Corpus ID: 236469301

Probing for New Physics with Rare Charm Baryon ($\Lambda_c$, $\Xi_c$, $\Omega_c$) Decays

@inproceedings{Golz2021ProbingFN,
  title={Probing for New Physics with Rare Charm Baryon (\$\Lambda\_c\$, \$\Xi\_c\$, \$\Omega\_c\$) Decays},
  author={Marcel Golz and Gudrun Hiller and Tom Magorsch},
  year={2021}
}
We analyze rare charm baryon decays within the standard model and beyond. We identify all null test observables in unpolarized Λc → p`+`−, ` = e, μ decays, and study the new physics sensitivities. We find that the longitudinal dilepton polarization fraction FL is sensitive to electromagnetic dipole couplings C 7 , and to the right-handed 4-fermion vector coupling C ′ 9. The forward-backward asymmetry, AFB, due to the GIM-suppression a standard model null test already, probes the left-handed… Expand

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