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Search for the Standard Model Higgs boson produced in association with a vector boson and decaying to a b-quark pair with the ATLAS detector
KTH, School of Engineering Sciences (SCI), Physics, Particle and Astroparticle Physics.
KTH, School of Engineering Sciences (SCI), Physics, Particle and Astroparticle Physics.
KTH, School of Engineering Sciences (SCI), Physics, Particle and Astroparticle Physics.
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Number of Authors: 2868
2012 (English)In: Physics Letters B, ISSN 0370-2693, E-ISSN 1873-2445, Vol. 718, no 2, 369-390 p.Article in journal (Refereed) Published
Abstract [en]

This Letter presents the results of a direct search with the ATLAS detector at the LHC for a Standard Model Higgs boson of mass 110 <= m(H) <= 130 GeV produced in association with a W or Z boson and decaying to b (b) over bar. Three decay channels are considered: ZH -> l(+)l(-)b (b) over bar, WH -> lvbb (b) over bar and ZH -> v (v) over bar(b) over bar where l corresponds to an electron or a muon. No evidence for Higgs boson production is observed in a dataset of 7 TeV pp collisions corresponding to 4.7 fb(-1) of integrated luminosity collected by ATLAS in 2011. Exclusion limits on Higgs boson production, at the 95% confidence level, of 2.5 to 5.5 times the Standard Model cross section are obtained in the mass range 110-130 GeV. The expected exclusion limits range between 2.5 and 4.9 for the same mass interval.

Place, publisher, year, edition, pages
2012. Vol. 718, no 2, 369-390 p.
Keyword [en]
Standard Model Higgs boson, ATLAS, LHC
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:kth:diva-118096DOI: 10.1016/j.physletb.2012.10.061ISI: 000312687700014Scopus ID: 2-s2.0-84869865464OAI: oai:DiVA.org:kth-118096DiVA: diva2:604718
Note

QC 20130212. Author count: 2868

Available from: 2013-02-12 Created: 2013-02-12 Last updated: 2017-12-06Bibliographically approved

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Strandberg, Jonas

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