In this paper I discuss the search for a Standard Model (SM) Higgs boson in the diphoton plus missing transverse energy (missing ET or ETMISS) channel using 20.7 fb-1 of data recorded by the ATLAS detector in the year 2012. Higgs boson at LHC can be generated through different processes: gluon-gluon fusion (∼85%), vector boson fusion (∼10%), W/Z associated production (∼5%) and top-antitop fusion (< 1%). The applied selection is optimized to isolate events from Higgs boson production associated with a W or Z boson requiring the presence of ETMISS from Z/W decay into neutrinos in addition to two isolated energetic photons. The sensitivity of this analysis is presented and found to be at a level above 5 times the predicted Standard Model cross-section.

Search for a SM Higgs boson in the diphoton plus eTMISS channel / S.M. Mazza. - In: IL NUOVO CIMENTO DELLA SOCIETÀ ITALIANA DI FISICA. C, GEOPHYSICS AND SPACE PHYSICS. - ISSN 1124-1896. - 37:4(2014), pp. 19-29. ((Intervento presentato al convegno SIF Congress nel 2013 [10.1393/ncc/i2014-11786-2].

Search for a SM Higgs boson in the diphoton plus eTMISS channel

S.M. Mazza
Primo
2014

Abstract

In this paper I discuss the search for a Standard Model (SM) Higgs boson in the diphoton plus missing transverse energy (missing ET or ETMISS) channel using 20.7 fb-1 of data recorded by the ATLAS detector in the year 2012. Higgs boson at LHC can be generated through different processes: gluon-gluon fusion (∼85%), vector boson fusion (∼10%), W/Z associated production (∼5%) and top-antitop fusion (< 1%). The applied selection is optimized to isolate events from Higgs boson production associated with a W or Z boson requiring the presence of ETMISS from Z/W decay into neutrinos in addition to two isolated energetic photons. The sensitivity of this analysis is presented and found to be at a level above 5 times the predicted Standard Model cross-section.
Settore FIS/01 - Fisica Sperimentale
Settore FIS/04 - Fisica Nucleare e Subnucleare
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2434/249275
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