Non-perturbative unification in the light of LEP results

We consider an alternative to conventional GUTs originally proposed by Maiani, Parisi and Petronzio, where owing to the existence of extra fermion generations at some intermediate scale, the gauge couplings become large at high energies. We first comment on how the non- supersymmetric version of thi...

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Detalles Bibliográficos
Autores principales: Brahmachari, Biswajoy, Sarkar, Utpal, Sridhar, K.
Lenguaje:eng
Publicado: 1993
Materias:
Particle Physics - Phenomenology
Acceso en línea:https://dx.doi.org/10.1142/S0217732393003779
http://cds.cern.ch/record/250387
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author Brahmachari, Biswajoy
Sarkar, Utpal
Sridhar, K.
author_facet Brahmachari, Biswajoy
Sarkar, Utpal
Sridhar, K.
author_sort Brahmachari, Biswajoy
collection CERN
description We consider an alternative to conventional GUTs originally proposed by Maiani, Parisi and Petronzio, where owing to the existence of extra fermion generations at some intermediate scale, the gauge couplings become large at high energies. We first comment on how the non- supersymmetric version of this scenario is ruled out; we then consider the two-loop evolution of the couplings in the supersymmetric extension of this scenario, and check whether such a scenario is feasible in the light of the precies values of couplings now available from LEP.
id cern-250387
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 1993
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spelling cern-2503872020-07-23T02:47:30Zdoi:10.1142/S0217732393003779http://cds.cern.ch/record/250387engBrahmachari, BiswajoySarkar, UtpalSridhar, K.Non-perturbative unification in the light of LEP resultsParticle Physics - PhenomenologyWe consider an alternative to conventional GUTs originally proposed by Maiani, Parisi and Petronzio, where owing to the existence of extra fermion generations at some intermediate scale, the gauge couplings become large at high energies. We first comment on how the non- supersymmetric version of this scenario is ruled out; we then consider the two-loop evolution of the couplings in the supersymmetric extension of this scenario, and check whether such a scenario is feasible in the light of the precies values of couplings now available from LEP.We consider an alternative to conventional GUTs originally proposed by Maiani, Parisi and Petronzio, where owing to the existence of extra fermion generations at some intermediate scale, the gauge couplings become large at high energies. We first comment on how the non- supersymmetric version of this scenario is ruled out; we then consider the two-loop evolution of the couplings in the supersymmetric extension of this scenario, and check whether such a scenario is feasible in the light of the precies values of couplings now available from LEP.CERN-TH-6913-93hep-ph/9306269CERN-TH-6913-93oai:cds.cern.ch:2503871993
spellingShingle Particle Physics - Phenomenology
Brahmachari, Biswajoy
Sarkar, Utpal
Sridhar, K.
Non-perturbative unification in the light of LEP results
title Non-perturbative unification in the light of LEP results
title_full Non-perturbative unification in the light of LEP results
title_fullStr Non-perturbative unification in the light of LEP results
title_full_unstemmed Non-perturbative unification in the light of LEP results
title_short Non-perturbative unification in the light of LEP results
title_sort non-perturbative unification in the light of lep results
topic Particle Physics - Phenomenology
url https://dx.doi.org/10.1142/S0217732393003779
http://cds.cern.ch/record/250387
work_keys_str_mv AT brahmacharibiswajoy nonperturbativeunificationinthelightoflepresults
AT sarkarutpal nonperturbativeunificationinthelightoflepresults
AT sridhark nonperturbativeunificationinthelightoflepresults

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