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Observed in ${{\mathit \Xi}_{{{b}}}^{0}}{{\mathit \pi}^{-}}$ channel with ${{\mathit \Xi}_{{{b}}}^{0}}$ $\rightarrow$ ${{\mathit \Xi}_{{{c}}}^{+}}{{\mathit \pi}^{-}}$ and ${{\mathit \Xi}_{{{c}}}^{+}}$ $\rightarrow$ ${{\mathit p}}{{\mathit K}^{-}}{{\mathit \pi}^{+}}$.
2AAIJ 2023AU measures $\mathit m({{\mathit \Xi}_{{{b}}}{(5955)}^{-}}$) $−$ $\mathit m({{\mathit \Xi}_{{{b}}}^{0}}$) $−$ $\mathit m({{\mathit \pi}^{-}}$) = $24.27$ $\pm0.03$ $\pm0.01~$MeV. We have adjusted the measurement to our best values of $\mathit m({{\mathit \Xi}_{{{b}}}^{0}}$) = $5791.7$ $\pm0.4$ (MeV), $\mathit m({{\mathit \pi}^{-}}$) = $139.57039$ $\pm0.00018$ (MeV). Our first error is their experiment's error and our second error is the systematic error from using our best values.
3AAIJ 2015H measures $\mathit m({{\mathit \Xi}_{{{b}}}{(5955)}^{-}}$) $−$ $\mathit m({{\mathit \Xi}_{{{b}}}^{0}}$) $−$ $\mathit m({{\mathit \pi}^{-}}$) = $24.96$ $\pm0.12$ $\pm0.06~$MeV. We have adjusted the measurement to our best values of $\mathit m({{\mathit \Xi}_{{{b}}}^{0}}$) = $5791.7$ $\pm0.4$ (MeV), $\mathit m({{\mathit \pi}^{-}}$) = $139.57039$ $\pm0.00018$ (MeV). Our first error is their experiment's error and our second error is the systematic error from using our best values.
References:
AAIJ
2023AU
PRL 131 171901
Observation of new baryons in the $\Xi_b^-\pi^+\pi^-$ and $\Xi_b^0\pi^+\pi^-$ systems
AAIJ
2015H
PRL 114 062004
Observation of Two New ${{\mathit \Xi}_{{{b}}}^{-}}$ Baryon Resonances
