(\Lambda_b\rightarrow \Lambda(\to p \pi^-) \ell^+\ell^-\) as probe of CP-violating New Physics

We investigate the possible sizes of all the CP-violating asymmetries offered by the angular distribution of rare decay \(\Lambda_b\rightarrow \Lambda(\to p \pi^-) \ell^+\ell^-\) in the Standard Model and new physics scenarios motivated by the recent \(b\to s \ell^+\ell^-\) anomalies. We work in a m...

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Veröffentlicht in:arXiv.org 2023-07
Hauptverfasser: Das, Diganta, Das, Jaydeb, Kumar, Girish, Sahoo, Niladribihari
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Sprache:eng
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Zusammenfassung:We investigate the possible sizes of all the CP-violating asymmetries offered by the angular distribution of rare decay \(\Lambda_b\rightarrow \Lambda(\to p \pi^-) \ell^+\ell^-\) in the Standard Model and new physics scenarios motivated by the recent \(b\to s \ell^+\ell^-\) anomalies. We work in a model-independent effective theory framework and discuss the sensitivity of CP asymmetries to new \({O}_{9,10}\) operators and their chirality flipped counterparts. We find that the size of many of the CP asymmetries can be at the level of a few percent in new physics scenarios consistent with current \(b\to s\ell^+\ell^-\) data at a level of \(1\sigma\). We emphasize that measurements of these CP asymmetries can be used to discriminate different new physics scenarios in \(b\to s \ell^+\ell^-\).
ISSN:2331-8422
DOI:10.48550/arxiv.2211.09065