Hunting New Animalcula with Rare K and B Decays
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| Format: | Preprint |
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2024
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| _version_ | 1866916554742956032 |
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| author | Buras, Andrzej J. |
| author_facet | Buras, Andrzej J. |
| contents | We summarize the recent strategy for an efficient hunting of new animalcula with the help of rare K and B decays that avoids the use of the $V_{cb}$ and $V_{ub}$ parameters that are subject to tensions between their determinations from inclusive and exclusive decays. In particular we update the values of the $V_{cb}$-independent ratios of various K and B decay branching ratios predicted by the Standard Model. We also stress the usefulness of the $V_{cb}-γ$ plots in the search for new physics. We select the magnificant seven among rare K and B decays that should play a leading role in the search for new physics due to their theoretical cleanness: $B^+\to K^+(K^*)ν\barν$ and $K^+\toπ^+ν\barν$ measured recently by Belle II and NA62, respectively, $K_L\toπ^0ν\barν$ investigated by KOTO and also $B_{s,d}\toμ^+μ^-$ and $K_S\toμ^+μ^-$ measured by the LHCb, CMS and ATLAS experiments at CERN. % |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2411_03440 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Hunting New Animalcula with Rare K and B Decays Buras, Andrzej J. High Energy Physics - Phenomenology High Energy Physics - Experiment High Energy Physics - Lattice We summarize the recent strategy for an efficient hunting of new animalcula with the help of rare K and B decays that avoids the use of the $V_{cb}$ and $V_{ub}$ parameters that are subject to tensions between their determinations from inclusive and exclusive decays. In particular we update the values of the $V_{cb}$-independent ratios of various K and B decay branching ratios predicted by the Standard Model. We also stress the usefulness of the $V_{cb}-γ$ plots in the search for new physics. We select the magnificant seven among rare K and B decays that should play a leading role in the search for new physics due to their theoretical cleanness: $B^+\to K^+(K^*)ν\barν$ and $K^+\toπ^+ν\barν$ measured recently by Belle II and NA62, respectively, $K_L\toπ^0ν\barν$ investigated by KOTO and also $B_{s,d}\toμ^+μ^-$ and $K_S\toμ^+μ^-$ measured by the LHCb, CMS and ATLAS experiments at CERN. % |
| title | Hunting New Animalcula with Rare K and B Decays |
| topic | High Energy Physics - Phenomenology High Energy Physics - Experiment High Energy Physics - Lattice |
| url | https://arxiv.org/abs/2411.03440 |