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Measurements of fiducial and differential cross sections for Higgs boson production in the diphoton decay channel at TeV with ATLAS
ATLAS collaboration
2014
发表期刊JOURNAL OF HIGH ENERGY PHYSICS
期号9页码:1-61
通讯作者Aad, G (reprint author), Aix Marseille Univ, CPPM, Marseille, France.
摘要Measurements of fiducial and differential cross sections are presented for Higgs boson production in proton-proton collisions at a centre-of-mass energy of TeV. The analysis is performed in the H -> gamma gamma decay channel using 20.3 fb(-1) of data recorded by the ATLAS experiment at the CERN Large Hadron Collider. The signal is extracted using a fit to the diphoton invariant mass spectrum assuming that the width of the resonance is much smaller than the experimental resolution. The signal yields are corrected for the effects of detector inefficiency and resolution. The pp -> H -> gamma gamma fiducial cross section is measured to be 43.2 +/- 9.4(stat.) (-aEuro parts per thousand 2.9) (+ 3.2) (syst.) +/- 1.2(lumi)fb for a Higgs boson of mass 125.4GeV decaying to two isolated photons that have transverse momentum greater than 35% and 25% of the diphoton invariant mass and each with absolute pseudorapidity less than 2.37. Four additional fiducial cross sections and two cross-section limits are presented in phase space regions that test the theoretical modelling of different Higgs boson production mechanisms, or are sensitive to physics beyond the Standard Model. Differential cross sections are also presented, as a function of variables related to the diphoton kinematics and the jet activity produced in the Higgs boson events. The observed spectra are statistically limited but broadly in line with the theoretical expectations.
关键词HADRON COLLIDERS QCD CORRECTIONS PARTON DISTRIBUTIONS MASSLESS PARTICLES BROKEN SYMMETRIES NNLO QCD LHC COLLISIONS DETECTOR SEARCH
学科领域Physics
DOI10.1007/JHEP09(2014)112
收录类别SCI
语种英语
WOS类目Physics, Particles & Fields
WOS记录号WOS:000343724600001
引用统计
被引频次:23[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/213797
专题实验物理中心
作者单位中国科学院高能物理研究所
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ATLAS collaboration. Measurements of fiducial and differential cross sections for Higgs boson production in the diphoton decay channel at TeV with ATLAS[J]. JOURNAL OF HIGH ENERGY PHYSICS,2014(9):1-61.
APA ATLAS collaboration.(2014).Measurements of fiducial and differential cross sections for Higgs boson production in the diphoton decay channel at TeV with ATLAS.JOURNAL OF HIGH ENERGY PHYSICS(9),1-61.
MLA ATLAS collaboration."Measurements of fiducial and differential cross sections for Higgs boson production in the diphoton decay channel at TeV with ATLAS".JOURNAL OF HIGH ENERGY PHYSICS .9(2014):1-61.
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