Unification Bounds on the Possible N=2 Supersymmetry-Breaking Scale

In this letter, the possible appearance of N=2 supersymmetry at a low energy scale is investigated in the context of unified theories. Introducing mirror particles for all the gauge and matter multiplets of the Minimal Supersymmetric extension of the Standard Model (MSSM), the measured values of sin...

Descripción completa

Detalles Bibliográficos
Autores principales: Antoniadis, Ignatios, Ellis, John R., Leontaris, G.K.
Lenguaje:eng
Publicado: 1997
Materias:
Particle Physics - Phenomenology
Acceso en línea:https://dx.doi.org/10.1016/S0370-2693(97)00283-9
http://cds.cern.ch/record/318207
_version_ 1780890473346367488
author Antoniadis, Ignatios
Ellis, John R.
Leontaris, G.K.
author_facet Antoniadis, Ignatios
Ellis, John R.
Leontaris, G.K.
author_sort Antoniadis, Ignatios
collection CERN
description In this letter, the possible appearance of N=2 supersymmetry at a low energy scale is investigated in the context of unified theories. Introducing mirror particles for all the gauge and matter multiplets of the Minimal Supersymmetric extension of the Standard Model (MSSM), the measured values of sin^2 \theta_W and \alpha_3(M_Z) indicate that the N=2 threshold scale M_{S_2} cannot be lower than \sim 10^{14}GeV. If the U(1) normalization coefficient k is treated as a free parameter, M_{S_2} can be as low as 10^9 GeV. On the other hand, if mirror quarks and leptons are absent and a non-standard value for k is used, N=2 supersymmetry breaking could in principle occur at the electroweak scale.
id cern-318207
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 1997
record_format invenio
spelling cern-3182072023-03-14T18:54:08Zdoi:10.1016/S0370-2693(97)00283-9http://cds.cern.ch/record/318207engAntoniadis, IgnatiosEllis, John R.Leontaris, G.K.Unification Bounds on the Possible N=2 Supersymmetry-Breaking ScaleParticle Physics - PhenomenologyIn this letter, the possible appearance of N=2 supersymmetry at a low energy scale is investigated in the context of unified theories. Introducing mirror particles for all the gauge and matter multiplets of the Minimal Supersymmetric extension of the Standard Model (MSSM), the measured values of sin^2 \theta_W and \alpha_3(M_Z) indicate that the N=2 threshold scale M_{S_2} cannot be lower than \sim 10^{14}GeV. If the U(1) normalization coefficient k is treated as a free parameter, M_{S_2} can be as low as 10^9 GeV. On the other hand, if mirror quarks and leptons are absent and a non-standard value for k is used, N=2 supersymmetry breaking could in principle occur at the electroweak scale.In this letter, the possible appearance of N=2 supersymmetry at a low energy scale is investigated in the context of unified theories. Introducing mirror particles for all the gauge and matter multiplets of the Minimal Supersymmetric extension of the Standard Model (MSSM), the measured values of sin~2 \theta_W and \alpha_3(M_Z) indicate that the N=2 threshold scale M_{S_2} cannot be lower than \sim 10~{14}GeV. If the U(1) normalization coefficient k is treated as a free parameter, M_{S_2} can be as low as 10~9 GeV. On the other hand, if mirror quarks and leptons are absent and a non-standard value for k is used, N=2 supersymmetry breaking could in principle occur at the electroweak scale.In this letter, the possible appearance of N = 2 supersymmetry at a low energy scale is investigated in the context of unified theories. Introducing mirror particles for all the gauge and matter multiplets of the minimal supersymmetric extension of the Standard Model (MSSM), the measured values of sin 2 θ W and α 3 ( M Z ) indicate that the N = 2 threshold scale M S 2 cannot be lower than ∼ 10 14 GeV. If the U (1) normalization coefficient k is treated as a free parameter, M S 2 can be as low as 10 9 GeV. On the other hand, if mirror quarks and leptons are absent and a non-standard value for k is used, N = 2 supersymmetry breaking could in principle occur at the electroweak scale.hep-ph/9701292CERN-TH-96-367CPTH-S490-0197IOA-TH-97-001CERN-TH-96-367CPTH-S-490IOA-TH-97-001oai:cds.cern.ch:3182071997-01-14
spellingShingle Particle Physics - Phenomenology
Antoniadis, Ignatios
Ellis, John R.
Leontaris, G.K.
Unification Bounds on the Possible N=2 Supersymmetry-Breaking Scale
title Unification Bounds on the Possible N=2 Supersymmetry-Breaking Scale
title_full Unification Bounds on the Possible N=2 Supersymmetry-Breaking Scale
title_fullStr Unification Bounds on the Possible N=2 Supersymmetry-Breaking Scale
title_full_unstemmed Unification Bounds on the Possible N=2 Supersymmetry-Breaking Scale
title_short Unification Bounds on the Possible N=2 Supersymmetry-Breaking Scale
title_sort unification bounds on the possible n=2 supersymmetry-breaking scale
topic Particle Physics - Phenomenology
url https://dx.doi.org/10.1016/S0370-2693(97)00283-9
http://cds.cern.ch/record/318207
work_keys_str_mv AT antoniadisignatios unificationboundsonthepossiblen2supersymmetrybreakingscale
AT ellisjohnr unificationboundsonthepossiblen2supersymmetrybreakingscale
AT leontarisgk unificationboundsonthepossiblen2supersymmetrybreakingscale

Ejemplares similares