Quelques commentaires autour des résultats de Bicep2 et du lien possible entre Higgs et inflaton

Echange réel avec Jester sur le blog Résonaances
Does it mean we have now some evidence for a second scalar field (not necesseraly fundamental) the inflaton, a big brother to the Higgs? How big (vev, mass) today (not just before Big Bang nucleosynthesis) by the way ? Could the inflaton talk to (interact with) the Higgs boson, could the big one helps the light one to cope with its quadratic divergences ... I stop here to avoid rhyme inflation with infatuation17 March 2014 20:33  
Jester said...
Yes, the hypothesis of a new scalar field to support inflation is getting more and more plausible. We don't know its properties, but the mass should not be larger than 10^16 GeV. We know nothing about its interactions with the Higgs, and we have no idea how it could help with the hierarchy problem.17 March 2014 21:18

Commentaire virtuel (proposé mais refusé) sur le blog Not Even Wrong
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A possibly relevant piece of information to know if the BICEP2 results (to be confirmed) could be useful to test simple models:
“[A Higgs inflaton scenario with the already known scalar boson mass close to the critical value for which the Standard Model is a self-consistent effective field theory up to inflationary scale] becomes a predictive theory for particle physics … It is amazing that a possible detection of large tensor-to-scalar ratio r … predicts the top quark and Higgs boson masses close to their experimental values. Another observation is that the running of the spectral index becomes relatively large and negative.”