Muon $$g-2$$ g - 2 anomaly and $$\mu $$ μ – $$\tau $$ τ -philic Higgs doublet with a light CP-even component
Abstract We examine the possibilities of accommodating the muon $$g-2$$ g - 2 anomaly released by Fermilab in the 2HDM with a discrete $$Z_4$$ Z 4 symmetry in which an inert Higgs doublet field ( $$H,~A,~H^\pm $$ H , A , H ± ) has the lepton flavor violation $$\mu $$ μ – $$\tau $$ τ interactions. We...
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2021
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oai:doaj.org-article:1422976ddfcd461db86f391722f1ff222021-11-21T12:09:46ZMuon $$g-2$$ g - 2 anomaly and $$\mu $$ μ – $$\tau $$ τ -philic Higgs doublet with a light CP-even component10.1140/epjc/s10052-021-09778-21434-60441434-6052https://doaj.org/article/1422976ddfcd461db86f391722f1ff222021-11-01T00:00:00Zhttps://doi.org/10.1140/epjc/s10052-021-09778-2https://doaj.org/toc/1434-6044https://doaj.org/toc/1434-6052Abstract We examine the possibilities of accommodating the muon $$g-2$$ g - 2 anomaly released by Fermilab in the 2HDM with a discrete $$Z_4$$ Z 4 symmetry in which an inert Higgs doublet field ( $$H,~A,~H^\pm $$ H , A , H ± ) has the lepton flavor violation $$\mu $$ μ – $$\tau $$ τ interactions. We assume the Yukawa matrices to be real and symmetrical and investigate the case of light H (5 GeV $$<m_H<$$ < m H < 115 GeV). After imposing relevant theoretical and experimental constraints, especially for the multi-lepton searches at the LHC, we find that the muon $$g-2$$ g - 2 anomaly can be explained within $$2\sigma $$ 2 σ confidence level in the region of 5 GeV $$<m_H<20$$ < m H < 20 GeV, 130 GeV $$< m_A~(m_{H^\pm })<$$ < m A ( m H ± ) < 610 GeV, and 0.005 $$<\rho<$$ < ρ < 0.014. Meanwhile, the $$\chi ^2_\tau $$ χ τ 2 fitting the data of lepton flavour universality in the $$\tau $$ τ decays approaches to the SM prediction.Hong-Xin WangLei WangYang ZhangSpringerOpenarticleAstrophysicsQB460-466Nuclear and particle physics. Atomic energy. RadioactivityQC770-798ENEuropean Physical Journal C: Particles and Fields, Vol 81, Iss 11, Pp 1-8 (2021) |
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DOAJ |
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DOAJ |
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Astrophysics QB460-466 Nuclear and particle physics. Atomic energy. Radioactivity QC770-798 |
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Astrophysics QB460-466 Nuclear and particle physics. Atomic energy. Radioactivity QC770-798 Hong-Xin Wang Lei Wang Yang Zhang Muon $$g-2$$ g - 2 anomaly and $$\mu $$ μ – $$\tau $$ τ -philic Higgs doublet with a light CP-even component |
| description |
Abstract We examine the possibilities of accommodating the muon $$g-2$$ g - 2 anomaly released by Fermilab in the 2HDM with a discrete $$Z_4$$ Z 4 symmetry in which an inert Higgs doublet field ( $$H,~A,~H^\pm $$ H , A , H ± ) has the lepton flavor violation $$\mu $$ μ – $$\tau $$ τ interactions. We assume the Yukawa matrices to be real and symmetrical and investigate the case of light H (5 GeV $$<m_H<$$ < m H < 115 GeV). After imposing relevant theoretical and experimental constraints, especially for the multi-lepton searches at the LHC, we find that the muon $$g-2$$ g - 2 anomaly can be explained within $$2\sigma $$ 2 σ confidence level in the region of 5 GeV $$<m_H<20$$ < m H < 20 GeV, 130 GeV $$< m_A~(m_{H^\pm })<$$ < m A ( m H ± ) < 610 GeV, and 0.005 $$<\rho<$$ < ρ < 0.014. Meanwhile, the $$\chi ^2_\tau $$ χ τ 2 fitting the data of lepton flavour universality in the $$\tau $$ τ decays approaches to the SM prediction. |
| format |
article |
| author |
Hong-Xin Wang Lei Wang Yang Zhang |
| author_facet |
Hong-Xin Wang Lei Wang Yang Zhang |
| author_sort |
Hong-Xin Wang |
| title |
Muon $$g-2$$ g - 2 anomaly and $$\mu $$ μ – $$\tau $$ τ -philic Higgs doublet with a light CP-even component |
| title_short |
Muon $$g-2$$ g - 2 anomaly and $$\mu $$ μ – $$\tau $$ τ -philic Higgs doublet with a light CP-even component |
| title_full |
Muon $$g-2$$ g - 2 anomaly and $$\mu $$ μ – $$\tau $$ τ -philic Higgs doublet with a light CP-even component |
| title_fullStr |
Muon $$g-2$$ g - 2 anomaly and $$\mu $$ μ – $$\tau $$ τ -philic Higgs doublet with a light CP-even component |
| title_full_unstemmed |
Muon $$g-2$$ g - 2 anomaly and $$\mu $$ μ – $$\tau $$ τ -philic Higgs doublet with a light CP-even component |
| title_sort |
muon $$g-2$$ g - 2 anomaly and $$\mu $$ μ – $$\tau $$ τ -philic higgs doublet with a light cp-even component |
| publisher |
SpringerOpen |
| publishDate |
2021 |
| url |
https://doaj.org/article/1422976ddfcd461db86f391722f1ff22 |
| work_keys_str_mv |
AT hongxinwang muong2g2anomalyandmumtautphilichiggsdoubletwithalightcpevencomponent AT leiwang muong2g2anomalyandmumtautphilichiggsdoubletwithalightcpevencomponent AT yangzhang muong2g2anomalyandmumtautphilichiggsdoubletwithalightcpevencomponent |
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