ALP inflation and Big Bang on Earth

Cited 43 time in webofscience Cited 24 time in scopus
  • Hit : 225
  • Download : 77
We study a hilltop inflation model where an axion-like particle (ALP) plays the role of the inflaton. We find that, for a broad class of potentials, the decay constant and the mass at the potential minimum satisfy the relation, m(phi) similar to 10(-6) f, to explain the CMB normalization. The ALP is necessarily coupled to the standard model particles for successful reheating. The ALP with the above relation can be searched at beam dump experiments, e.g., the SHiP experiment, if the inflation scale is sufficiently low. In this case, the ALP decays through the interactions that led to the reheating of the Universe. In other words, the Big Bang may be probed at ground-based experiments.
Publisher
SPRINGER
Issue Date
2019-07
Language
English
Article Type
Article
Citation

JOURNAL OF HIGH ENERGY PHYSICS, no.7

ISSN
1029-8479
DOI
10.1007/JHEP07(2019)095
URI
http://hdl.handle.net/10203/263991
Appears in Collection
RIMS Journal Papers
Files in This Item
000476512300001.pdf(938.2 kB)Download
This item is cited by other documents in WoS
⊙ Detail Information in WoSⓡ Click to see webofscience_button
⊙ Cited 43 items in WoS Click to see citing articles in records_button

qr_code

  • mendeley

    citeulike


rss_1.0 rss_2.0 atom_1.0