Corrections to RD and RD* in the BLMSSM

Zhong-Jun Yang; Shu-Min Zhao; Xing-Xing Dong; Xi-Jie Zhan; Hai-Bin Zhang; Tai-Fu Feng

doi:10.1088/1674-1137/42/11/113104

Chinese Physics C> 2018, Vol. 42> Issue(11) : 113104 DOI: 10.1088/1674-1137/42/11/113104

Corrections to R_D and R_D^* in the BLMSSM

1.
National-Local Joint Engineering Laboratory of New Energy Photoelectric Devices, Department of Physics, Hebei University, Baoding 071002, China

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Abstract：
The deviation of the measurement of R_D (R_D^*) from the Standard Model (SM) expectation is 2.3σ (3.1σ). R_D (R_D^*) is the ratio of the branching fraction of B → Dτν_τ (B → D^*τν_τ) to that of B → Dlν_l (B → D^*lν_l), where l=e or μ. This anomaly may imply the existence of new physics (NP). In this paper, we restudy this problem in the supersymmetric extension of the Standard Model with local gauged baryon and lepton numbers (BLMSSM), and give one-loop corrections to R_D (R_D^*).
- supersymmetry ,
- BLMSSM ,
- semileptonic decay

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Zhong-Jun Yang, Shu-Min Zhao, Xing-Xing Dong, Xi-Jie Zhan, Hai-Bin Zhang and Tai-Fu Feng. Corrections to R_D and R_D^* in the BLMSSM[J]. Chinese Physics C, 2018, 42(11): 113104. doi: 10.1088/1674-1137/42/11/113104

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Received: 2018-06-19
Revised: 2018-08-19

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Supported by the NNSFC (11535002, 11605037, 11705045), the Natural Science Foundation of Hebei Province (A2016201010, A2016201069), the Natural Science Fund of Hebei University (2011JQ05, 2012-242), and Hebei Key Lab of Opto-Electronic Information and Materials, the Midwest Universities Comprehensive Strength Promotion Project

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沈阳化工大学材料科学与工程学院沈阳 110142

Corrections to R_D and R_D^* in the BLMSSM

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Corrections to R_D and R_D^* in the BLMSSM

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