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dc.contributor.author | García-Bellido, Juan | - |
dc.contributor.author | García Figueroa, Daniel | - |
dc.contributor.author | Rubio-Peña, Javier | - |
dc.date.accessioned | 2009-10-20T09:40:16Z | - |
dc.date.available | 2009-10-20T09:40:16Z | - |
dc.date.issued | 2009-03-31 | - |
dc.identifier.citation | Physical Review - Section D - Particles and Fields 79(6): 063531.1-063531.22 (2009) | - |
dc.identifier.issn | 0556-2821 | - |
dc.identifier.uri | http://hdl.handle.net/10261/17809 | - |
dc.description.abstract | We study the details of preheating in an inflationary scenario in which the standard model Higgs, strongly nonminimally coupled to gravity, plays the role of the inflaton. We find that the Universe does not reheat immediately through perturbative decays, but rather initiates a complex process in which perturbative and nonperturbative effects are mixed. The Higgs condensate starts oscillating around the minimum of its potential, producing W and Z gauge bosons nonperturbatively, due to violation of the so-called adiabaticity condition. However, during each semioscillation, the created gauge bosons partially decay (perturbatively) into fermions. The decay of the gauge bosons prevents the development of parametric resonance, since bosons cannot accumulate significantly at the beginning. However, the energy transferred to the decay products of the bosons is not enough to reheat the Universe, so after about a hundred oscillations, the resonance effects will eventually dominate over the perturbative decays. Around the same time (or slightly earlier), backreaction from the gauge bosons into the Higgs condensate will also start to be significant. Soon afterwards, the Universe is filled with the remnant condensate of the Higgs and a nonthermal distribution of fermions and bosons (those of the standard model), which redshift as radiation and matter, respectively. We compute the distribution of the energy budget among all the species present at the time of backreaction. From there until thermalization, the evolution of the system is highly nonlinear and nonperturbative, and will require a careful study via numerical simulations. | en_US |
dc.description.sponsorship | We would like to thank Geneva University, SISSA-Trieste and MPI-Munich for hospitality during the development of parts of this research. DGF is supported by a FPU contract with Ref. AP2005-1092 and JR by an I3P contract. We also acknowledge financial support from the Madrid Regional Government (CAM) under the program HEPHACOS P-ESP-00346, and the Spanish Research Ministry (MEC) under contract FPA2006-05807. The authors participate in the Consolider-Ingenio 2010 CPAN (CSD2007-00042) and PAU (CSD2007-00060), as well as in the European Union 6th Framework Marie Curie Network “UniverseNet” under contract MRTN-CT-2006-035863. | en_US |
dc.format.extent | 466521 bytes | - |
dc.format.mimetype | application/pdf | - |
dc.language.iso | eng | en_US |
dc.publisher | American Physical Society | - |
dc.rights | openAccess | en_US |
dc.title | Preheating in the Standard Model with the Higgs-Inflaton coupled to gravity | en_US |
dc.type | artículo | en_US |
dc.identifier.doi | 10.1103/PhysRevD.79.063531 | - |
dc.description.peerreviewed | Peer reviewed | en_US |
dc.relation.publisherversion | http://dx.doi.org/10.1103/PhysRevD.79.063531 | en_US |
dc.type.coar | http://purl.org/coar/resource_type/c_6501 | es_ES |
item.openairetype | artículo | - |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.grantfulltext | open | - |
item.fulltext | With Fulltext | - |
item.languageiso639-1 | en | - |
item.cerifentitytype | Publications | - |
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