${{\boldsymbol D}_{{1}}{(2420)}^{0}}$ MASS INSPIRE search

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

$\bf{ 2420.8 \pm0.5}$

OUR FIT Error includes scale factor of 1.3.

$\bf{ 2420.5 \pm0.6}$

OUR AVERAGE Error includes scale factor of 1.3.

$2419.6$ $\pm0.1$ $\pm0.7$

210k

AAIJ

2013

LHCB

${{\mathit p}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit D}^{*+}}{{\mathit \pi}^{-}}{{\mathit X}}$

$2423.1$ $\pm1.5$ ${}^{+0.4}_{-1.0}$

2.7k

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

BABR

${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit D}^{*+}}{{\mathit \pi}^{-}}{{\mathit X}}$

$2426$ $\pm3$ $\pm1$

151

ABE

2005

BELL

${{\mathit B}^{-}}$ $\rightarrow$ ${{\mathit D}^{0}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \pi}^{-}}$

$2421.4$ $\pm1.5$ $\pm0.9$

ABE

2004

BELL

${{\mathit B}^{-}}$ $\rightarrow$ ${{\mathit D}^{*+}}{{\mathit \pi}^{-}}{{\mathit \pi}^{-}}$

$2421$ ${}^{+1}_{-2}$ $\pm2$

286

AVERY

1994

CLE2

${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit D}^{*+}}{{\mathit \pi}^{-}}$ X

$2422$ $\pm2$ $\pm2$

FRABETTI

1994

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

ARG

${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit D}^{*+}}{{\mathit \pi}^{-}}$ X

$2428$ $\pm8$ $\pm5$

171

ANJOS

1989

TPS

${{\mathit \gamma}}$ ${{\mathit N}}$ $\rightarrow$ ${{\mathit D}^{*+}}{{\mathit \pi}^{-}}$ X

• • • We do not use the following data for averages, fits, limits, etc. • • •

$2420.5$ $\pm2.1$ $\pm0.9$

$3110$ $\pm340$

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

CDF

1900 ${{\mathit p}}$ ${{\overline{\mathit p}}}$ $\rightarrow$ ${{\mathit D}^{*+}}{{\mathit \pi}^{-}}{{\mathit X}}$

$2425$ $\pm3$

235

⁴

ABREU

1998

DLPH

${{\mathit e}^{+}}{{\mathit e}^{-}}$

¹ 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 $-1$.

² Fit includes the contribution from ${{\mathit D}_{{1}}^{*}{(2430)}^{0}}$.

³ 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.

⁴ No systematic error given.

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

References:

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