromodynamics (QCD). In the second study, the regimes of validity of the parton shower and matrix element approaches are tested on multijet events in pp collisions at $\sqrt{s} = 8$ and $13$ TeV. Special attention is given to the second and third leading $p_\text{T}$ jets and their momenta and rapidity-azimuth correlations. Finally, studies of dijet production where the two leading $p_T$ jets are separated by a large pseudorapidity interval void of charged particles is presented. This signature is expected from hard color singlet exchange (two-gluon exchange in perturbative QCD). The latter can be treated with perturbative QCD techniques based on the Balitsky-Fadin-Kuraev-Lipatov (BFKL) evolution equations.
