New two-loop contribution to electric dipole moment in supersymmetric theories

We calculate a new type of two-loop contributions to the electric dipole moments of the electron and neutron in supersymmetric theories. The new contributions are originated from the potential CP violation in the trilinear couplings of the Higgs bosons to the scalar-top or the scalar-bottom quarks....

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Detalles Bibliográficos
Autores principales: Chang, Darwin, Keung, Wai-Yee, Pilaftsis, Apostolos
Lenguaje:eng
Publicado: 1998
Materias:
Particle Physics - Phenomenology
Acceso en línea:https://dx.doi.org/10.1103/PhysRevLett.82.900
http://cds.cern.ch/record/369840
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author Chang, Darwin
Keung, Wai-Yee
Pilaftsis, Apostolos
author_facet Chang, Darwin
Keung, Wai-Yee
Pilaftsis, Apostolos
author_sort Chang, Darwin
collection CERN
description We calculate a new type of two-loop contributions to the electric dipole moments of the electron and neutron in supersymmetric theories. The new contributions are originated from the potential CP violation in the trilinear couplings of the Higgs bosons to the scalar-top or the scalar-bottom quarks. These couplings were previously very weakly constrained. The electric dipole moments are induced through a mechanism analogous to that due to Barr and Zee. We find observable effects for a sizeable portion of the parameter space related to the third generation scalar-quarks in the minimal supersymmetric standard model which cannot be excluded by earlier considerations.
id cern-369840
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 1998
record_format invenio
spelling cern-3698402023-01-31T08:30:13Zdoi:10.1103/PhysRevLett.82.900http://cds.cern.ch/record/369840engChang, DarwinKeung, Wai-YeePilaftsis, ApostolosNew two-loop contribution to electric dipole moment in supersymmetric theoriesParticle Physics - PhenomenologyWe calculate a new type of two-loop contributions to the electric dipole moments of the electron and neutron in supersymmetric theories. The new contributions are originated from the potential CP violation in the trilinear couplings of the Higgs bosons to the scalar-top or the scalar-bottom quarks. These couplings were previously very weakly constrained. The electric dipole moments are induced through a mechanism analogous to that due to Barr and Zee. We find observable effects for a sizeable portion of the parameter space related to the third generation scalar-quarks in the minimal supersymmetric standard model which cannot be excluded by earlier considerations.We calculate a new type of two-loop contributions to the electric dipole moments of the electron and neutron in supersymmetric theories. The new contributions are originated from the potential CP violation in the trilinear couplings of the Higgs bosons to the scalar-top or the scalar-bottom quarks. These couplings were previously very weakly constrained. The electric dipole moments are induced through a mechanism analogous to that due to Barr and Zee. We find observable effects for a sizeable portion of the parameter space related to the third generation scalar-quarks in the minimal supersymmetric standard model which cannot be excluded by earlier considerations.hep-ph/9811202CERN-TH-98-343FERMILAB-PUB-98-347-TUICHEP-TH-98-12CERN-TH-98-343FERMILAB-PUB-98-347-TUICHEP-TH-98-12oai:cds.cern.ch:3698401998-11-03
spellingShingle Particle Physics - Phenomenology
Chang, Darwin
Keung, Wai-Yee
Pilaftsis, Apostolos
New two-loop contribution to electric dipole moment in supersymmetric theories
title New two-loop contribution to electric dipole moment in supersymmetric theories
title_full New two-loop contribution to electric dipole moment in supersymmetric theories
title_fullStr New two-loop contribution to electric dipole moment in supersymmetric theories
title_full_unstemmed New two-loop contribution to electric dipole moment in supersymmetric theories
title_short New two-loop contribution to electric dipole moment in supersymmetric theories
title_sort new two-loop contribution to electric dipole moment in supersymmetric theories
topic Particle Physics - Phenomenology
url https://dx.doi.org/10.1103/PhysRevLett.82.900
http://cds.cern.ch/record/369840
work_keys_str_mv AT changdarwin newtwoloopcontributiontoelectricdipolemomentinsupersymmetrictheories
AT keungwaiyee newtwoloopcontributiontoelectricdipolemomentinsupersymmetrictheories
AT pilaftsisapostolos newtwoloopcontributiontoelectricdipolemomentinsupersymmetrictheories

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