Resonant CP Violation in MSSM Higgs Production and Decay at $\gamma \gamma$ Colliders

We study CP-violating phenomena in the production, mixing and decay of a coupled system of CP-violating neutral Higgs bosons at \gamma \gamma colliders, assuming a Minimal Supersymmetric Standard Model (MSSM) Higgs sector in which CP violation is radiatively induced by phases in the soft supersymmet...

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Detalles Bibliográficos
Autores principales: Ellis, John R., Lee, Jae Sik, Pilaftsis, Apostolos
Lenguaje:eng
Publicado: 2004
Materias:
Particle Physics - Phenomenology
Acceso en línea:https://dx.doi.org/10.1016/j.nuclphysb.2005.04.024
http://cds.cern.ch/record/808104
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author Ellis, John R.
Lee, Jae Sik
Pilaftsis, Apostolos
author_facet Ellis, John R.
Lee, Jae Sik
Pilaftsis, Apostolos
author_sort Ellis, John R.
collection CERN
description We study CP-violating phenomena in the production, mixing and decay of a coupled system of CP-violating neutral Higgs bosons at \gamma \gamma colliders, assuming a Minimal Supersymmetric Standard Model (MSSM) Higgs sector in which CP violation is radiatively induced by phases in the soft supersymmetry-breaking gaugino masses and third-generation trilinear squark couplings. We discuss CP asymmetries in the production and decays of \tau^+ \tau^-, {\bar b} b and {\bar t} t pairs. We find large asymmetries when two (or all three) neutral Higgs bosons are nearly degenerate with mass differences comparable to their decay widths, as happens naturally in the CP-violating MSSM for values of \tan\beta >~ 5 (30) and large (small) charged Higgs-boson masses.
id cern-808104
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2004
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spelling cern-8081042023-03-14T18:16:10Zdoi:10.1016/j.nuclphysb.2005.04.024http://cds.cern.ch/record/808104engEllis, John R.Lee, Jae SikPilaftsis, ApostolosResonant CP Violation in MSSM Higgs Production and Decay at $\gamma \gamma$ CollidersParticle Physics - PhenomenologyWe study CP-violating phenomena in the production, mixing and decay of a coupled system of CP-violating neutral Higgs bosons at \gamma \gamma colliders, assuming a Minimal Supersymmetric Standard Model (MSSM) Higgs sector in which CP violation is radiatively induced by phases in the soft supersymmetry-breaking gaugino masses and third-generation trilinear squark couplings. We discuss CP asymmetries in the production and decays of \tau^+ \tau^-, {\bar b} b and {\bar t} t pairs. We find large asymmetries when two (or all three) neutral Higgs bosons are nearly degenerate with mass differences comparable to their decay widths, as happens naturally in the CP-violating MSSM for values of \tan\beta >~ 5 (30) and large (small) charged Higgs-boson masses.We study CP-violating phenomena in the production, mixing and decay of a coupled system of CP-violating neutral Higgs bosons at \gamma \gamma colliders, assuming a Minimal Supersymmetric Standard Model (MSSM) Higgs sector in which CP violation is radiatively induced by phases in the soft supersymmetry-breaking gaugino masses and third-generation trilinear squark couplings. We discuss CP asymmetries in the production and decays of \mu^+ \mu^-, \tau^+ \tau^-, {\bar b} b and {\bar t} t pairs. We find large asymmetries when two (or all three) neutral Higgs bosons are nearly degenerate with mass differences comparable to their decay widths, as happens naturally in the CP-violating MSSM for values of \tan\beta >~ 5(30) and large (small) charged Higgs-boson masses.We study CP-violating phenomena in the production, mixing and decay of a coupled system of CP-violating neutral Higgs bosons at γγ colliders, assuming a Minimal Supersymmetric Standard Model (MSSM) Higgs sector in which CP violation is radiatively induced by phases in the soft supersymmetry-breaking gaugino masses and third-generation trilinear squark couplings. We discuss CP asymmetries in the production and decays of μ + μ − , τ + τ − , b ¯ b and t ¯ t pairs. We find large asymmetries when two (or all three) neutral Higgs bosons are nearly degenerate with mass differences comparable to their decay widths, as happens naturally in the CP-violating MSSM for values of tan β ≳ 5 (30) and large (small) charged Higgs-boson masses.hep-ph/0411379CERN-PH-TH-2004-232MC-TH-2004-04CERN-PH-TH-2004-232MC-TH-2004-04oai:cds.cern.ch:8081042004-11-29
spellingShingle Particle Physics - Phenomenology
Ellis, John R.
Lee, Jae Sik
Pilaftsis, Apostolos
Resonant CP Violation in MSSM Higgs Production and Decay at $\gamma \gamma$ Colliders
title Resonant CP Violation in MSSM Higgs Production and Decay at $\gamma \gamma$ Colliders
title_full Resonant CP Violation in MSSM Higgs Production and Decay at $\gamma \gamma$ Colliders
title_fullStr Resonant CP Violation in MSSM Higgs Production and Decay at $\gamma \gamma$ Colliders
title_full_unstemmed Resonant CP Violation in MSSM Higgs Production and Decay at $\gamma \gamma$ Colliders
title_short Resonant CP Violation in MSSM Higgs Production and Decay at $\gamma \gamma$ Colliders
title_sort resonant cp violation in mssm higgs production and decay at $\gamma \gamma$ colliders
topic Particle Physics - Phenomenology
url https://dx.doi.org/10.1016/j.nuclphysb.2005.04.024
http://cds.cern.ch/record/808104
work_keys_str_mv AT ellisjohnr resonantcpviolationinmssmhiggsproductionanddecayatgammagammacolliders
AT leejaesik resonantcpviolationinmssmhiggsproductionanddecayatgammagammacolliders
AT pilaftsisapostolos resonantcpviolationinmssmhiggsproductionanddecayatgammagammacolliders

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