${{\mathit D}_{{1}}{(2420)}^{\pm}}$ MASS

INSPIRE   PDGID:
M120M
VALUE (MeV) EVTS DOCUMENT ID TECN  COMMENT
$\bf{ 2425.3 \pm1.5}$ OUR AVERAGE  Error includes scale factor of 1.4.  See the ideogram below.
$2427.2$ $\pm1.0$ $\pm1.2$ 4207
ABLIKIM
2020P
 BES3 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit D}^{+}}{{\mathit D}^{-}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$
$2421.9$ $\pm4.7$ ${}^{+3.4}_{-1.2}$ 759 1
ABRAMOWICZ
2013
ZEUS ${{\mathit e}^{\pm}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit D}^{(*)0}}{{\mathit \pi}^{+}}{{\mathit X}}$
$2421$ $\pm2$ $\pm1$ 124
ABE
2005A
 BELL ${{\overline{\mathit B}}^{0}}$ $\rightarrow$ ${{\mathit D}^{+}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \pi}^{-}}$
$2425$ $\pm2$ $\pm2$ 146
BERGFELD
1994B
 CLE2 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit D}^{*0}}{{\mathit \pi}^{+}}$ X
$2443$ $\pm7$ $\pm5$ 190
ANJOS
1989C
 TPS ${{\mathit \gamma}}$ ${{\mathit N}}$ $\rightarrow$ ${{\mathit D}^{0}}{{\mathit \pi}^{+}}{{\mathit X}^{0}}$
1  From the fit of the ${{\mathit M}}$( ${{\mathit D}^{0}}{{\mathit \pi}^{+}}$ ) distribution. The widths of the ${{\mathit D}_{{1}}^{+}}$ and ${{\mathit D}_{{2}}^{*+}}$ are fixed to 25 MeV and 37 MeV, and A$_{{{\mathit D}_{{1}}}}$ and A$_{{{\mathit D}_{{2}}}}$ are fixed to the theoretical predictions of 3 and $-1$, respectively.

           ${{\mathit D}_{{1}}{(2420)}^{\pm}}$ MASS (MeV)
References:
ABLIKIM 2020P
PL B804 135395 Study of $e^{+}e^{-} \to D^{+} D^{-} \pi^{+} \pi^{-} $ at center-of-mass energies from 4.36 to 4.60 GeV
ABRAMOWICZ 2013
NP B866 229 Production of the Excited Charm Mesons ${{\mathit D}_{{1}}}$ and ${{\mathit D}_{{2}}^{*}}$ at HERA
ABE 2005A
PRL 94 221805 Observation of the ${{\mathit D}_{{1}}{(2420)}}$ $\rightarrow$ ${{\mathit D}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$ Decays
BERGFELD 1994B
PL B340 194 Observation of ${{\mathit D}_{{1}}{(2420)}^{+}}$ and ${{\mathit D}_{{2}}^{*}{(2460)}^{+}}$
ANJOS 1989C
PRL 62 1717 Observation of Excited Charmed Mesons