GeV scale dark matter and $B\rightarrow K+$ missing energy phenomenology in the $U(1)_{B-L}$ model
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arXiv
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| Autori principali: | , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2024
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| _version_ | 1866916339702038528 |
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| author | Yadav, Ajay Kumar Singirala, Shivaramakrishna Mohapatra, Manas Kumar Sahoo, Suchismita |
| author_facet | Yadav, Ajay Kumar Singirala, Shivaramakrishna Mohapatra, Manas Kumar Sahoo, Suchismita |
| contents | We elucidate the recently observed discrepancy in the branching ratio of $B^{+}\rightarrow K^{+}$ +inv decay mode using a GeV scale scalar dark matter in an anomaly-free $U(1)_{B-L}$ gauge extension of the Standard Model. We constrain the new parameters by using consistency with the existing bounds on Dark matter relic density, direct detection, collider and BR($B\rightarrow K^*ν\barν$) measured at the Belle II experiment. We investigate couplings between the mediator and the SM fermions as well as the dark matter particle. We then estimate the branching ratios of $b \to s ν\bar ν$ decay processes such as $B\rightarrow (K^+,K^*)ν\barν$, $B_s\rightarrow (η,η')ν\barν$, $ B_s\rightarrow ϕν\barν$ and $B_c\rightarrow (D_s, D_s^*)ν\barν$ in a common parameter space, meeting the current experimental bounds of both sectors simultaneously. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2407_20974 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | GeV scale dark matter and $B\rightarrow K+$ missing energy phenomenology in the $U(1)_{B-L}$ model Yadav, Ajay Kumar Singirala, Shivaramakrishna Mohapatra, Manas Kumar Sahoo, Suchismita High Energy Physics - Phenomenology We elucidate the recently observed discrepancy in the branching ratio of $B^{+}\rightarrow K^{+}$ +inv decay mode using a GeV scale scalar dark matter in an anomaly-free $U(1)_{B-L}$ gauge extension of the Standard Model. We constrain the new parameters by using consistency with the existing bounds on Dark matter relic density, direct detection, collider and BR($B\rightarrow K^*ν\barν$) measured at the Belle II experiment. We investigate couplings between the mediator and the SM fermions as well as the dark matter particle. We then estimate the branching ratios of $b \to s ν\bar ν$ decay processes such as $B\rightarrow (K^+,K^*)ν\barν$, $B_s\rightarrow (η,η')ν\barν$, $ B_s\rightarrow ϕν\barν$ and $B_c\rightarrow (D_s, D_s^*)ν\barν$ in a common parameter space, meeting the current experimental bounds of both sectors simultaneously. |
| title | GeV scale dark matter and $B\rightarrow K+$ missing energy phenomenology in the $U(1)_{B-L}$ model |
| topic | High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2407.20974 |