A domain wall description of brane inflation and observational aspects
We consider a brane cosmology scenario by taking an inflating 3D domain wall immersed in a five-dimensional Minkowski space in the presence of a stack of N parallel domain walls. They are static BPS solutions of the bosonic sector of a 5D supergravity theory. However, one can move towards each other...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2020-11-01
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| Series: | Physics Letters B |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S037026932030616X |
| _version_ | 1828761690447020032 |
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| author | R.M.P. Neves F.F. Santos F.A. Brito |
| author_facet | R.M.P. Neves F.F. Santos F.A. Brito |
| author_sort | R.M.P. Neves |
| collection | DOAJ |
| description | We consider a brane cosmology scenario by taking an inflating 3D domain wall immersed in a five-dimensional Minkowski space in the presence of a stack of N parallel domain walls. They are static BPS solutions of the bosonic sector of a 5D supergravity theory. However, one can move towards each other due to an attractive force in between driven by bulk particle collisions and resonant tunneling effect. The accelerating domain wall is a 3-brane that is assumed to be our inflating early Universe. We analyze this inflationary phase governed by the inflaton potential induced on the brane. We compute the slow-roll parameters and show that the spectral index and the tensor-to-scalar ratio are within the recent observational data. |
| first_indexed | 2024-12-11T01:32:49Z |
| format | Article |
| id | doaj.art-b9607ce58b464fd685089bd868417711 |
| institution | Directory Open Access Journal |
| issn | 0370-2693 |
| language | English |
| last_indexed | 2024-12-11T01:32:49Z |
| publishDate | 2020-11-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Physics Letters B |
| spelling | doaj.art-b9607ce58b464fd685089bd8684177112022-12-22T01:25:18ZengElsevierPhysics Letters B0370-26932020-11-01810135813A domain wall description of brane inflation and observational aspectsR.M.P. Neves0F.F. Santos1F.A. Brito2Departamento de Física, Universidade Federal da Paraíba, Caixa Postal 5008, 58051-970 João Pessoa, Paraíba, BrazilDepartamento de Física, Universidade Federal da Paraíba, Caixa Postal 5008, 58051-970 João Pessoa, Paraíba, BrazilDepartamento de Física, Universidade Federal da Paraíba, Caixa Postal 5008, 58051-970 João Pessoa, Paraíba, Brazil; Departamento de Física, Universidade Federal de Campina Grande, Caixa Postal 10071, 58429-900 Campina Grande, Paraíba, Brazil; Corresponding author at: Departamento de Física, Universidade Federal de Campina Grande, Caixa Postal 10071, 58429-900 Campina Grande, Paraíba, Brazil.We consider a brane cosmology scenario by taking an inflating 3D domain wall immersed in a five-dimensional Minkowski space in the presence of a stack of N parallel domain walls. They are static BPS solutions of the bosonic sector of a 5D supergravity theory. However, one can move towards each other due to an attractive force in between driven by bulk particle collisions and resonant tunneling effect. The accelerating domain wall is a 3-brane that is assumed to be our inflating early Universe. We analyze this inflationary phase governed by the inflaton potential induced on the brane. We compute the slow-roll parameters and show that the spectral index and the tensor-to-scalar ratio are within the recent observational data.http://www.sciencedirect.com/science/article/pii/S037026932030616X |
| spellingShingle | R.M.P. Neves F.F. Santos F.A. Brito A domain wall description of brane inflation and observational aspects Physics Letters B |
| title | A domain wall description of brane inflation and observational aspects |
| title_full | A domain wall description of brane inflation and observational aspects |
| title_fullStr | A domain wall description of brane inflation and observational aspects |
| title_full_unstemmed | A domain wall description of brane inflation and observational aspects |
| title_short | A domain wall description of brane inflation and observational aspects |
| title_sort | domain wall description of brane inflation and observational aspects |
| url | http://www.sciencedirect.com/science/article/pii/S037026932030616X |
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