${{\mathit \Xi}_{{{c}}}{(2930)}}$ MASSES

${{\mathit \Xi}_{{{c}}}{(2930)}^{0}}$ MASS

INSPIRE   PDGID:
B156A04
VALUE (MeV) EVTS DOCUMENT ID TECN  COMMENT
$\bf{ 2938.55 \pm0.30}$ OUR AVERAGE
$2938.5$ $\pm0.9$ $\pm2.3$ 1.5k 1
AAIJ
2023X
 LHCB ${{\mathit B}^{-}}$ $\rightarrow$ ${{\mathit \Lambda}_{{{c}}}^{+}}{{\overline{\mathit \Lambda}}_{{{c}}}^{-}}{{\mathit K}^{-}}$
$2938.55$ $\pm0.21$ $\pm0.22$ 10.4k 2
AAIJ
2020X
 LHCB ${{\mathit p}}{{\mathit p}}$ at 13 TeV
• • We do not use the following data for averages, fits, limits, etc. • •
$2928.9$ $\pm3.0$ ${}^{+0.9}_{-12.0}$ 61
LI
2018A
 BELL ${{\mathit e}^{+}}{{\mathit e}^{-}}$ at ${{\mathit \Upsilon}{(4S)}}$
$2931$ $\pm3$ $\pm5$ 34
AUBERT
2008H
 BABR ${{\mathit \Upsilon}{(4S)}}$ $\rightarrow$ ${{\mathit B}}{{\overline{\mathit B}}}$
1  AAIJ 2023X studies the ${{\mathit \Lambda}_{{{c}}}^{+}}{{\mathit K}^{-}}$ system within ${{\mathit B}^{-}}$ $\rightarrow$ ${{\mathit \Lambda}_{{{c}}}^{+}}{{\overline{\mathit \Lambda}}_{{{c}}}^{-}}{{\mathit K}^{-}}$ decays.
2  AAIJ 2020X uses a prompt ${{\mathit \Lambda}_{{{c}}}^{+}}{{\mathit K}^{-}}$ sample and reports $2938.55$ $\pm0.21$ $\pm0.17$ $\pm0.14$ MeV where the last uncertainty is due to the ${{\mathit \Lambda}_{{{c}}}^{+}}$ mass. Observes that the broader resonance at 2930 MeV seen in ${{\mathit B}^{-}}$ $\rightarrow$ ${{\mathit K}^{-}}{{\mathit \Lambda}_{{{c}}}^{+}}{{\overline{\mathit \Lambda}}_{{{c}}}^{-}}$ by LI 2018A and AUBERT 2008H resolves into two narrower peaks at approximately 2939 MeV and 2923 MeV.
References