Abstract
We perform a general SU(3)F analysis of \( b\to c\overline{c}s(d) \) decays of members of the beauty baryon antitriplet to a member of the light baryon octet and a singlet. Under several reasonable assumptions we found \( \left|\mathcal{A}\left({\Xi}_b^0\to \Lambda S\right)/\mathcal{A}\left({\Xi}_b^0\to {\Xi}^0S\right)\right|\approx 1/\sqrt{6}\left|{V}_{cb}^{\ast }{V}_{cd}/\left({V}_{cb}^{\ast }{V}_{cs}\right)\right| \) and \( \left|\mathcal{A}\left({\Lambda}_b\to {\Sigma}^0S\right)/\mathcal{A}\left({\Lambda}_b\to \Lambda S\right)\right|\sim 0.02 \). These two relations have been recently probed by LHCb for the case of S = J/ψ. The former agrees with the measurement, while for the latter our prediction lies close to the upper bound set by LHCb.
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Dery, A., Ghosh, M., Grossman, Y. et al. SU(3)F analysis for beauty baryon decays. J. High Energ. Phys. 2020, 165 (2020). https://doi.org/10.1007/JHEP03(2020)165
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DOI: https://doi.org/10.1007/JHEP03(2020)165