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

INSPIRE   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 2020 D LHCB ${{\mathit B}^{-}}$ $\rightarrow$ ${{\mathit D}^{*+}}{{\mathit \pi}^{-}}{{\mathit \pi}^{-}}$ $2419.6$ $\pm0.1$ $\pm0.7$ 210k AAIJ 2013 CC 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.. 2010 P BABR ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit D}^{*+}}{{\mathit \pi}^{-}}{{\mathit X}}$ $2426$ $\pm3$ $\pm1$ 151 ABE 2005 A BELL ${{\mathit B}^{-}}$ $\rightarrow$ ${{\mathit D}^{0}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \pi}^{-}}$ $2421.4$ $\pm1.5$ $\pm0.9$ 3 ABE 2004 D BELL ${{\mathit B}^{-}}$ $\rightarrow$ ${{\mathit D}^{*+}}{{\mathit \pi}^{-}}{{\mathit \pi}^{-}}$ $2421$ ${}^{+1}_{-2}$ $\pm2$ 286 AVERY 1994 C CLE2 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit D}^{*+}}{{\mathit \pi}^{-}}$ X $2422$ $\pm2$ $\pm2$ 51 FRABETTI 1994 B 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 1989 H ARG ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit D}^{*+}}{{\mathit \pi}^{-}}$ X $2428$ $\pm8$ $\pm5$ 171 ANJOS 1989 C 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 2006 A CDF 1900 ${{\mathit p}}$ ${{\overline{\mathit p}}}$ $\rightarrow$ ${{\mathit D}^{*+}}{{\mathit \pi}^{-}}{{\mathit X}}$ $2425$ $\pm3$ 235 5 ABREU 1998 M 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:

AAIJ 2020D PR D101 032005 Determination of quantum numbers for several excited charmed mesons observed in $B^- \to D^{*+} \pi^- \pi^-$ decays AAIJ 2013CC JHEP 1309 145 Study of ${{\mathit D}_{{J}}}$ Meson Decays to ${{\mathit D}^{+}}{{\mathit \pi}^{-}}$, ${{\mathit D}^{0}}{{\mathit \pi}^{+}}$ and ${{\mathit D}^{*+}}{{\mathit \pi}^{-}}$ Final States in ${{\mathit p}}{{\mathit p}}$ Collisions ABRAMOWICZ 2013 NP B866 229 Production of the Excited Charm Mesons ${{\mathit D}_{{1}}}$ and ${{\mathit D}_{{2}}^{*}}$ at HERA DEL-AMO-SANCHEZ 2010P PR D82 111101 Observation of New Resonances Decaying to ${{\mathit D}}{{\mathit \pi}}$ and ${{\mathit D}^{*}}{{\mathit \pi}}$ in Inclusive ${{\mathit e}^{+}}{{\mathit e}^{-}}$ Collisions near $\sqrt {s }$ = 10.58 GeV CHEKANOV 2009 EPJ C60 25 Production of Excited Charm and Charm-Strange Mesons at HERA ABULENCIA 2006A PR D73 051104 Measurement of Mass and Width of the Excited Charmed Meson States ${{\mathit D}_{{1}}^{0}}$ and ${{\mathit D}_{{2}}^{*0}}$ at CDF ABE 2005A PRL 94 221805 Observation of the ${{\mathit D}_{{1}}{(2420)}}$ $\rightarrow$ ${{\mathit D}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$ Decays ABE 2004D PR D69 112002 Study of ${{\mathit B}^{-}}$ $\rightarrow$ ${{\mathit D}^{**0}}{{\mathit \pi}^{-}}$ ( ${{\mathit D}^{**0}}$ $\rightarrow$ ${{\mathit D}}{}^{(*)+}$ ${{\mathit \pi}^{-}}$ ) Decays ABREU 1998M PL B426 231 First Evidence for a Charm Radial Excitation, ${{\mathit D}^{*'}}$ AVERY 1994C PL B331 236 Production and Decay of ${{\mathit D}_{{1}}{(2420)}^{0}}$ and ${{\mathit D}_{{2}}^{*}{(2460)}^{0}}$ FRABETTI 1994B PRL 72 324 Measurement of the Masses and Widths of $\mathit L$ = 1 Charm Mesons AVERY 1990 PR D41 774 P-wave Charmed Mesons in ${{\mathit e}^{+}}{{\mathit e}^{-}}$ Annihilation ALBRECHT 1989H PL B232 398 Resonance Decomposition of the ${{\mathit D}^{*}{(2420)}^{0}}$ Through a Decay Angular Analysis ANJOS 1989C PRL 62 1717 Observation of Excited Charmed Mesons