Search for the Standard Model Higgs Boson in the Diphoton Decay Channel with 4.9 fb(-1) of pp Collision Data at root s=7 TeV with ATLAS
2012 (English)In: Physical Review Letters, ISSN 0031-9007, Vol. 108, no 11, 111803- p.Article in journal (Refereed) Published
A search for the standard model Higgs boson is performed in the diphoton decay channel. The data used correspond to an integrated luminosity of 4.9 fb(-1) collected with the ATLAS detector at the Large Hadron Collider in proton-proton collisions at a center-of-mass energy of root s = 7 TeV. In the diphoton mass range 110-150 GeV, the largest excess with respect to the background-only hypothesis is observed at 126.5 GeV, with a local significance of 2.8 standard deviations. Taking the look-elsewhere effect into account in the range 110-150 GeV, this significance becomes 1.5 standard deviations. The standard model Higgs boson is excluded at 95% confidence level in the mass ranges of 113-115 GeV and 134.5-136 GeV.
Place, publisher, year, edition, pages
2012. Vol. 108, no 11, 111803- p.
IdentifiersURN: urn:nbn:se:uu:diva-175037DOI: 10.1103/PhysRevLett.108.111803ISI: 000301411300006OAI: oai:DiVA.org:uu-175037DiVA: diva2:529905
With 3052 more authors from the ATLAS Collaboration.2012-05-312012-05-312012-05-31Bibliographically approved