A search for a standard model Higgs boson decaying into a W +W- pair is presented, using CMS proton-proton collision data samples both at 7 TeV and 8 TeV center-of-mass energy, corresponding to an integrated luminosity of 4.9 ± 0.2 fb-1 and 12.1 ± 0.5 fb-1 respectively. Both fully-leptonic and semi-leptonic W decay final states are considered. Upper limits are set on the Higgs boson production relative to the standard model expectation. The standard model Higgs boson is excluded at 95% confidence level in the mass ranges [128-600] GeV and [215-490] + [525-600] GeV using the fully-leptonic and semi-leptonic channels respectively. In the fully-leptonic final state, an excess of events is observed above background which is consistent with the expectations from a standard model Higgs boson of mass 125 GeV and has a statistical significance of 3.1 standard deviations. © 2013 IOP Publishing Ltd.

DI MATTEO, L. (2013). Search for Higgs decaying to WW at CMS. JOURNAL OF PHYSICS. CONFERENCE SERIES, 455, 012030 [10.1088/1742-6596/455/1/012030].

Search for Higgs decaying to WW at CMS

DI MATTEO, LEONARDO
2013

Abstract

A search for a standard model Higgs boson decaying into a W +W- pair is presented, using CMS proton-proton collision data samples both at 7 TeV and 8 TeV center-of-mass energy, corresponding to an integrated luminosity of 4.9 ± 0.2 fb-1 and 12.1 ± 0.5 fb-1 respectively. Both fully-leptonic and semi-leptonic W decay final states are considered. Upper limits are set on the Higgs boson production relative to the standard model expectation. The standard model Higgs boson is excluded at 95% confidence level in the mass ranges [128-600] GeV and [215-490] + [525-600] GeV using the fully-leptonic and semi-leptonic channels respectively. In the fully-leptonic final state, an excess of events is observed above background which is consistent with the expectations from a standard model Higgs boson of mass 125 GeV and has a statistical significance of 3.1 standard deviations. © 2013 IOP Publishing Ltd.
Abstract in rivista
Higgs, WW, CMS
English
2013
455
012030
none
DI MATTEO, L. (2013). Search for Higgs decaying to WW at CMS. JOURNAL OF PHYSICS. CONFERENCE SERIES, 455, 012030 [10.1088/1742-6596/455/1/012030].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/48121
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