${\mathit m}_{{{\mathit D}_{{1}}{(2420)}^{\pm}}}–{\mathit m}_{{{\mathit D}_{{1}}{(2420)}^{0}}}$

INSPIRE  
VALUE (MeV) DOCUMENT ID TECN  COMMENT
$4$ ${}^{+2}_{-3}$ $\pm3$
BERGFELD
1994B
CLE2 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ hadrons
References:
BERGFELD 1994B
PL B340 194 Observation of ${{\mathit D}_{{1}}{(2420)}^{+}}$ and ${{\mathit D}_{{2}}^{*}{(2460)}^{+}}$