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Starobinsky-like Inflation, Supercosmology and Neutrino Masses in No-Scale Flipped SU(5)
We embed a flipped SU(5) × U(1) GUT model in a no-scale supergravity framework, and discuss its predictions for cosmic microwave background observables, which are similar to those of the Starobinsky model of inflation. Measurements of the tilt in the spectrum of scalar perturbations in the cosmic mi...
| Autores principales: | , , , , |
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| Lenguaje: | eng |
| Publicado: |
2017
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| Materias: | |
| Acceso en línea: | https://dx.doi.org/10.1088/1475-7516/2017/07/006 http://cds.cern.ch/record/2261145 |
| _version_ | 1780954042748370944 |
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| author | Ellis, John Garcia, Marcos A. G. Nagata, Natsumi Nanopoulos, Dimitri V. Olive, Keith A. |
| author_facet | Ellis, John Garcia, Marcos A. G. Nagata, Natsumi Nanopoulos, Dimitri V. Olive, Keith A. |
| author_sort | Ellis, John |
| collection | CERN |
| description | We embed a flipped SU(5) × U(1) GUT model in a no-scale supergravity framework, and discuss its predictions for cosmic microwave background observables, which are similar to those of the Starobinsky model of inflation. Measurements of the tilt in the spectrum of scalar perturbations in the cosmic microwave background, ns, constrain significantly the model parameters. We also discuss the model's predictions for neutrino masses, and pay particular attention to the behaviours of scalar fields during and after inflation, reheating and the GUT phase transition. We argue in favor of strong reheating in order to avoid excessive entropy production which could dilute the generated baryon asymmetry. |
| id | cern-2261145 |
| institution | Organización Europea para la Investigación Nuclear |
| language | eng |
| publishDate | 2017 |
| record_format | invenio |
| spelling | cern-22611452023-09-12T03:12:17Zdoi:10.1088/1475-7516/2017/07/006http://cds.cern.ch/record/2261145engEllis, JohnGarcia, Marcos A. G.Nagata, NatsumiNanopoulos, Dimitri V.Olive, Keith A.Starobinsky-like Inflation, Supercosmology and Neutrino Masses in No-Scale Flipped SU(5)hep-thParticle Physics - Theorygr-qcGeneral Relativity and Cosmologyastro-ph.COAstrophysics and Astronomyhep-phParticle Physics - PhenomenologyWe embed a flipped SU(5) × U(1) GUT model in a no-scale supergravity framework, and discuss its predictions for cosmic microwave background observables, which are similar to those of the Starobinsky model of inflation. Measurements of the tilt in the spectrum of scalar perturbations in the cosmic microwave background, ns, constrain significantly the model parameters. We also discuss the model's predictions for neutrino masses, and pay particular attention to the behaviours of scalar fields during and after inflation, reheating and the GUT phase transition. We argue in favor of strong reheating in order to avoid excessive entropy production which could dilute the generated baryon asymmetry.We embed a flipped ${\rm SU}(5) \times {\rm U}(1)$ GUT model in a no-scale supergravity framework, and discuss its predictions for cosmic microwave background observables, which are similar to those of the Starobinsky model of inflation. Measurements of the tilt in the spectrum of scalar perturbations in the cosmic microwave background, $n_s$, constrain significantly the model parameters. We also discuss the model's predictions for neutrino masses, and pay particular attention to the behaviours of scalar fields during and after inflation, reheating and the GUT phase transition. We argue in favor of strong reheating in order to avoid excessive entropy production which could dilute the generated baryon asymmetry.arXiv:1704.07331KCL-PH-TH-2017-17CERN-PH-TH-2017-071CERN-TH-2017-071UT-17-16ACT-03-17UMN-TH-3623-17FTPI-MINN-17-08MI-TH-1752oai:cds.cern.ch:22611452017-04-24 |
| spellingShingle | hep-th Particle Physics - Theory gr-qc General Relativity and Cosmology astro-ph.CO Astrophysics and Astronomy hep-ph Particle Physics - Phenomenology Ellis, John Garcia, Marcos A. G. Nagata, Natsumi Nanopoulos, Dimitri V. Olive, Keith A. Starobinsky-like Inflation, Supercosmology and Neutrino Masses in No-Scale Flipped SU(5) |
| title | Starobinsky-like Inflation, Supercosmology and Neutrino Masses in No-Scale Flipped SU(5) |
| title_full | Starobinsky-like Inflation, Supercosmology and Neutrino Masses in No-Scale Flipped SU(5) |
| title_fullStr | Starobinsky-like Inflation, Supercosmology and Neutrino Masses in No-Scale Flipped SU(5) |
| title_full_unstemmed | Starobinsky-like Inflation, Supercosmology and Neutrino Masses in No-Scale Flipped SU(5) |
| title_short | Starobinsky-like Inflation, Supercosmology and Neutrino Masses in No-Scale Flipped SU(5) |
| title_sort | starobinsky-like inflation, supercosmology and neutrino masses in no-scale flipped su(5) |
| topic | hep-th Particle Physics - Theory gr-qc General Relativity and Cosmology astro-ph.CO Astrophysics and Astronomy hep-ph Particle Physics - Phenomenology |
| url | https://dx.doi.org/10.1088/1475-7516/2017/07/006 http://cds.cern.ch/record/2261145 |
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