https://doi.org/10.1140/epjp/s13360-024-05725-8
Regular Article
Localization of matters coupled non-minimally to gravity on scalar thick branes
Theoretical High Energy Physics Research Division, Department of Physics, Faculty of Mathematics and Natural Sciences, Institut Teknologi Bandung, Jl. Ganesha 10, 40132, Bandung, Jawa Barat, Indonesia
Received:
29
July
2024
Accepted:
7
October
2024
Published online:
14
November
2024
We are investigating the localization of matter that interacts non-minimally with gravity within thick braneworld models generated by a scalar bulk. We focus on two models of scalar thick branes. The natural mechanism is used to analyze the localization of the fields. Without losing the point of field localization, we examine matter field localizations by considering the asymptotic behavior of the warp function on z toward infinity. The massless mode of the non-minimally coupled scalar field is localized on the brane in both models. A non-minimally coupled vector field behaves similarly to the non-minimally coupled scalar field, the massless mode in both models is localized. For a non-minimally coupled spinor field, in model 1, the field is not localized for both massless and massive modes, while in model 2, the massless spinor field is localized. This represents an improvement, as in the case of minimal coupling, massless vector and spinor fields are not localized in the brane model 2.
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© The Author(s), under exclusive licence to Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature 2024. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
