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Observation of a new particle in the search for the standard model higgs boson with the atlas detector at the lhc
Atlas collaboration
SourcePhysics letters b
2012
Volume716Issue:1Pages:1-29
KeywordProton-proton collisions Hadron colliders Qcd corrections Parton distributions Transverse-momentum Massless particles Broken symmetries Cross-sections Root-s=7 tev Gauge fields
Corresponding AuthorAad, g (reprint author), univ freiburg, fak math & phys, hugstetter str 55, d-79106 freiburg, germany.
English AbstractA search for the standard model higgs boson in proton-proton collisions with the atlas detector at the lhc is presented. the datasets used correspond to integrated luminosities of approximately 4.8 fb(-1) collected at, root s = 7 tev in 2011 and 5.8 fb(-1) at root s = 8 tev in 2012. individual searches in the channels h -> zz(()*()) -> 4l, h -> gamma gamma and h -> ww (()*()) -> ev mu v in the 8 tev data are combined with previously published results of searches for h -> zz(()*()), ww(*()), b (b) over bar and tau(+)tau(-) in the 7 tev data and results from improved analyses of the h -> zz(()*()) -> 4l and h -> gamma gamma channels in the 7 tev data. clear evidence for the production of a neutral boson with a measured mass of 126.0 +/- 0.4 (stat) +/- 0.4 (sys) gev is presented. this observation, which has a significance of 5.9 standard deviations, corresponding to a background fluctuation probability of 1.7 x 10(-9), is compatible with the production and decay of the standard model higgs boson. (c) 2012 cern. published by elsevier b.v. all rights reserved.
SubjectPhysics
WOS SubjectPhysics, multidisciplinary
Indexed TypeSci
Language英语
WOS IDWos:000309621400001
Available Date2016-02-26