Corrections to RD and RD* in the BLMSSM

  • The deviation of the measurement of RD (RD*) from the Standard Model (SM) expectation is 2.3σ (3.1σ). RD (RD*) is the ratio of the branching fraction of Bντ (BD*τντ) to that of BDlνl (BD*lνl), 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 RD (RD*).
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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 RD and RD* in the BLMSSM[J]. Chinese Physics C, 2018, 42(11): 113104. doi: 10.1088/1674-1137/42/11/113104
Zhong-Jun Yang, Shu-Min Zhao, Xing-Xing Dong, Xi-Jie Zhan, Hai-Bin Zhang and Tai-Fu Feng. Corrections to RD and RD* in the BLMSSM[J]. Chinese Physics C, 2018, 42(11): 113104.  doi: 10.1088/1674-1137/42/11/113104 shu
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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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Corrections to RD and RD* in the BLMSSM

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

Abstract: The deviation of the measurement of RD (RD*) from the Standard Model (SM) expectation is 2.3σ (3.1σ). RD (RD*) is the ratio of the branching fraction of Bντ (BD*τντ) to that of BDlνl (BD*lνl), 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 RD (RD*).

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