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Coleman-Weinberg inflation in light of Planck
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| dc.contributor.author | Barenboim Szuchman, Gabriela Alejandra | |
| dc.contributor.author | Chun, Eung Jin | |
| dc.contributor.author | Lee, Hyun Min | |
| dc.date.accessioned | 2014-09-19T10:50:42Z | |
| dc.date.available | 2014-09-19T10:50:42Z | |
| dc.date.issued | 2014 | |
| dc.identifier.citation | Barenboim Szuchman, Gabriela Alejandra Chun, Eung Jin Lee, Hyun Min 2014 Coleman-Weinberg inflation in light of Planck Physics Letters B 730 81 88 | |
| dc.identifier.uri | http://hdl.handle.net/10550/38925 | |
| dc.description.abstract | We revisit a single field inflationary model based on Coleman-Weinberg potentials. We show that in small field Coleman-Weinberg inflation, the observed amplitude of perturbations needs an extremely small quartic coupling of the inflaton, which might be a signature of radiative origin. However, the spectral index obtained in a standard cosmological scenario turns out to be outside the 2 sigma region of the Planck data. When a non-standard cosmological framework is invoked, such as brane-world cosmology in the Randall-Sundrum model, the spectral index can be made consistent with Planck data within 1 sigma, courtesy of the modification in the evolution of the Hubble parameter in such a scheme. We also show that the required inflaton quartic coupling as well as a phenomenologically viable B-L symmetry breaking together with a natural electroweak symmetry breaking can arise dynamically in a generalized B-L extension of the Standard Model where the full potential is assumed to vanish at a high scale. | |
| dc.language.iso | eng | |
| dc.relation.ispartof | Physics Letters B, 2014, vol. 730, p. 81-88 | |
| dc.subject | Física | |
| dc.title | Coleman-Weinberg inflation in light of Planck | |
| dc.type | journal article | es_ES |
| dc.date.updated | 2014-09-19T10:50:42Z | |
| dc.identifier.doi | 10.1016/j.physletb.2014.01.039 | |
| dc.identifier.idgrec | 092999 | |
| dc.rights.accessRights | open access | es_ES |
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