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${{\mathit \Xi}_{{c}}{(2970)}}$ MASSES

${{\mathit \Xi}_{{c}}{(2970)}^{0}}$ MASS

INSPIRE   PDGID:

B130M0

The evidence is statistically weaker for this charge state.

VALUE (MeV) EVTS DOCUMENT ID TECN  COMMENT $\bf{ 2967.1 \pm1.7}$ OUR FIT  Error includes scale factor of 6.7. $\bf{ 2965.9 \pm2.2}$ OUR AVERAGE  Error includes scale factor of 7.4. $2964.88$ $\pm0.26$ $\pm0.20$ 11.7k 1 AAIJ 2020 X LHCB ${{\mathit p}}{{\mathit p}}$ at 13 TeV $2970.8$ $\pm0.7$ $\pm0.2$ 1.4k YELTON 2016 BELL ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \Upsilon}{(4S)}}$ , ${{\mathit \Upsilon}{(5S)}}$, continuum $2972.9$ $\pm4.4$ $\pm1.6$ $67$ $\pm44$ AUBERT 2008 J BABR ${{\mathit e}^{+}}{{\mathit e}^{-}}$ $\approx{}$ 10.58 GeV $2965.7$ $\pm2.4$ ${}^{+1.1}_{-1.2}$ $57$ $\pm13$ LESIAK 2008 BELL ${{\mathit e}^{+}}{{\mathit e}^{-}}$ $\approx{}{{\mathit \Upsilon}{(4S)}}$ $2977.1$ $\pm8.8$ $\pm3.5$ $42$ $\pm24$ CHISTOV 2006 BELL ${{\mathit e}^{+}}{{\mathit e}^{-}}$ $\approx{}{{\mathit \Upsilon}{(4S)}}$ 1  AAIJ 2020X reports $2964.88$ $\pm0.26$ $\pm0.14$ $\pm0.14$ MeV where the last uncertainty is due to the ${{\mathit \Lambda}_{{c}}^{+}}$ mass. Further studies are required to establish whether the narrow resonance at 2965 MeV is a different baryon from the narrow resonance at 2970 MeV seen by YELTON 2016 .

References:

AAIJ 2020X PRL 124 222001 Observation of New $\Xi_c^0$ Baryons Decaying to $\Lambda_c^+ K^-$ YELTON 2016 PR D94 052011 Study of Excited ${{\mathit \Xi}_{{c}}}$ States Decaying into ${{\mathit \Xi}_{{c}}^{0}}$ and ${{\mathit \Xi}_{{c}}^{+}}$ Baryons AUBERT 2008J PR D77 012002 Study of Excited Charm-Strange Baryons with Evidence for New Baryons ${{\mathit \Xi}_{{c}}{(3055)}^{+}}$ and ${{\mathit \Xi}_{{c}}{(3123)}^{+}}$ LESIAK 2008 PL B665 9 Measurement of Masses of the ${{\mathit \Xi}_{{c}}{(2645)}}$ and ${{\mathit \Xi}_{{c}}{(2815)}}$ Baryons and Observation of ${{\mathit \Xi}_{{c}}{(2980)}}$ $\rightarrow$ ${{\mathit \Xi}_{{c}}{(2645)}}{{\mathit \pi}}$ CHISTOV 2006 PRL 97 162001 Observation of New States Decaying into ${{\mathit \Lambda}_{{c}}^{+}}{{\mathit K}^{-}}{{\mathit \pi}^{+}}$ and ${{\mathit \Lambda}_{{c}}^{+}}{{\mathit K}_S^0}$ ${{\mathit \pi}^{-}}$

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