Non-minimal coupling in Higgs–Yukawa model with asymptotically safe gravity
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- Material Type
- 文書・図像類
- Author/Editor
- Oda, KinyaYamada, Masatoshi
- Publication Date
- 2017-05-15
- Publication Date (W3CDTF)
- 2017-05-15
- Text Language Code
- eng
- Subject Heading
- Target Audience
- 一般
- Note (General)
- Kin-ya Oda, Masatoshi Yamada. Non-minimal coupling in Higgs-Yukawa model with asymptotically safe gravity. https://arxiv.org/abs/1510.03734.This is a pre-print of an article published in Classical and Quantum Gravity. The final authenticated version is available online at: https://doi.org/10.1088/0264-9381/33/12/125011.We study the fixed-point structure of the Higgs-Yukawa model, with its scalar being non-minimally coupled to the asymptotically safe gravity, using the functional renormalization group. We have obtained the renormalization group equations for the cosmological and Newton constants, the scalar mass squared and quartic coupling constant, and the Yukawa and non-minimal coupling constants, taking into account all the scalar, fermion, and graviton loops. We find that switching on the fermionic quantum fluctuations makes the non-minimal coupling constant irrelevant around the Gaussian-matter fixed point with asymptotically safe gravity.