Measurement of transverse energy–energy correlations in multi-jet events in pp collisions at using the ATLAS detector and determination of the strong coupling constant

	Measurement of transverse energy–energy correlations in multi-jet events in pp collisions at using the ATLAS detector and determination of the strong coupling constant
	ATLAS Collaboration
刊名	PHYSICS LETTERS B
	2015
卷号	750 页码:427-447
英文摘要	High transverse momentum jets produced in pp collisions at a centre of mass energy of 7 TeV are used to measure the transverse energy-energy correlation function and its associated azimuthal asymmetry. The data were recorded with the ATLAS detector at the LHC in the year 2011 and correspond to an integrated luminosity of 158 pb(-1). The selection criteria demand the average transverse momentum of the two leading jets in an event to be larger than 250 GeV. The data at detector level are well described by Monte Carlo event generators. They are unfolded to the particle level and compared with theoretical calculations at next-to-leading-order accuracy. The agreement between data and theory is good and provides a precision test of perturbative Quantum Chromodynamics at large momentum transfers. From this comparison, the strong coupling constant given at the Z boson mass is determined to be alpha(s)(m(Z)) = 0.1173 +/- 0.0010 (exp.) (+0.0065)(-0.0026) (theo.). (C) 2015 CERN for the benefit of the ATLAS Collaboration. Published by Elsevier B.V.
学科主题	Astronomy & Astrophysics; Physics
类目[WOS]	Astronomy & Astrophysics ; Physics, Nuclear ; Physics, Particles & Fields
收录类别	SCI
WOS记录号	WOS:000364250600072
公开日期	2016-05-03
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/229000]
专题	高能物理研究所_实验物理中心
推荐引用方式 GB/T 7714	ATLAS Collaboration. Measurement of transverse energy–energy correlations in multi-jet events in pp collisions at using the ATLAS detector and determination of the strong coupling constant[J]. PHYSICS LETTERS B,2015,750:427-447.
APA	ATLAS Collaboration.(2015).Measurement of transverse energy–energy correlations in multi-jet events in pp collisions at using the ATLAS detector and determination of the strong coupling constant.PHYSICS LETTERS B,750,427-447.
MLA	ATLAS Collaboration."Measurement of transverse energy–energy correlations in multi-jet events in pp collisions at using the ATLAS detector and determination of the strong coupling constant".PHYSICS LETTERS B 750(2015):427-447.