Flavor Violations in $B$-Mesons within Non-Minimal SU(5)
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| Main Authors: | , , , , |
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| Format: | Preprint |
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2024
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| _version_ | 1866909634099412992 |
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| author | Bhattacharya, Bhubanjyoti Datta, Alakabha Faisel, Gaber Khalil, Shaaban Roy, Shibasis |
| author_facet | Bhattacharya, Bhubanjyoti Datta, Alakabha Faisel, Gaber Khalil, Shaaban Roy, Shibasis |
| contents | Recent anomalies in $B$-meson decays, such as deviations in $R_{D^{(*)}}$ and $B\to Kν{\barν}$, suggest possible lepton flavor universality violation and new exotic interactions. In this work, we explore these anomalies within a non-minimal SU(5) grand unified theory (GUT) framework, which introduces a 45-dimensional Higgs representation predicting exotic scalar particles, including the leptoquark $R_2$ and diquark $S_6$. The $R_2$ leptoquark addresses charged current anomalies in $b\to cτν$ transitions, the $S_6$ diquark contributes to nonleptonic neutral current processes, such as $B\to Kπ$, while at the loop level, the exchange of a leptoquark and diquark contributes to $B\to Kν{\barν}$ offering solutions to longstanding puzzles. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2412_16115 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Flavor Violations in $B$-Mesons within Non-Minimal SU(5) Bhattacharya, Bhubanjyoti Datta, Alakabha Faisel, Gaber Khalil, Shaaban Roy, Shibasis High Energy Physics - Phenomenology High Energy Physics - Experiment Recent anomalies in $B$-meson decays, such as deviations in $R_{D^{(*)}}$ and $B\to Kν{\barν}$, suggest possible lepton flavor universality violation and new exotic interactions. In this work, we explore these anomalies within a non-minimal SU(5) grand unified theory (GUT) framework, which introduces a 45-dimensional Higgs representation predicting exotic scalar particles, including the leptoquark $R_2$ and diquark $S_6$. The $R_2$ leptoquark addresses charged current anomalies in $b\to cτν$ transitions, the $S_6$ diquark contributes to nonleptonic neutral current processes, such as $B\to Kπ$, while at the loop level, the exchange of a leptoquark and diquark contributes to $B\to Kν{\barν}$ offering solutions to longstanding puzzles. |
| title | Flavor Violations in $B$-Mesons within Non-Minimal SU(5) |
| topic | High Energy Physics - Phenomenology High Energy Physics - Experiment |
| url | https://arxiv.org/abs/2412.16115 |