${{\mathit D}_{{{1}}}{(2420)}^{0}}$ MASS

INSPIRE   JSON  (beta) PDGID:
M097M
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.
VALUE (MeV) EVTS DOCUMENT ID TECN  COMMENT
$\bf{ 2421.8 \pm0.8}$ OUR AVERAGE  Error includes scale factor of 2.2.  See the ideogram below.
$2424.8$ $\pm0.1$ $\pm0.7$ 79k 1
AAIJ
2020D
 LHCB ${{\mathit B}^{-}}$ $\rightarrow$ ${{\mathit D}^{*+}}{{\mathit \pi}^{-}}{{\mathit \pi}^{-}}$
$2419.6$ $\pm0.1$ $\pm0.7$ 210k
AAIJ
2013CC
 LHCB ${{\mathit p}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit D}^{*+}}{{\mathit \pi}^{-}}{{\mathit X}}$
$2423.1$ $\pm1.5$ ${}^{+0.4}_{-1.0}$ 2.7k 2
ABRAMOWICZ
2013
ZEUS ${{\mathit e}^{\pm}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit D}^{(*)+}}{{\mathit \pi}^{-}}{{\mathit X}}$
$2420.1$ $\pm0.1$ $\pm0.8$ 103k
DEL-AMO-SANCH..
2010P
 BABR ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit D}^{*+}}{{\mathit \pi}^{-}}{{\mathit X}}$
$2426$ $\pm3$ $\pm1$ 151
ABE
2005A
 BELL ${{\mathit B}^{-}}$ $\rightarrow$ ${{\mathit D}^{0}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \pi}^{-}}$
$2421.4$ $\pm1.5$ $\pm0.9$ 3
ABE
2004D
 BELL ${{\mathit B}^{-}}$ $\rightarrow$ ${{\mathit D}^{*+}}{{\mathit \pi}^{-}}{{\mathit \pi}^{-}}$
$2421$ ${}^{+1}_{-2}$ $\pm2$ 286
AVERY
1994C
 CLE2 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit D}^{*+}}{{\mathit \pi}^{-}}$ X
$2422$ $\pm2$ $\pm2$ 51
FRABETTI
1994B
 E687 ${{\mathit \gamma}}$ ${}^{}\mathrm {Be}$ $\rightarrow$ ${{\mathit D}^{*+}}{{\mathit \pi}^{-}}$ X
$2428$ $\pm3$ $\pm2$ 279
AVERY
1990
CLEO ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit D}^{*+}}{{\mathit \pi}^{-}}$ X
$2414$ $\pm2$ $\pm5$ 171
ALBRECHT
1989H
 ARG ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit D}^{*+}}{{\mathit \pi}^{-}}$ X
$2428$ $\pm8$ $\pm5$ 171
ANJOS
1989C
 TPS ${{\mathit \gamma}}$ ${{\mathit N}}$ $\rightarrow$ ${{\mathit D}^{*+}}{{\mathit \pi}^{-}}$ X
• • We do not use the following data for averages, fits, limits, etc. • •
$2420.5$ $\pm2.1$ $\pm0.9$ $3110$ $\pm340$ 4
CHEKANOV
2009
ZEUS ${{\mathit e}^{\pm}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit D}^{*+}}{{\mathit \pi}^{-}}{{\mathit X}}$
$2421.7$ $\pm0.7$ $\pm0.6$ 7.5k
ABULENCIA
2006A
 CDF 1900 ${{\mathit p}}$ ${{\overline{\mathit p}}}$ $\rightarrow$ ${{\mathit D}^{*+}}{{\mathit \pi}^{-}}{{\mathit X}}$
$2425$ $\pm3$ 235 5
ABREU
1998M
 DLPH ${{\mathit e}^{+}}{{\mathit e}^{-}}$
1  From a full four-body amplitude analysis of the ${{\mathit B}^{-}}$ $\rightarrow$ ${{\mathit D}^{*+}}{{\mathit \pi}^{-}}{{\mathit \pi}^{-}}$ decay.
2  From the combined fit of the ${{\mathit M}}({{\mathit D}^{+}}{{\mathit \pi}^{-}}$) and ${{\mathit M}}({{\mathit D}^{*+}}{{\mathit \pi}^{-}}$) distributions. and A$_{{{\mathit D}_{{{2}}}}}$ fixed to the theoretical prediction of $-1$.
3  Fit includes the contribution from ${{\mathit D}_{{{1}}}^{*}{(2430)}^{0}}$.
4  Calculated using the mass difference $\mathit m({{\mathit D}_{{{1}}}^{0}}$) $−$ $\mathit m({{\mathit D}^{*+}})_{PDG}$ reported below and $\mathit m({{\mathit D}^{*+}})_{PDG}$ = $2010.27$ $\pm0.17$ MeV. The 0.17 MeV uncertainty of the PDG mass value should be added to the experimental uncertainty of 0.9 MeV.
5  No systematic error given.

           ${{\mathit D}_{{{1}}}{(2420)}^{0}}$ mass (MeV)
References