The fit includes ${{\mathit D}^{\pm}}$, ${{\mathit D}^{0}}$, ${{\mathit D}_{{{s}}}^{\pm}}$, ${{\mathit D}^{*\pm}}$, ${{\mathit D}^{*0}}$, ${{\mathit D}_{{{s}}}^{*\pm}}$, ${{\mathit D}_{{{1}}}{(2420)}^{0}}$, ${{\mathit D}_{{{2}}}^{*}{(2460)}^{0}}$, and ${{\mathit D}_{{{s1}}}{(2536)}^{\pm}}$ mass and mass difference measurements.

Given the recent addition of much more precise measurements, we have omitted all those masses published up through 1990. See any Review before 2015 for those earlier results.

S032M VALUE (MeV) EVTS DOCUMENT ID TECN  COMMENT $\bf{ 1864.84 \pm0.04}$ OUR FIT $\bf{ 1864.85 \pm0.04}$ OUR AVERAGE $1865.100$ $\pm0.210$ $\pm0.046$ 0.34k ANASHIN 2025 A   KEDR ${{\mathit e}^{+}}{{\mathit e}^{-}}$at ${{\mathit \psi}{(3770)}}$ $1864.845$ $\pm0.025$ $\pm0.057$ 63k 1 TOMARADZE 2014   ${{\mathit D}^{0}}$ $\rightarrow$ ${{\mathit K}^{-}}$2 ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$ $1864.75$ $\pm0.15$ $\pm0.11$ AAIJ 2013 V   LHCB ${{\mathit D}^{0}}$ $\rightarrow$ ${{\mathit K}^{+}}$2 ${{\mathit K}^{-}}{{\mathit \pi}^{+}}$ $1864.841$ $\pm0.048$ $\pm0.063$ 4.3k 2 LEES 2013 S   BABR ${{\mathit e}^{+}}{{\mathit e}^{-}}$ at ${{\mathit \Upsilon}{(4S)}}$ $1864.847$ $\pm0.150$ $\pm0.095$ 0.3k CAWLFIELD 2007   CLEO ${{\mathit D}^{0}}$ $\rightarrow$ ${{\mathit K}_S^0}$ ${{\mathit \phi}}$ • • We do not use the following data for averages, fits, limits, etc. • • $1865.100$ $\pm0.210$ $\pm0.039$ 0.25k ANASHIN 2025   KEDR Superseded by ANASHIN 2025A $1865.30$ $\pm0.33$ $\pm0.23$ 0.1k ANASHIN 2010 A   KEDR Superseded by ANASHIN 2025 1  Obtained by analyzing CLEO-c data but not authored by the CLEO Collaboration. The largest source of error in the TOMARADZE 2014 value is from the uncertainties in the ${{\mathit K}^{-}}$ and ${{\mathit K}_S^0}$ masses. The systematic error given above is the addition in quadrature of $\pm0.022 \pm0.053$ MeV, where the second error is from those mass uncertainties. 2  The largest source of error in the LEES 2013S value is from the uncertainty of the ${{\mathit K}^{+}}$ mass. The quoted systematic error is in fact $\pm0.043$ + 3 (${\mathit m}_{{{\mathit K}^{+}}}$ $−$ 493.677), in MeV.

References