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| Main Authors: | , , , , , |
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| Format: | Preprint |
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2018
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/1802.01769 |
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| _version_ | 1866915036673343488 |
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| author | Yang, Zhong-Jun Zhao, Shu-Min Dong, Xing-Xing Zhan, Xi-Jie Zhang, Hai-Bin Feng, Tai-Fu |
| author_facet | Yang, Zhong-Jun Zhao, Shu-Min Dong, Xing-Xing Zhan, Xi-Jie Zhang, Hai-Bin Feng, Tai-Fu |
| contents | 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 $\overline{B} \rightarrow Dτ\overlineν_τ$ ($\overline{B} \rightarrow D^{*}τ\overlineν_τ$) to that of $\overline{B} \rightarrow Dl\overlineν_{l}$ ($\overline{B} \rightarrow D^{*}l\overlineν_{l}$), 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 $R_{D}$ ($R_{D^{*}}$). |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_1802_01769 |
| institution | arXiv |
| publishDate | 2018 |
| record_format | arxiv |
| spellingShingle | Corrections to $R_{D}$ and $R_{D^{*}}$ in the BLMSSM Yang, Zhong-Jun Zhao, Shu-Min Dong, Xing-Xing Zhan, Xi-Jie Zhang, Hai-Bin Feng, Tai-Fu High Energy Physics - Phenomenology 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 $\overline{B} \rightarrow Dτ\overlineν_τ$ ($\overline{B} \rightarrow D^{*}τ\overlineν_τ$) to that of $\overline{B} \rightarrow Dl\overlineν_{l}$ ($\overline{B} \rightarrow D^{*}l\overlineν_{l}$), 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 $R_{D}$ ($R_{D^{*}}$). |
| title | Corrections to $R_{D}$ and $R_{D^{*}}$ in the BLMSSM |
| topic | High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/1802.01769 |