Measurement of the production cross section for pairs of isolated photons in pp collisions at root s=7 TeV

CORC > 高能物理研究所 > 中国科学院高能物理研究所 > 粒子天体物理中心

	Measurement of the production cross section for pairs of isolated photons in pp collisions at root s=7 TeV
	CMS Collaboration
刊名	JOURNAL OF HIGH ENERGY PHYSICS
	2012
期号	1
关键词	TO-LEADING ORDER HEAVY QUARK PRODUCTION HADRON-COLLISIONS PARTON DISTRIBUTIONS QCD CALCULATIONS SPIN CORRELATION LHC JET NLO ASSOCIATION
通讯作者	Chatrchyan, S (reprint author), Yerevan Phys Inst, Yerevan, Armenia.
英文摘要	The integrated and differential cross sections for the production of pairs of isolated photons is measured in proton-proton collisions at a centre-of-mass energy of 7TeV with the CMS detector at the LHC. A data sample corresponding to an integrated luminosity of 36 pb(-1) is analysed. A next-to-leading-order perturbative QCD calculation is compared to the measurements. A discrepancy is observed for regions of the phase space where the two photons have an azimuthal angle difference Delta phi less than or similar to 2.8 rad.
学科主题	Physics
类目[WOS]	Physics, Particles & Fields
收录类别	SCI
语种	英语
WOS记录号	WOS:000300183300050
公开日期	2016-02-25
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/213177]
专题	高能物理研究所_粒子天体物理中心
作者单位	中国科学院高能物理研究所
推荐引用方式 GB/T 7714	CMS Collaboration. Measurement of the production cross section for pairs of isolated photons in pp collisions at root s=7 TeV[J]. JOURNAL OF HIGH ENERGY PHYSICS,2012(1).
APA	CMS Collaboration.(2012).Measurement of the production cross section for pairs of isolated photons in pp collisions at root s=7 TeV.JOURNAL OF HIGH ENERGY PHYSICS(1).
MLA	CMS Collaboration."Measurement of the production cross section for pairs of isolated photons in pp collisions at root s=7 TeV".JOURNAL OF HIGH ENERGY PHYSICS .1(2012).