Supersymmetry and SU(2) x U(1) Breaking with Naturally Vanishing Vacuum Energy

We show how the spontaneous breaking of local N=1 supersymmetry and of the SU(2)xU(1) gauge symmetry can be simultaneously realized, with naturally vanishing tree-level vacuum energy, in superstring effective supergravities. Both the gravitino mass m_{3/2} and the electroweak scale m_Z are classical...

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Autores principales: Brignole, Andrea, Zwirner, Fabio
Lenguaje:eng
Publicado: 1994
Materias:
Particle Physics - Theory
Acceso en línea:https://dx.doi.org/10.1016/0370-2693(94)01361-F
http://cds.cern.ch/record/268748
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author Brignole, Andrea
Zwirner, Fabio
author_facet Brignole, Andrea
Zwirner, Fabio
author_sort Brignole, Andrea
collection CERN
description We show how the spontaneous breaking of local N=1 supersymmetry and of the SU(2)xU(1) gauge symmetry can be simultaneously realized, with naturally vanishing tree-level vacuum energy, in superstring effective supergravities. Both the gravitino mass m_{3/2} and the electroweak scale m_Z are classically undetermined, and slide along moduli directions that include the Higgs flat direction |H_1^0| = |H_2^0|. There are important differences with conventional supergravity models: the goldstino has components along the higgsino direction; SU(2) x U(1) breaking occurs already at the classical level; the scales m_{3/2} and m_Z, the gauge couplings, the lightest Higgs mass and the cosmological constant are entirely determined by quantum corrections.
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institution Organización Europea para la Investigación Nuclear
language eng
publishDate 1994
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spelling cern-2687482023-03-14T18:56:43Zdoi:10.1016/0370-2693(94)01361-Fhttp://cds.cern.ch/record/268748engBrignole, AndreaZwirner, FabioSupersymmetry and SU(2) x U(1) Breaking with Naturally Vanishing Vacuum EnergyParticle Physics - TheoryWe show how the spontaneous breaking of local N=1 supersymmetry and of the SU(2)xU(1) gauge symmetry can be simultaneously realized, with naturally vanishing tree-level vacuum energy, in superstring effective supergravities. Both the gravitino mass m_{3/2} and the electroweak scale m_Z are classically undetermined, and slide along moduli directions that include the Higgs flat direction |H_1^0| = |H_2^0|. There are important differences with conventional supergravity models: the goldstino has components along the higgsino direction; SU(2) x U(1) breaking occurs already at the classical level; the scales m_{3/2} and m_Z, the gauge couplings, the lightest Higgs mass and the cosmological constant are entirely determined by quantum corrections.We show how the spontaneous breaking of local N=1 supersymmetry and of the SU(2)xU(1) gauge symmetry can be simultaneously realized, with naturally vanishing tree-level vacuum energy, in superstring effective supergravities. Both the gravitino mass m_{3/2} and the electroweak scale m_Z are classically undetermined, and slide along moduli directions that include the Higgs flat direction |H_1~0| = |H_2~0|. There are important differences with conventional supergravity models: the goldstino has components along the higgsino direction; SU(2) x U(1) breaking occurs already at the classical level; the scales m_{3/2} and m_Z, the gauge couplings, the lightest Higgs mass and the cosmological constant are entirely determined by quantum corrections.We show how the spontaneous breaking of local N=1 supersymmetry and of the SU(2)xU(1) gauge symmetry can be simultaneously realized, with naturally vanishing tree-level vacuum energy, in superstring effective supergravities. Both the gravitino mass m_{3/2} and the electroweak scale m_Z are classically undetermined, and slide along moduli directions that include the Higgs flat direction |H_1~0| = |H_2~0|. There are important differences with conventional supergravity models: the goldstino has components along the higgsino direction; SU(2) x U(1) breaking occurs already at the classical level; the scales m_{3/2} and m_Z, the gauge couplings, the lightest Higgs mass and the cosmological constant are entirely determined by quantum corrections.We show how the spontaneous breaking of local N = 1 supersymmetry and of the SU(2) × U(1) gauge symmetry can be simultaneously realized, with naturally vanishing tree-level vacuum energy, in superstring effective supergravities. Both the gravition mass m 3 2 and the electroweak scale m Z are classically undetermined, and slide along moduli directions that include the Higgs flat direction | H 1 0 | = | H 2 0 |. There are important differences with conventional supergravity goldstino has components along the higgsino direction; SU(2) × U(1) breaking occurs already at the classical level; the scales m 3 2 and m Z , the rauge couplings, the lightest Higgs mass and the cosmological constant are entirely determined by quantum corrections.hep-th/9409099CERN-TH-7439-94LBL-36117CERN-TH-7439-94LBL-36117oai:cds.cern.ch:2687481994-09-18
spellingShingle Particle Physics - Theory
Brignole, Andrea
Zwirner, Fabio
Supersymmetry and SU(2) x U(1) Breaking with Naturally Vanishing Vacuum Energy
title Supersymmetry and SU(2) x U(1) Breaking with Naturally Vanishing Vacuum Energy
title_full Supersymmetry and SU(2) x U(1) Breaking with Naturally Vanishing Vacuum Energy
title_fullStr Supersymmetry and SU(2) x U(1) Breaking with Naturally Vanishing Vacuum Energy
title_full_unstemmed Supersymmetry and SU(2) x U(1) Breaking with Naturally Vanishing Vacuum Energy
title_short Supersymmetry and SU(2) x U(1) Breaking with Naturally Vanishing Vacuum Energy
title_sort supersymmetry and su(2) x u(1) breaking with naturally vanishing vacuum energy
topic Particle Physics - Theory
url https://dx.doi.org/10.1016/0370-2693(94)01361-F
http://cds.cern.ch/record/268748
work_keys_str_mv AT brignoleandrea supersymmetryandsu2xu1breakingwithnaturallyvanishingvacuumenergy
AT zwirnerfabio supersymmetryandsu2xu1breakingwithnaturallyvanishingvacuumenergy

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