Investigating bottom-quark Yukawa interaction at Higgs factory |
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| Authors: | Qi Bi Kangyu Chai Jun Gao Yiming Liu Hao Zhang |
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| Institution: | (Institute of High Energy Physics,Chinese Academy of Sciences,Beijing 100049,China;School of Physics,University of Chinese Academy of Sciences,Beijing 100049,China;INPAC,Shanghai Key Laboratory for Particle Physics and Cosmology,School of Physics and Astronomy,Shanghai Jiao-Tong University,Shanghai 200240,China;Center for High Energy Physics,Peking University,Beijing 100871,China) |
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| Abstract: | Measuring the fermion Yukawa coupling constants is important for understanding the origin of the fermion masses and their relationship with spontaneously electroweak symmetry breaking. In contrast, some new physics(NP) models change the Lorentz structure of the Yukawa interactions between standard model(SM) fermions and the SM-like Higgs boson, even in their decoupling limit. Thus, the precise measurement of the fermion Yukawa interactions is a powerful tool of NP searching in the decoupling limit. In this work, we show the possibility of investigating the Lorentz structure of the bottom-quark Yukawa interaction with the 125 GeV SM-like Higgs boson for future e~+e~- colliders. |
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