An economical model for $B$-flavour and $a_μ$ anomalies from SO(10) grand unification
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| Auteurs principaux: | , , , |
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| Format: | Preprint |
| Publié: |
2022
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| _version_ | 1866916412879011840 |
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| author | Aydemir, Ufuk Mandal, Tanumoy Mitra, Subhadip Munir, Shoaib |
| author_facet | Aydemir, Ufuk Mandal, Tanumoy Mitra, Subhadip Munir, Shoaib |
| contents | We investigate an $\mathrm{SO}(10)$ grand unification scenario where the complex 10-dimensional scalar multiplet, containing the Standard Model (SM) Higgs boson, resides at the TeV scale altogether. The resulting low-energy model is a 2-Higgs-doublet model augmented with two $S_1$-type leptoquarks. The gauge-coupling unification is achieved with only one intermediate scale at which the Pati-Salam gauge group is broken down to the SM. Proton stability is ensured by a discrete symmetry, leftover from the breaking of the U(1)$_{\mathrm{PQ}}$ global symmetry. The axion corresponding to this broken U(1)$_{\mathrm{PQ}}$ provides a solution to the strong CP problem, and also serves as an important dark matter candidate. We discuss how the simultaneous explanation for the $R_{D^{(*)}}$ and $a_μ$ anomalies comes about in the model, and investigate some of its phenomenological implications. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2209_04705 |
| institution | arXiv |
| publishDate | 2022 |
| record_format | arxiv |
| spellingShingle | An economical model for $B$-flavour and $a_μ$ anomalies from SO(10) grand unification Aydemir, Ufuk Mandal, Tanumoy Mitra, Subhadip Munir, Shoaib High Energy Physics - Phenomenology We investigate an $\mathrm{SO}(10)$ grand unification scenario where the complex 10-dimensional scalar multiplet, containing the Standard Model (SM) Higgs boson, resides at the TeV scale altogether. The resulting low-energy model is a 2-Higgs-doublet model augmented with two $S_1$-type leptoquarks. The gauge-coupling unification is achieved with only one intermediate scale at which the Pati-Salam gauge group is broken down to the SM. Proton stability is ensured by a discrete symmetry, leftover from the breaking of the U(1)$_{\mathrm{PQ}}$ global symmetry. The axion corresponding to this broken U(1)$_{\mathrm{PQ}}$ provides a solution to the strong CP problem, and also serves as an important dark matter candidate. We discuss how the simultaneous explanation for the $R_{D^{(*)}}$ and $a_μ$ anomalies comes about in the model, and investigate some of its phenomenological implications. |
| title | An economical model for $B$-flavour and $a_μ$ anomalies from SO(10) grand unification |
| topic | High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2209.04705 |