Publicação
SU(5) x SU(5) unification revisited
| Resumo: | The idea of grand unification in a minimal supersymmetric SU(5) x SU(5) framework is revisited. It is shown that the unification of gauge couplings into a unique coupling constant can be achieved at a high-energy scale compatible with proton decay constraints. This requires the addition of minimal particle content at intermediate energy scales. In particular, the introduction of the SU(2)(L) triplets belonging to the (15, 1)+((15) over bar, 1) representations, as well as of the scalar triplet Sigma(3) and octet Sigma(8) in the (24, 1) representation, turns out to be crucial for unification. The masses of these intermediate particles can vary over a wide range, and even lie in the TeV region. In contrast, the exotic vector-like fermions must be heavy enough and have masses above 10(10) GeV. We also show that, if the SU(5) x SU(5) theory is embedded into a heterotic string scenario, it is not possible to achieve gauge coupling unification with gravity at the perturbative string scale. |
|---|---|
| Autores principais: | Emmanuel-Costa, David |
| Outros Autores: | Franco, Edison T.; Felipe, Ricardo Gonzalez |
| Assunto: | Supersymmetric Gauge theory Gauge symmetry GUT Grand unified theories Heterotic String theory R-parity conservation Proton-decay SU(5)XSU(5) unification Supersymmetric guts Gauge Models Couplings Stability |
| Ano: | 2011 |
| País: | Portugal |
| Tipo de documento: | artigo |
| Tipo de acesso: | acesso aberto |
| Instituição associada: | Instituto Politécnico de Lisboa |
| Idioma: | inglês |
| Origem: | Repositório Científico do Instituto Politécnico de Lisboa |
| _version_ | 1866887351923376128 |
|---|---|
| author | Emmanuel-Costa, David |
| author2 | Franco, Edison T. Felipe, Ricardo Gonzalez |
| author2_role | author author |
| author_facet | Emmanuel-Costa, David Franco, Edison T. Felipe, Ricardo Gonzalez |
| author_role | author |
| contributor_name_str_mv | RCIPL |
| country_str | PT |
| creators_json_txt | [{\"Person.name\":\"Emmanuel-Costa, David\"},{\"Person.name\":\"Franco, Edison T.\"},{\"Person.name\":\"Felipe, Ricardo Gonzalez\"}] |
| datacite.contributors.contributor.contributorName.fl_str_mv | RCIPL |
| datacite.creators.creator.creatorName.fl_str_mv | Emmanuel-Costa, David Franco, Edison T. Felipe, Ricardo Gonzalez |
| datacite.date.Accepted.fl_str_mv | 2011-08-01T00:00:00Z |
| datacite.date.available.fl_str_mv | 2012-09-12T09:34:36Z |
| datacite.date.embargoed.fl_str_mv | 2012-09-12T09:34:36Z |
| datacite.rights.fl_str_mv | http://purl.org/coar/access_right/c_abf2 |
| datacite.subjects.subject.fl_str_mv | Supersymmetric Gauge theory Gauge symmetry GUT Grand unified theories Heterotic String theory R-parity conservation Proton-decay SU(5)XSU(5) unification Supersymmetric guts Gauge Models Couplings Stability |
| datacite.titles.title.fl_str_mv | SU(5) x SU(5) unification revisited |
| dc.contributor.none.fl_str_mv | RCIPL |
| dc.creator.none.fl_str_mv | Emmanuel-Costa, David Franco, Edison T. Felipe, Ricardo Gonzalez |
| dc.date.Accepted.fl_str_mv | 2011-08-01T00:00:00Z |
| dc.date.available.fl_str_mv | 2012-09-12T09:34:36Z |
| dc.date.embargoed.fl_str_mv | 2012-09-12T09:34:36Z |
| dc.format.none.fl_str_mv | application/pdf |
| dc.identifier.none.fl_str_mv | http://hdl.handle.net/10400.21/1780 |
| dc.language.none.fl_str_mv | eng |
| dc.publisher.none.fl_str_mv | Springer |
| dc.rights.none.fl_str_mv | http://purl.org/coar/access_right/c_abf2 |
| dc.subject.none.fl_str_mv | Supersymmetric Gauge theory Gauge symmetry GUT Grand unified theories Heterotic String theory R-parity conservation Proton-decay SU(5)XSU(5) unification Supersymmetric guts Gauge Models Couplings Stability |
| dc.title.fl_str_mv | SU(5) x SU(5) unification revisited |
| dc.type.none.fl_str_mv | http://purl.org/coar/resource_type/c_6501 |
| description | The idea of grand unification in a minimal supersymmetric SU(5) x SU(5) framework is revisited. It is shown that the unification of gauge couplings into a unique coupling constant can be achieved at a high-energy scale compatible with proton decay constraints. This requires the addition of minimal particle content at intermediate energy scales. In particular, the introduction of the SU(2)(L) triplets belonging to the (15, 1)+((15) over bar, 1) representations, as well as of the scalar triplet Sigma(3) and octet Sigma(8) in the (24, 1) representation, turns out to be crucial for unification. The masses of these intermediate particles can vary over a wide range, and even lie in the TeV region. In contrast, the exotic vector-like fermions must be heavy enough and have masses above 10(10) GeV. We also show that, if the SU(5) x SU(5) theory is embedded into a heterotic string scenario, it is not possible to achieve gauge coupling unification with gravity at the perturbative string scale. |
| dirty | 0 |
| eu_rights_str_mv | openAccess |
| format | article |
| fulltext.url.fl_str_mv | https://repositorio.ipl.pt/bitstreams/9097dba6-7fa5-497a-8bdc-de47ac67c6ca/download |
| id | ripl_6c852e98b53f3a052d3308b4ece0cb13 |
| identifier.url.fl_str_mv | http://hdl.handle.net/10400.21/1780 |
| instacron_str | ipl |
| institution | Instituto Politécnico de Lisboa |
| instname_str | Instituto Politécnico de Lisboa |
| language | eng |
| network_acronym_str | ripl |
| network_name_str | Repositório Científico do Instituto Politécnico de Lisboa |
| oai_identifier_str | oai:repositorio.ipl.pt:10400.21/1780 |
| organization_str_mv | urn:organizationAcronym:ipl |
| person_str_mv | Emmanuel-Costa, David Franco, Edison T. Felipe, Ricardo Gonzalez |
| publishDate | 2011 |
| publisher.none.fl_str_mv | Springer |
| reponame_str | Repositório Científico do Instituto Politécnico de Lisboa |
| repository_id_str | urn:repositoryAcronym:ripl |
| service_str_mv | urn:repositoryAcronym:ripl |
| spelling | engSpringerporThe idea of grand unification in a minimal supersymmetric SU(5) x SU(5) framework is revisited. It is shown that the unification of gauge couplings into a unique coupling constant can be achieved at a high-energy scale compatible with proton decay constraints. This requires the addition of minimal particle content at intermediate energy scales. In particular, the introduction of the SU(2)(L) triplets belonging to the (15, 1)+((15) over bar, 1) representations, as well as of the scalar triplet Sigma(3) and octet Sigma(8) in the (24, 1) representation, turns out to be crucial for unification. The masses of these intermediate particles can vary over a wide range, and even lie in the TeV region. In contrast, the exotic vector-like fermions must be heavy enough and have masses above 10(10) GeV. We also show that, if the SU(5) x SU(5) theory is embedded into a heterotic string scenario, it is not possible to achieve gauge coupling unification with gravity at the perturbative string scale.application/pdfporSU(5) x SU(5) unification revisitedEmmanuel-Costa, DavidFranco, Edison T.Felipe, Ricardo GonzalezHostingInstitutionOrganizationalRCIPLe-mailmailto:rcaap@sp.ipl.ptrcaap@sp.ipl.ptISSNIsPartOf1126-67082012-09-12T09:34:36Z2011-082011-08-01T00:00:00ZHandlehttp://hdl.handle.net/10400.21/1780http://purl.org/coar/access_right/c_abf2open accessSupersymmetric Gauge theoryGauge symmetryGUTGrand unified theoriesHeterotic String theoryR-parity conservationProton-decaySU(5)XSU(5) unificationSupersymmetric gutsGaugeModelsCouplingsStability62215 bytesliteraturehttp://purl.org/coar/resource_type/c_6501journal articlehttp://purl.org/coar/access_right/c_abf2application/pdffulltexthttps://repositorio.ipl.pt/bitstreams/9097dba6-7fa5-497a-8bdc-de47ac67c6ca/downloadJournal of High Energy Physics8New York |
| spellingShingle | SU(5) x SU(5) unification revisited Emmanuel-Costa, David Supersymmetric Gauge theory Gauge symmetry GUT Grand unified theories Heterotic String theory R-parity conservation Proton-decay SU(5)XSU(5) unification Supersymmetric guts Gauge Models Couplings Stability |
| status | SINGLETON |
| subject.fl_str_mv | Supersymmetric Gauge theory Gauge symmetry GUT Grand unified theories Heterotic String theory R-parity conservation Proton-decay SU(5)XSU(5) unification Supersymmetric guts Gauge Models Couplings Stability |
| title | SU(5) x SU(5) unification revisited |
| title_full | SU(5) x SU(5) unification revisited |
| title_fullStr | SU(5) x SU(5) unification revisited |
| title_full_unstemmed | SU(5) x SU(5) unification revisited |
| title_short | SU(5) x SU(5) unification revisited |
| title_sort | SU(5) x SU(5) unification revisited |
| topic | Supersymmetric Gauge theory Gauge symmetry GUT Grand unified theories Heterotic String theory R-parity conservation Proton-decay SU(5)XSU(5) unification Supersymmetric guts Gauge Models Couplings Stability |
| topic_facet | Supersymmetric Gauge theory Gauge symmetry GUT Grand unified theories Heterotic String theory R-parity conservation Proton-decay SU(5)XSU(5) unification Supersymmetric guts Gauge Models Couplings Stability |
| url | http://hdl.handle.net/10400.21/1780 |
| visible | 1 |