Amb motiu del tancament d'estiu, la validació de documents es reprendrà a partir del 28 d'agost de 2026. Disculpeu les molèsties.
Con motivo del cierre de verano, la validación de documentos se reanudará a partir del 28 de agosto de 2026. Disculpad las molestias
Due to the summer closure, document validation will resume starting August 28, 2026. We apologize for any inconvenience.

Fitxers

657241.pdf (214.32 KB)

Tipus de document

Article

Versió

Versió publicada

Data de publicació

2016-02-04

Tots els drets reservats

Si us plau utilitzeu sempre aquest identificador per citar o enllaçar aquest document: https://hdl.handle.net/2445/128248

Electroweak vacuum stability and inflation via nonminimal derivative couplings to gravity

Títol de la revista

Autors

Director/Tutor

ISSN de la revista

Títol del volum

Recurs relacionat

https://doi.org/10.1103/PhysRevD.93.045005

Resum

We show that the standard model vacuum can be stabilized if all particle propagators are nonminimally coupled to gravity. This is due to a Higgs-background dependent redefinition of the standard model fields: in terms of canonical variables and in the large Higgs field limit, the quantum fluctuations of the redefined fields are suppressed by the Higgs background. Thus, in this regime, quantum corrections to the tree-level electroweak potential are negligible. Finally, we show that in this framework the Higgs boson can be responsible for inflation. Due to a numerical coincidence that originates from the CMB data, inflation can happen if the Higgs boson mass, the top mass, and the QCD coupling lie in a region of the parameter space approximately equivalent than the one allowing for electroweak vacuum stability in the standard Model. We find some (small) regions in the standard model parameter space in which the new interaction "rescues" the electroweak vacuum, which would not be stable in the standard model.

Matèries

Cosmologia, Gravetat

Matèries (anglès)

Cosmology, Gravity

Citació

Col·leccions

Articles publicats en revistes (Institut de Ciències del Cosmos (ICCUB))

Citació

VITA, Stefano Di and GERMANI, Cristiano. Electroweak vacuum stability and inflation via nonminimal derivative couplings to gravity. Physical Review D. 2016. Vol. 93, num. 4. ISSN 2470-0010. [consulted: 19 of August of 2026]. Available at: https://hdl.handle.net/2445/128248

Exportar metadades

JSON - METS

Compartir registre