QCD resummation for light-particle jets

	QCD resummation for light-particle jets
	Li, HN; 李钊;Li, Z; Yuan, CP
刊名	PHYSICAL REVIEW D
	2013
卷号	87 期号:7 页码:74025
英文摘要	We construct an evolution equation for the invariant-mass distribution of light-quark and gluon jets in the framework of QCD resummation. The solution of the evolution equation exhibits a behavior consistent with Tevatron CDF data: the jet distribution vanishes in the small invariant-mass limit, and its peak moves toward the high invariant-mass region with the jet energy. We also construct an evolution equation for the energy profile of the light-quark and gluon jets in the similar framework. The solution shows that the energy accumulates faster within a light-quark jet cone than within a gluon jet cone. The jet energy profile convoluted with hard scattering and parton distribution functions matches well with the Tevatron CDF and the LHC CMS data. Moreover, comparison with the CDF and CMS data implies that jets with large (small) transverse momentum are mainly composed of the light-quark (gluon) jets. At last, we discuss the application of the above solutions for the light-particle jets to the identification of highly boosted heavy particles produced at the LHC. DOI: 10.1103/PhysRevD.87.074025
学科主题	Astronomy & Astrophysics; Physics
收录类别	SCI
WOS记录号	WOS:000317912600010
公开日期	2016-05-03
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/224586]
专题	高能物理研究所_理论物理室
推荐引用方式 GB/T 7714	Li, HN,李钊；Li, Z,Yuan, CP. QCD resummation for light-particle jets[J]. PHYSICAL REVIEW D,2013,87(7):74025.
APA	Li, HN,李钊；Li, Z,&Yuan, CP.(2013).QCD resummation for light-particle jets.PHYSICAL REVIEW D,87(7),74025.
MLA	Li, HN,et al."QCD resummation for light-particle jets".PHYSICAL REVIEW D 87.7(2013):74025.