Collaboration, ATLAS, Alam, Muhammad, Berry, Tracey, Boisvert, Veronique, Boorman, Gary, Cooper-Smith, Neil, Cowan, Glen, Edwards, Clive, George, Simon, Goncalo, Ricardo, Hayden, Daniel, Misiejuk, Andrzej, Rose, Matthew, Strong, J.A. and Teixeira-Dias, Pedro (2011) Limits on the production of the Standard Model Higgs Boson in pp collisions at sqrt(s) =7 TeV with the ATLAS detector. European Physical Journal C: Particles and Fields, 71 (9).
Full text access: Open
A search for the Standard Model Higgs boson at the Large Hadron Collider (LHC) running at a centre-of-mass energy of 7 TeV is reported, based on a total integrated luminosity of up to 40 pb^-1 collected by the ATLAS detector in 2010. Several Higgs boson decay channels: H -> {\gamma}{\gamma}, H -> ZZ (*) -> llll, H -> ZZ -> ll{\nu}{\nu}, H -> ZZ -> llqq, H -> W W (*) -> l{\nu}l{\nu} and H -> W W -> l{\nu}qq (l is e, {\mu}) are combined in a mass range from 110 GeV to 600 GeV. The highest sensitivity is achieved in the mass range between 160 GeV and 170 GeV, where the expected 95% CL exclusion sensitivity is at Higgs boson production cross sections 2.3 times the Standard Model prediction. Upper limits on the cross section for its production are determined. Models with a fourth generation of heavy leptons and quarks with Standard Model-like couplings to the Higgs boson are also investigated and are excluded for a Higgs boson mass in the range from 140 GeV to 185 GeV.
This is a Submitted version This version's date is: 9/2011 This item is not peer reviewed
https://repository.royalholloway.ac.uk/items/4070832c-c0fe-c29e-fc0a-9e7d2a533ce0/5/
Deposited by Research Information System (atira) on 02-Aug-2013 in Royal Holloway Research Online.Last modified on 02-Aug-2013
19 pages plus author list (31 pages total), 12 figures, 10 tables, final version as it appears in EPJC