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Choi, Kiwoon
순수물리이론 연구단
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Precision axion physics with running axion couplings

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Title
Precision axion physics with running axion couplings
Author(s)
Kiwoon Choi; Sang Hui Im; Hee Jung Kim; Hyeonseok Seong
Publication Date
2021-08
Journal
Journal of High Energy Physics, v.2021, no.8, pp.1 - 34
Publisher
Springer Science and Business Media Deutschland GmbH
Abstract
© 2021, The Author(s).We study the renormalization group running of axion couplings while taking into account that the Standard Model can be extended to its supersymmetric extension at a certain energy scale below the axion decay constant. We then apply our results to three different classes of axion models, i.e. KSVZ-like, DFSZ-like, and string-theoretic axions, and examine if string-theoretic axions can be distinguished from others by having a different pattern of low energy couplings to the photon, nucleons and electron. We find that the low energy couplings of string-theoretic axions have a similar pattern as those of KSVZ-like axions but yet reveal a sizable difference which might be testable in future axion search experiments. We also note that the coupling of KSVZ-like QCD axions to the electron is dominated by a three-loop contribution involving the exotic heavy quark, gluons, top quark and Higgs field.
URI
https://pr.ibs.re.kr/handle/8788114/10536
DOI
10.1007/JHEP08(2021)058
ISSN
1126-6708
Appears in Collections:
Center for Fundamental Theory(순수물리이론 연구단) > 1. Journal Papers (저널논문)
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