A Study of $e^+ e^- \to H^0 A^0 \to b\bar{b}b\bar{b}$ at 3 TeV at CLIC

The precise determination of the masses of the CP-odd and -even heavy Higgs bosons is an important part of the study of Supersymmetry and its relation with cosmology through dark matter. This note presents a determination of the A0 boson mass with the e+e- -> H0A0 -> b b b b process for a dark...

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Detalles Bibliográficos
Autores principales: Battaglia, Marco, Ferrari, Pamela
Lenguaje:eng
Publicado: 2010
Materias:
Particle Physics - Experiment
Acceso en línea:http://cds.cern.ch/record/1275035
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author Battaglia, Marco
Ferrari, Pamela
author_facet Battaglia, Marco
Ferrari, Pamela
author_sort Battaglia, Marco
collection CERN
description The precise determination of the masses of the CP-odd and -even heavy Higgs bosons is an important part of the study of Supersymmetry and its relation with cosmology through dark matter. This note presents a determination of the A0 boson mass with the e+e- -> H0A0 -> b b b b process for a dark matter motivated cMSSM scenario with M(A) = 1141 GeV at CLIC. The analysis is performed with full simulation and reconstruction at 3 TeV accounting for beamstrahlung effects. SM and SUSY backgrounds are considered and the effect of the overlay of gamma gamma -> hadrons events on the signal is studied for various assumptions for the detector time-stamping capabilities. The di-jet mass resolution is improved by applying a kinematic fit. The A0 mass can be determined with a statistical accuracy of ~3-5 GeV for 3 inverse ab of statistics and 0 to 20 bunch crossings of gamma gamma background integrated in one event, respectively.
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institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2010
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spelling cern-12750352019-09-30T06:29:59Zhttp://cds.cern.ch/record/1275035engBattaglia, MarcoFerrari, PamelaA Study of $e^+ e^- \to H^0 A^0 \to b\bar{b}b\bar{b}$ at 3 TeV at CLICParticle Physics - ExperimentThe precise determination of the masses of the CP-odd and -even heavy Higgs bosons is an important part of the study of Supersymmetry and its relation with cosmology through dark matter. This note presents a determination of the A0 boson mass with the e+e- -> H0A0 -> b b b b process for a dark matter motivated cMSSM scenario with M(A) = 1141 GeV at CLIC. The analysis is performed with full simulation and reconstruction at 3 TeV accounting for beamstrahlung effects. SM and SUSY backgrounds are considered and the effect of the overlay of gamma gamma -> hadrons events on the signal is studied for various assumptions for the detector time-stamping capabilities. The di-jet mass resolution is improved by applying a kinematic fit. The A0 mass can be determined with a statistical accuracy of ~3-5 GeV for 3 inverse ab of statistics and 0 to 20 bunch crossings of gamma gamma background integrated in one event, respectively.arXiv:1006.5659CERN-LCD-2010-006oai:cds.cern.ch:12750352010-06-30
spellingShingle Particle Physics - Experiment
Battaglia, Marco
Ferrari, Pamela
A Study of $e^+ e^- \to H^0 A^0 \to b\bar{b}b\bar{b}$ at 3 TeV at CLIC
title A Study of $e^+ e^- \to H^0 A^0 \to b\bar{b}b\bar{b}$ at 3 TeV at CLIC
title_full A Study of $e^+ e^- \to H^0 A^0 \to b\bar{b}b\bar{b}$ at 3 TeV at CLIC
title_fullStr A Study of $e^+ e^- \to H^0 A^0 \to b\bar{b}b\bar{b}$ at 3 TeV at CLIC
title_full_unstemmed A Study of $e^+ e^- \to H^0 A^0 \to b\bar{b}b\bar{b}$ at 3 TeV at CLIC
title_short A Study of $e^+ e^- \to H^0 A^0 \to b\bar{b}b\bar{b}$ at 3 TeV at CLIC
title_sort study of $e^+ e^- \to h^0 a^0 \to b\bar{b}b\bar{b}$ at 3 tev at clic
topic Particle Physics - Experiment
url http://cds.cern.ch/record/1275035
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AT ferraripamela astudyofeetoh0a0tobbarbbbarbat3tevatclic
AT battagliamarco studyofeetoh0a0tobbarbbbarbat3tevatclic
AT ferraripamela studyofeetoh0a0tobbarbbbarbat3tevatclic

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