arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 1204.4773hep-phhep-ex
收藏

通过夸克接触相互作用产生双喷流的NLO QCD修正

NLO QCD corrections to dijet production via quark contact interactions

Jun Gao, Chong Sheng Li, C. -P. Yuan

摘要:

我们提出了精确的次领先阶(NLO)QCD修正在大型强子对撞机通过夸克接触相互作用,不同的颜色和手征结构诱导的新物理的dijet生产。通过对最近在LHC上进行的夸克复合性研究的分析,我们发现NLO QCD修正可以使双喷流截面降低几十个百分点,这取决于理论参数和所选的运动学区域,并减少了截面对因子化和重整化标度的依赖。我们还计算了重整化群(RG)改进的非线性光学截面的求和从RG运行的威尔逊系数的大的时间。此外,我们还研究了非线性光学QCD效应对各种实验观测值和夸克复合标度的排斥限的影响。

英文摘要:

We present the exact next-to-leading order (NLO) QCD corrections to dijet production at the LHC via quark contact interactions, with different color and chiral structures induced from new physics. Following the recent analysis of quark compositeness search at the LHC, we find that the NLO QCD corrections can lower the dijet cross sections by several tens percent, depending on the theory parameters and the selected kinematic regions, and reduce the dependence of the cross sections on factorization and renormalization scales. We also calculate the renormalization group (RG) improved NLO cross sections by summing over the large logarithms from the RG running of Wilson coefficients. Moreover, we investigate the NLO QCD effects on various experimental observables and exclusion limits of quark compositeness scale.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑