English
 
User Manual Privacy Policy Disclaimer Contact us
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT

Released

Journal Article

Light inflaton Hunter's Guide

MPS-Authors
/persons/resource/persons30304

Bezrukov,  Fedor
Division Prof. Dr. Manfred Lindner, MPI for Nuclear Physics, Max Planck Society;

Locator
There are no locators available
Fulltext (public)

fulltext.pdf
(Any fulltext), 740KB

Supplementary Material (public)
There is no public supplementary material available
Citation

Bezrukov, F., & Gorbunov, D. (2010). Light inflaton Hunter's Guide. Journal of High Energy Physics, 2010(5): 010, pp. 1-22. doi:10.1007/JHEP05(2010)010Open Access.


Cite as: http://hdl.handle.net/11858/00-001M-0000-0011-717B-0
Abstract
We study the phenomenology of a realistic version of the chaotic inflationary model, which can be fully and directly explored in particle physics experiments. The inflaton mixes with the Standard Model Higgs boson via the scalar potential, and no additional scales above the electroweak scale are present in the model. The inflaton-to-Higgs coupling is responsible for both reheating in the Early Universe and the inflaton production in particle collisions. We find the allowed range of the light inflaton mass, 270 MeV<~m_chi<~1.8 GeV, and discuss the ways to find the inflaton. The most promising are two-body kaon and B-meson decays with branching ratios of orders 10^{-9} and 10^{-6}, respectively. The inflaton is unstable with the lifetime 10^{-9}--10^{-10} s. The inflaton decays can be searched for in a beam-target experiment, where, depending on the inflaton mass, from several billions to several tenths of millions inflatons can be produced per year with modern high-intensity beams.