Measurement of the inelastic proton-proton cross-section at root s=7 TeV with the ATLAS detector

	Measurement of the inelastic proton-proton cross-section at root s=7 TeV with the ATLAS detector
	ATLAS Collaboration
刊名	NATURE COMMUNICATIONS
	2011
卷号	2
关键词	ELASTIC-SCATTERING DIFFRACTION DISSOCIATION HIGH-ENERGIES HARD SOFT PHOTOPRODUCTION AMPLITUDES MODEL PP
通讯作者	Monig, K (reprint author), DESY, Notkestr 85, D-2000 Hamburg, Germany.
英文摘要	The dependence of the rate of proton-proton interactions on the centre-of-mass collision energy, root s, is of fundamental importance for both hadron collider physics and particle astrophysics. The dependence cannot yet be calculated from first principles; therefore, experimental measurements are needed. Here we present the first measurement of the inelastic proton-proton interaction cross-section at a centre-of-mass energy, root s, of 7 TeV using the ATLAS detector at the Large Hadron Collider. Events are selected by requiring hits on scintillation counters mounted in the forward region of the detector. An inelastic crosssection of 60.3 +/- 2.1 mb is measured for xi > 5x10(-6), where xi is calculated from the invariant mass, M-X, of hadrons selected using the largest rapidity gap in the event. For diffractive events, this corresponds to requiring at least one of the dissociation masses to be larger than 15.7 GeV.
学科主题	Science & Technology - Other Topics
类目[WOS]	Multidisciplinary Sciences
收录类别	SCI
语种	英语
WOS记录号	WOS:000294807200005
公开日期	2016-02-26
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/213106]
专题	高能物理研究所_实验物理中心
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	ATLAS Collaboration. Measurement of the inelastic proton-proton cross-section at root s=7 TeV with the ATLAS detector[J]. NATURE COMMUNICATIONS,2011,2.
APA	ATLAS Collaboration.(2011).Measurement of the inelastic proton-proton cross-section at root s=7 TeV with the ATLAS detector.NATURE COMMUNICATIONS,2.
MLA	ATLAS Collaboration."Measurement of the inelastic proton-proton cross-section at root s=7 TeV with the ATLAS detector".NATURE COMMUNICATIONS 2(2011).