Fermion localization in higher curvature and scalar–tensor theories of gravity
Abstract It is well known that, in a braneworld model, the localization of fermions on a lower dimensional submanifold (say a TeV 3-brane) is governed by the gravity in the bulk, which also determines the corresponding phenomenology on the brane. Here we consider a five dimensional warped spacetime...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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SpringerOpen
2017-12-01
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| Series: | European Physical Journal C: Particles and Fields |
| Online Access: | http://link.springer.com/article/10.1140/epjc/s10052-017-5420-6 |
| _version_ | 1818218412001722368 |
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| author | Joydip Mitra Tanmoy Paul Soumitra SenGupta |
| author_facet | Joydip Mitra Tanmoy Paul Soumitra SenGupta |
| author_sort | Joydip Mitra |
| collection | DOAJ |
| description | Abstract It is well known that, in a braneworld model, the localization of fermions on a lower dimensional submanifold (say a TeV 3-brane) is governed by the gravity in the bulk, which also determines the corresponding phenomenology on the brane. Here we consider a five dimensional warped spacetime where the bulk geometry is governed by higher curvature like F(R) gravity. In such a scenario, we explore the role of higher curvature terms on the localization of bulk fermions which in turn determines the effective radion–fermion coupling on the brane. Our result reveals that, for appropriate choices of the higher curvature parameter, the profiles of the massless chiral modes of the fermions may get localized near the TeV brane, while those for massive Kaluza–Klein (KK) fermions localize towards the Planck brane. We also explore these features in the dual scalar–tensor model by appropriate transformations. The localization property turns out to be identical in the two models. This rules out the possibility of any signature of massive KK fermions in TeV scale collider experiments due to higher curvature gravity effects. |
| first_indexed | 2024-12-12T07:23:21Z |
| format | Article |
| id | doaj.art-2a657503d28f46989607a09d7af7d73c |
| institution | Directory Open Access Journal |
| issn | 1434-6044 1434-6052 |
| language | English |
| last_indexed | 2024-12-12T07:23:21Z |
| publishDate | 2017-12-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | European Physical Journal C: Particles and Fields |
| spelling | doaj.art-2a657503d28f46989607a09d7af7d73c2022-12-22T00:33:14ZengSpringerOpenEuropean Physical Journal C: Particles and Fields1434-60441434-60522017-12-01771211310.1140/epjc/s10052-017-5420-6Fermion localization in higher curvature and scalar–tensor theories of gravityJoydip Mitra0Tanmoy Paul1Soumitra SenGupta2Department of Physics, Scottish Church CollegeDepartment of Theoretical Physics, Indian Association for the Cultivation of ScienceDepartment of Theoretical Physics, Indian Association for the Cultivation of ScienceAbstract It is well known that, in a braneworld model, the localization of fermions on a lower dimensional submanifold (say a TeV 3-brane) is governed by the gravity in the bulk, which also determines the corresponding phenomenology on the brane. Here we consider a five dimensional warped spacetime where the bulk geometry is governed by higher curvature like F(R) gravity. In such a scenario, we explore the role of higher curvature terms on the localization of bulk fermions which in turn determines the effective radion–fermion coupling on the brane. Our result reveals that, for appropriate choices of the higher curvature parameter, the profiles of the massless chiral modes of the fermions may get localized near the TeV brane, while those for massive Kaluza–Klein (KK) fermions localize towards the Planck brane. We also explore these features in the dual scalar–tensor model by appropriate transformations. The localization property turns out to be identical in the two models. This rules out the possibility of any signature of massive KK fermions in TeV scale collider experiments due to higher curvature gravity effects.http://link.springer.com/article/10.1140/epjc/s10052-017-5420-6 |
| spellingShingle | Joydip Mitra Tanmoy Paul Soumitra SenGupta Fermion localization in higher curvature and scalar–tensor theories of gravity European Physical Journal C: Particles and Fields |
| title | Fermion localization in higher curvature and scalar–tensor theories of gravity |
| title_full | Fermion localization in higher curvature and scalar–tensor theories of gravity |
| title_fullStr | Fermion localization in higher curvature and scalar–tensor theories of gravity |
| title_full_unstemmed | Fermion localization in higher curvature and scalar–tensor theories of gravity |
| title_short | Fermion localization in higher curvature and scalar–tensor theories of gravity |
| title_sort | fermion localization in higher curvature and scalar tensor theories of gravity |
| url | http://link.springer.com/article/10.1140/epjc/s10052-017-5420-6 |
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