Cargando…

Search for Higgs Boson at LHC in the Reaction $pp\to\gamma\gamma+jet$ at a Low Luminosity

We discuss the SM Higgs discovery potential of the LHC in the channel pp->H+jet->gamma+gamma+jet when the jet is observed at sufficiently high Pt and a small rapidity to be reliably identified. We calculate all the signal subprocesses and the irreducible background with realistic kinematical c...

Descripción completa

Detalles Bibliográficos
Autores principales: Dubinin, M N, Ilyin, V A, Savrin, V I
Lenguaje:eng
Publicado: 1997
Materias:
Acceso en línea:http://cds.cern.ch/record/340787
_version_ 1780891505602330624
author Dubinin, M N
Ilyin, V A
Savrin, V I
author_facet Dubinin, M N
Ilyin, V A
Savrin, V I
author_sort Dubinin, M N
collection CERN
description We discuss the SM Higgs discovery potential of the LHC in the channel pp->H+jet->gamma+gamma+jet when the jet is observed at sufficiently high Pt and a small rapidity to be reliably identified. We calculate all the signal subprocesses and the irreducible background with realistic kinematical cuts. The reducible QCD background is also estimated. We conclude that the channel gamma+gamma+jet can give about 120-200 signal events for Higgs mass MH=100-140 GeV at the integrated luminosity of 30 inverse fb. This signal rate should be compared with only 330-600 events for the irreducible background per two-photon invariant mass interval of 2 GeV. We estimate the QCD reducible background at the level of 20% of the irreducible one. Thus, one may hope that the Higgs boson can be discovered already during the LHC operation at a low luminosity. At a high luminosity the observation of several hundreds of high Pt Higgs bosons in this channel will be possible with significance higher than 15 for L=100 inverse fb.
id cern-340787
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 1997
record_format invenio
spelling cern-3407872019-09-30T06:29:59Zhttp://cds.cern.ch/record/340787engDubinin, M NIlyin, V ASavrin, V ISearch for Higgs Boson at LHC in the Reaction $pp\to\gamma\gamma+jet$ at a Low LuminosityParticle Physics - PhenomenologyWe discuss the SM Higgs discovery potential of the LHC in the channel pp->H+jet->gamma+gamma+jet when the jet is observed at sufficiently high Pt and a small rapidity to be reliably identified. We calculate all the signal subprocesses and the irreducible background with realistic kinematical cuts. The reducible QCD background is also estimated. We conclude that the channel gamma+gamma+jet can give about 120-200 signal events for Higgs mass MH=100-140 GeV at the integrated luminosity of 30 inverse fb. This signal rate should be compared with only 330-600 events for the irreducible background per two-photon invariant mass interval of 2 GeV. We estimate the QCD reducible background at the level of 20% of the irreducible one. Thus, one may hope that the Higgs boson can be discovered already during the LHC operation at a low luminosity. At a high luminosity the observation of several hundreds of high Pt Higgs bosons in this channel will be possible with significance higher than 15 for L=100 inverse fb.hep-ph/9712335oai:cds.cern.ch:3407871997-12-15
spellingShingle Particle Physics - Phenomenology
Dubinin, M N
Ilyin, V A
Savrin, V I
Search for Higgs Boson at LHC in the Reaction $pp\to\gamma\gamma+jet$ at a Low Luminosity
title Search for Higgs Boson at LHC in the Reaction $pp\to\gamma\gamma+jet$ at a Low Luminosity
title_full Search for Higgs Boson at LHC in the Reaction $pp\to\gamma\gamma+jet$ at a Low Luminosity
title_fullStr Search for Higgs Boson at LHC in the Reaction $pp\to\gamma\gamma+jet$ at a Low Luminosity
title_full_unstemmed Search for Higgs Boson at LHC in the Reaction $pp\to\gamma\gamma+jet$ at a Low Luminosity
title_short Search for Higgs Boson at LHC in the Reaction $pp\to\gamma\gamma+jet$ at a Low Luminosity
title_sort search for higgs boson at lhc in the reaction $pp\to\gamma\gamma+jet$ at a low luminosity
topic Particle Physics - Phenomenology
url http://cds.cern.ch/record/340787
work_keys_str_mv AT dubininmn searchforhiggsbosonatlhcinthereactionpptogammagammajetatalowluminosity
AT ilyinva searchforhiggsbosonatlhcinthereactionpptogammagammajetatalowluminosity
AT savrinvi searchforhiggsbosonatlhcinthereactionpptogammagammajetatalowluminosity