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${{\mathit \Xi}_{{cc}}^{++}}$ MASS

INSPIRE   PDGID:

S068M

VALUE (MeV) EVTS DOCUMENT ID TECN  COMMENT $3621.55$ $\pm0.23$ $\pm0.30$ 2k 1 AAIJ 2020 J LHCB ${{\mathit p}}{{\mathit p}}$ at 13 TeV • • We do not use the following data for averages, fits, limits, etc. • • $3620.6$ $\pm1.5$ $\pm0.4$ $\pm0.3$ 91 2 AAIJ 2018 BA LHCB ${{\mathit p}}{{\mathit p}}$ at 13 TeV $3621.40$ $\pm0.72$ $\pm0.27$ $\pm0.14$ 313 3 AAIJ 2017 BC LHCB ${{\mathit p}}{{\mathit p}}$ at 13 TeV 1  AAIJ 2020J combines mass measurements $3621.53$ $\pm0.24$ $\pm0.29$ MeV from ${{\mathit \Xi}_{{cc}}^{++}}$ $\rightarrow$ ${{\mathit \Lambda}_{{c}}^{+}}{{\mathit K}^{-}}{{\mathit \pi}^{+}}{{\mathit \pi}^{+}}$ and $3621.95$ $\pm0.60$ $\pm0.49$ MeV from ${{\mathit \Xi}_{{cc}}^{++}}$ $\rightarrow$ ${{\mathit \Xi}_{{c}}^{+}}{{\mathit \pi}^{+}}$ . Supersedes AAIJ 2018BA and AAIJ 2017BC. 2  The third error in AAIJ 2018BA value is from the uncertainty of the ${{\mathit \Xi}_{{c}}^{+}}$ mass. 3  The third error in AAIJ 2017BC value is from the uncertainty of the ${{\mathit \Lambda}_{{c}}^{+}}$ mass. The width of the signal is $6.6$ $\pm0.8$ MeV, consistent with the experimental resolution.

References:

AAIJ 2020J JHEP 2002 049 Precision measurement of the $\Xi_{cc}^{++}$ mass AAIJ 2018BA PRL 121 162002 First Observation of the Doubly Charmed Baryon Decay $\Xi_{cc}^{++}\rightarrow \Xi_{c}^{+}\pi^{+}$ AAIJ 2017BC PRL 119 112001 Observation of the Doubly Charmed Baryon ${{\mathit \Xi}_{{cc}}^{++}}$