# ${\boldsymbol m}_{{{\boldsymbol B}^{*}}}–{\boldsymbol m}_{{{\boldsymbol B}^{}}}$ INSPIRE search

VALUE (MeV) EVTS DOCUMENT ID TECN  COMMENT
$\bf{ 45.21 \pm0.21}$ OUR FIT
$\bf{ 45.42 \pm0.26}$ OUR AVERAGE
$46.2$ $\pm0.3$ $\pm0.8$ 1
 1997 M
OPAL ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit Z}}$
$45.3$ $\pm0.35$ $\pm0.87$ 4227 1
 1996 D
ALEP ${\it{}E}^{\it{}ee}_{\rm{}cm}$= $88 - 94$ GeV
$45.5$ $\pm0.3$ $\pm0.8$ 1
 1995 R
DLPH ${\it{}E}^{\it{}ee}_{\rm{}cm}$= $88 - 94$ GeV
$46.3$ $\pm1.9$ 1378 1
 1995 B
L3 ${\it{}E}^{\it{}ee}_{\rm{}cm}$= $88 - 94$ GeV
$46.4$ $\pm0.3$ $\pm0.8$ 2
 1991
CLE2 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \gamma}}$ X
$45.6$ $\pm0.8$ 2
 1991
CSB2 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \gamma}}$ X, ${{\mathit \gamma}}{{\mathit \ell}}$ X
$45.4$ $\pm1.0$ 3
 1990
CSB2 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \Upsilon}{(5S)}}$
• • • We do not use the following data for averages, fits, limits, etc. • • •
$52$ $\pm2$ $\pm4$ 1400 4
 1985
CUSB ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit e}}$ X
1  ${{\mathit u}}$, ${{\mathit d}}$, ${{\mathit s}}$ flavor averaged.
2  These papers report $\mathit E_{{{\mathit \gamma}}}$ in the ${{\mathit B}^{*}}$ center of mass. The ${\mathit m}_{{{\mathit B}^{*}}}–{\mathit m}_{{{\mathit B}}}$ is $0.2$ MeV higher. $\mathit E_{{\mathrm {cm}}}$ = $10.61 - 10.7$ GeV. Admixture of ${{\mathit B}^{0}}$ and ${{\mathit B}^{+}}$ mesons, but not ${{\mathit B}_{{s}}}$.
3  LEE-FRANZINI 1990 value is for an admixture of ${{\mathit B}^{0}}$ and ${{\mathit B}^{+}}$. They measure $46.7$ $\pm0.4$ $\pm0.2$ MeV for an admixture of ${{\mathit B}^{0}}$, ${{\mathit B}^{+}}$, and ${{\mathit B}_{{s}}}$, and use the shape of the photon line to separate the above value.
4  HAN 1985 is for $\mathit E_{{\mathrm {cm}}}$ = $10.6 - 11.2$ GeV, giving an admixture of ${{\mathit B}^{0}}$, ${{\mathit B}^{+}}$, and ${{\mathit B}_{{s}}}$.
References:
 ACKERSTAFF 1997M
ZPHY C74 413 ${{\mathit B}^{*}}$ Production in ${{\mathit Z}^{0}}$ Decays
 BUSKULIC 1996D
ZPHY C69 393 Production of Excited Beauty States in ${{\mathit Z}}$ Decays
 ABREU 1995R
ZPHY C68 353 ${{\mathit B}^{*}}$ Production in ${{\mathit Z}}$ Decays
 ACCIARRI 1995B
PL B345 589 ${{\mathit B}^{*}}$ Production in ${{\mathit Z}}$ Decays at LEP
 AKERIB 1991
PRL 67 1692 Measurement of the Inclusive ${{\mathit B}^{*}}$ Cross Section above the ${{\mathit \Upsilon}{(4S)}}$
 WU 1991
PL B273 177 Measurement of the ${{\mathit B}^{*}}$ Cross Section at $\sqrt {s }$ = 10.61 to 10.70 GeV
 LEE-FRANZINI 1990
PRL 65 2947 Hyperfine Splitting of ${{\mathit B}}$ Mesons and ${{\mathit B}_{{s}}}$ Production at the ${{\mathit \Upsilon}{(5S)}}$
 HAN 1985
PRL 55 36 Observation of ${{\mathit B}^{*}}$ Production in ${{\mathit e}^{+}}{{\mathit e}^{-}}$ Interactions above the ${{\mathit b}}$-Flavor Threshold