General formula for the running of local fNL

We compute the scale dependence of fNL for models of multi-field inflation, allowing for an arbitrary field space metric. We show that, in addition to multi-field effects and self interactions, the curved field space metric provides another source of scale dependence, which arises from the field-spa...

Descripción completa

Detalles Bibliográficos
Autores principales: Byrnes, Christian T., Gong, Jinn-Ouk
Lenguaje:eng
Publicado: 2012
Materias:
Astrophysics and Astronomy
Acceso en línea:https://dx.doi.org/10.1016/j.physletb.2012.11.052
http://cds.cern.ch/record/1483768
_version_ 1780926038907289600
author Byrnes, Christian T.
Gong, Jinn-Ouk
author_facet Byrnes, Christian T.
Gong, Jinn-Ouk
author_sort Byrnes, Christian T.
collection CERN
description We compute the scale dependence of fNL for models of multi-field inflation, allowing for an arbitrary field space metric. We show that, in addition to multi-field effects and self interactions, the curved field space metric provides another source of scale dependence, which arises from the field-space Riemann curvature tensor and its derivatives. The scale dependence may be detectable within the near future if the amplitude of fNL is not too far from the current observational bounds.
id cern-1483768
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2012
record_format invenio
spelling cern-14837682023-03-14T18:30:01Zdoi:10.1016/j.physletb.2012.11.052http://cds.cern.ch/record/1483768engByrnes, Christian T.Gong, Jinn-OukGeneral formula for the running of local fNLAstrophysics and AstronomyWe compute the scale dependence of fNL for models of multi-field inflation, allowing for an arbitrary field space metric. We show that, in addition to multi-field effects and self interactions, the curved field space metric provides another source of scale dependence, which arises from the field-space Riemann curvature tensor and its derivatives. The scale dependence may be detectable within the near future if the amplitude of fNL is not too far from the current observational bounds.We compute the scale dependence of fNL for models of multi-field inflation, allowing for an arbitrary field space metric. We show that, in addition to multi-field effects and self-interactions, the curved field space metric provides another source of scale dependence, which arises from the field-space Riemann curvature tensor and its derivatives. The scale dependence may be detectable within the near future if the amplitude of fNL is not too far from the current observational bounds.We compute the scale dependence of fNL for models of multi-field inflation, allowing for an arbitrary field space metric. We show that, in addition to multi-field effects and self interactions, the curved field space metric provides another source of scale dependence, which arises from the field-space Riemann curvature tensor and its derivatives. The scale dependence may be detectable within the near future if the amplitude of fNL is not too far from the current observational bounds.arXiv:1210.1851CERN-PH-TH-2012-249CERN-PH-TH-2012-249oai:cds.cern.ch:14837682012-10-09
spellingShingle Astrophysics and Astronomy
Byrnes, Christian T.
Gong, Jinn-Ouk
General formula for the running of local fNL
title General formula for the running of local fNL
title_full General formula for the running of local fNL
title_fullStr General formula for the running of local fNL
title_full_unstemmed General formula for the running of local fNL
title_short General formula for the running of local fNL
title_sort general formula for the running of local fnl
topic Astrophysics and Astronomy
url https://dx.doi.org/10.1016/j.physletb.2012.11.052
http://cds.cern.ch/record/1483768
work_keys_str_mv AT byrneschristiant generalformulafortherunningoflocalfnl
AT gongjinnouk generalformulafortherunningoflocalfnl

Ejemplares similares