Flat direction inflation with running kinetic term and baryogenesis
We consider a possibility that one of the flat directions in the minimal supersymmetric standard model plays the role of the inflaton field and realizes large-field inflation. This is achieved by introducing a generalized shift symmetry on the flat direction, which enables us to control the inflaton...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2014-09-01
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| Series: | Physics Letters B |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0370269314005577 |
| _version_ | 1818546000885710848 |
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| author | Shinta Kasuya Fuminobu Takahashi |
| author_facet | Shinta Kasuya Fuminobu Takahashi |
| author_sort | Shinta Kasuya |
| collection | DOAJ |
| description | We consider a possibility that one of the flat directions in the minimal supersymmetric standard model plays the role of the inflaton field and realizes large-field inflation. This is achieved by introducing a generalized shift symmetry on the flat direction, which enables us to control the inflaton potential over large field values. After inflation, higher order terms allowed by the generalized shift symmetry automatically cause a helical motion of the field to create the baryon number of the universe, while baryonic isocurvature fluctuations are suppressed. |
| first_indexed | 2024-12-12T07:47:18Z |
| format | Article |
| id | doaj.art-fff485242ca54c87b3241f77c73286b1 |
| institution | Directory Open Access Journal |
| issn | 0370-2693 1873-2445 |
| language | English |
| last_indexed | 2024-12-12T07:47:18Z |
| publishDate | 2014-09-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Physics Letters B |
| spelling | doaj.art-fff485242ca54c87b3241f77c73286b12022-12-22T00:32:33ZengElsevierPhysics Letters B0370-26931873-24452014-09-01736C52653210.1016/j.physletb.2014.07.055Flat direction inflation with running kinetic term and baryogenesisShinta Kasuya0Fuminobu Takahashi1Department of Mathematics and Physics, Kanagawa University, Kanagawa 259-1293, JapanDepartment of Physics, Tohoku University, Sendai 980-8578, JapanWe consider a possibility that one of the flat directions in the minimal supersymmetric standard model plays the role of the inflaton field and realizes large-field inflation. This is achieved by introducing a generalized shift symmetry on the flat direction, which enables us to control the inflaton potential over large field values. After inflation, higher order terms allowed by the generalized shift symmetry automatically cause a helical motion of the field to create the baryon number of the universe, while baryonic isocurvature fluctuations are suppressed.http://www.sciencedirect.com/science/article/pii/S0370269314005577 |
| spellingShingle | Shinta Kasuya Fuminobu Takahashi Flat direction inflation with running kinetic term and baryogenesis Physics Letters B |
| title | Flat direction inflation with running kinetic term and baryogenesis |
| title_full | Flat direction inflation with running kinetic term and baryogenesis |
| title_fullStr | Flat direction inflation with running kinetic term and baryogenesis |
| title_full_unstemmed | Flat direction inflation with running kinetic term and baryogenesis |
| title_short | Flat direction inflation with running kinetic term and baryogenesis |
| title_sort | flat direction inflation with running kinetic term and baryogenesis |
| url | http://www.sciencedirect.com/science/article/pii/S0370269314005577 |
| work_keys_str_mv | AT shintakasuya flatdirectioninflationwithrunningkinetictermandbaryogenesis AT fuminobutakahashi flatdirectioninflationwithrunningkinetictermandbaryogenesis |