BROWSE

ITEM VIEW & DOWNLOAD

Constraints on relaxion windows

Cited 5 time in webofscience Cited 33 time in scopus
1,070 Viewed 238 Downloaded
Title
Constraints on relaxion windows
Author(s)
Kiwoon Choi; Sang Hui Im
Publication Date
2016-12
Journal
JOURNAL OF HIGH ENERGY PHYSICS, v.2016, no.12, pp.093
Publisher
SPRINGER
Abstract
We examine the low energy phenomenology of the relaxion solution to the weak scale hierarchy problem. Assuming that the Hubble friction is responsible for a dissipation of the relaxion energy, we identify the cosmological relaxion window which corresponds to the parameter region compatible with a given value of the acceptable number of inflationary e-foldings. We then discuss a variety of observational constraints on the relaxion window, including those from astrophysical and cosmological considerations. We find that majority of the parameter space with a relaxion mass mϕ ≳ 100 eV or a relaxion decay constant f ≲107GeV is excluded by existing constraints. There is an interesting parameter region with mϕ ∼ 0.2 − 10 GeV and f ∼ few − 200 TeV, which is allowed by existing constraints, but can be probed soon by future beam dump experiments such as the SHiP experiment, or by improved EDM experiments. © 2016, The Author(s)
URI
https://pr.ibs.re.kr/handle/8788114/3224
DOI
10.1007/JHEP12(2016)093
ISSN
1029-8479
Appears in Collections:
Center for Fundamental Theory(순수물리이론 연구단) > 1. Journal Papers (저널논문)
Files in This Item:
Kiwoon Choi, Sang Hui Im_1610.00680v4.pdfDownload

qrcode

  • facebook

    twitter

  • Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.
해당 아이템을 이메일로 공유하기 원하시면 인증을 거치시기 바랍니다.

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

Browse