Excesses of muon g−2, RD(⁎), and RK(⁎) in a leptoquark model
In this study, we investigate muon g−2, RK(⁎), and RD(⁎) anomalies in a specific model with one doublet, one triplet, and one singlet scalar leptoquark (LQ). When the strict limits from the ℓ′→ℓγ, ΔB=2, Bs→μ+μ−, and B+→K+νν¯ processes are considered, it is difficult to use one scalar LQ to explain a...
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2017-11-01
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| Series: | Physics Letters B |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0370269317308080 |
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doaj-23cbb90f431e447880534484d9e0e65e2020-11-24T23:19:38ZengElsevierPhysics Letters B0370-26931873-24452017-11-01774C45646410.1016/j.physletb.2017.10.005Excesses of muon g−2, RD(⁎), and RK(⁎) in a leptoquark modelChuan-Hung Chen0Takaaki Nomura1Hiroshi Okada2Department of Physics, National Cheng-Kung University, Tainan 70101, TaiwanSchool of Physics, KIAS, Seoul 02455, Republic of KoreaPhysics Division, National Center for Theoretical Sciences, Hsinchu 300, TaiwanIn this study, we investigate muon g−2, RK(⁎), and RD(⁎) anomalies in a specific model with one doublet, one triplet, and one singlet scalar leptoquark (LQ). When the strict limits from the ℓ′→ℓγ, ΔB=2, Bs→μ+μ−, and B+→K+νν¯ processes are considered, it is difficult to use one scalar LQ to explain all of the anomalies due to the strong correlations among the constraints and observables. After ignoring the constraints and small couplings, the muon g−2 can be explained by the doublet LQ alone due to the mt enhancement, whereas the measured and unexpected smaller RK(⁎) requires the combined effects of the doublet and triplet LQs, and the RD and RD⁎ excesses depend on the singlet LQ through scalar- and tensor-type interactions.http://www.sciencedirect.com/science/article/pii/S0370269317308080 |
| collection |
DOAJ |
| language |
English |
| format |
Article |
| sources |
DOAJ |
| author |
Chuan-Hung Chen Takaaki Nomura Hiroshi Okada |
| spellingShingle |
Chuan-Hung Chen Takaaki Nomura Hiroshi Okada Excesses of muon g−2, RD(⁎), and RK(⁎) in a leptoquark model Physics Letters B |
| author_facet |
Chuan-Hung Chen Takaaki Nomura Hiroshi Okada |
| author_sort |
Chuan-Hung Chen |
| title |
Excesses of muon g−2, RD(⁎), and RK(⁎) in a leptoquark model |
| title_short |
Excesses of muon g−2, RD(⁎), and RK(⁎) in a leptoquark model |
| title_full |
Excesses of muon g−2, RD(⁎), and RK(⁎) in a leptoquark model |
| title_fullStr |
Excesses of muon g−2, RD(⁎), and RK(⁎) in a leptoquark model |
| title_full_unstemmed |
Excesses of muon g−2, RD(⁎), and RK(⁎) in a leptoquark model |
| title_sort |
excesses of muon g−2, rd(⁎), and rk(⁎) in a leptoquark model |
| publisher |
Elsevier |
| series |
Physics Letters B |
| issn |
0370-2693 1873-2445 |
| publishDate |
2017-11-01 |
| description |
In this study, we investigate muon g−2, RK(⁎), and RD(⁎) anomalies in a specific model with one doublet, one triplet, and one singlet scalar leptoquark (LQ). When the strict limits from the ℓ′→ℓγ, ΔB=2, Bs→μ+μ−, and B+→K+νν¯ processes are considered, it is difficult to use one scalar LQ to explain all of the anomalies due to the strong correlations among the constraints and observables. After ignoring the constraints and small couplings, the muon g−2 can be explained by the doublet LQ alone due to the mt enhancement, whereas the measured and unexpected smaller RK(⁎) requires the combined effects of the doublet and triplet LQs, and the RD and RD⁎ excesses depend on the singlet LQ through scalar- and tensor-type interactions. |
| url |
http://www.sciencedirect.com/science/article/pii/S0370269317308080 |
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