An interacting scalar field with largish Coupling to curvature can support a distinctive inflationary universe scenario. Previously this has been discussed for the Standard Model Higgs field, treated classically or in a leading log approximation. Here we investigate the quantum theory using renormalization group methods. In this model the running of both the effective Planck mass and the couplings is important. The cosmological predictions are consistent with existing WMAP5 data, with 0.967 less than or similar to n(s) less than or similar to 0.98 (for N(e) = 60) and negligible gravity waves. We find a relationship between the spectral index and the Higgs mass that is sharply varying for m(h) similar to 120-135 GeV (depending on the top mass); in the future, that relationship could be tested against data from PLANCK and LHC. We also comment briefly on how similar dynamics might arise in more general settings, and discuss our assumptions from the effective field theory point of view. (C) 2009 Elsevier B.V. All rights reserved.

Running inflation in the Standard Model

De Simone, Andrea;
2009-01-01

Abstract

An interacting scalar field with largish Coupling to curvature can support a distinctive inflationary universe scenario. Previously this has been discussed for the Standard Model Higgs field, treated classically or in a leading log approximation. Here we investigate the quantum theory using renormalization group methods. In this model the running of both the effective Planck mass and the couplings is important. The cosmological predictions are consistent with existing WMAP5 data, with 0.967 less than or similar to n(s) less than or similar to 0.98 (for N(e) = 60) and negligible gravity waves. We find a relationship between the spectral index and the Higgs mass that is sharply varying for m(h) similar to 120-135 GeV (depending on the top mass); in the future, that relationship could be tested against data from PLANCK and LHC. We also comment briefly on how similar dynamics might arise in more general settings, and discuss our assumptions from the effective field theory point of view. (C) 2009 Elsevier B.V. All rights reserved.
2009
678
1
1
8
De Simone, Andrea; Hertzberg, Mr; Wilczek, F.
File in questo prodotto:
File Dimensione Formato  
HiggsInflation.pdf

non disponibili

Licenza: Non specificato
Dimensione 423.9 kB
Formato Adobe PDF
423.9 kB Adobe PDF   Visualizza/Apri   Richiedi una copia

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/20.500.11767/16475
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 342
  • ???jsp.display-item.citation.isi??? 330
social impact