Cosmological perturbations in the new Higgs inflation

Germani, C; Kehagias, A

dc.contributor.author	Germani, C	en
dc.contributor.author	Kehagias, A	en
dc.date.accessioned	2014-03-01T01:33:05Z
dc.date.available	2014-03-01T01:33:05Z
dc.date.issued	2010	en
dc.identifier.issn	1475-7516	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/20310
dc.subject	Cosmological perturbation theory	en
dc.subject	Inflation	en
dc.subject	Modified gravity	en
dc.subject	Physics of the early universe	en
dc.subject.classification	Astronomy & Astrophysics	en
dc.subject.classification	Physics, Particles & Fields	en
dc.subject.other	STANDARD MODEL	en
dc.subject.other	SCALE	en
dc.subject.other	BOSON	en
dc.title	Cosmological perturbations in the new Higgs inflation	en
heal.type	journalArticle	en
heal.identifier.primary	10.1088/1475-7516/2010/05/019	en
heal.identifier.secondary	http://dx.doi.org/10.1088/1475-7516/2010/05/019	en
heal.identifier.secondary	019	en
heal.language	English	en
heal.publicationDate	2010	en
heal.abstract	We study the cosmological perturbations created during the New Higgs inflationary phase. In the New Higgs Inflation, the Higgs boson is kinetically coupled to the Einstein tensor and only three perturbative degrees of freedom, a scalar and two tensorial (gravitational waves), propagate during Inflation. Scalar perturbations are found to match the latest WMAP-7yrs data within Standard Model Higgs parameters. Primordial gravitational waves also, although propagating with superluminal speed, are consistent with present data. Finally, we estimate the values of the parameter of the New Higgs Inflation in relation to the Higgs mass, the spectral index and amplitude of the primordial scalar perturbations showing that the unitarity bound of the theory is not violated. © 2010 IOP Publishing Ltd and SISSA.	en
heal.publisher	IOP PUBLISHING LTD	en
heal.journalName	Journal of Cosmology and Astroparticle Physics	en
dc.identifier.doi	10.1088/1475-7516/2010/05/019	en
dc.identifier.isi	ISI:000279490800021	en
dc.identifier.volume	2010	en
dc.identifier.issue	5	en