#### ${\mathit m}_{{{\mathit B}_{{s}}^{0}}}–{\mathit m}_{{{\mathit B}^{}}}$

${\mathit m}_{{{\mathit B}}}$ is the average of our ${{\mathit B}}$ masses (${\mathit m}_{{{\mathit B}^{\pm}}}+{\mathit m}_{{{\mathit B}^{0}}}$)/2.
VALUE (MeV) CL% DOCUMENT ID TECN  COMMENT
 $\bf{ 87.42 \pm0.14}$ OUR FIT
 $\bf{ 87.42 \pm0.24}$ OUR AVERAGE
$87.60$ $\pm0.44$ $\pm0.09$ 1
 2015 U
LHCB ${{\mathit p}}{{\mathit p}}$ at 7, 8 TeV
$87.42$ $\pm0.30$ $\pm0.09$ 2
 2012 E
LHCB ${{\mathit p}}{{\mathit p}}$ at 7 TeV
$86.64$ $\pm0.80$ $\pm0.08$ 3
 2006
CDF ${{\mathit p}}{{\overline{\mathit p}}}$ at 1.96 TeV
• • • We use the following data for averages but not for fits. • • •
$89.7$ $\pm2.7$ $\pm1.2$
 1996 B
CDF ${{\mathit p}}{{\overline{\mathit p}}}$ at 1.8 TeV
• • We do not use the following data for averages, fits, limits, etc. • •
$80\text{ to }130$ 68
 1990
CSB2 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \Upsilon}{(5S)}}$
 1 The reported result is ${\mathit m}_{{{\mathit B}_{{s}}^{0}}}–{\mathit m}_{{{\mathit B}^{0}}}$ = $87.45$ $\pm0.44$ $\pm0.09$ MeV. We convert it to the mass difference with respect to the average of (${\mathit m}_{{{\mathit B}^{\pm}}}$ + ${\mathit m}_{{{\mathit B}^{0}}}$)/2. Uses the mode ${{\mathit B}_{{s}}^{0}}$ $\rightarrow$ ${{\mathit \psi}{(2S)}}{{\mathit K}^{-}}{{\mathit \pi}^{+}}$ .
 2 The reported result is ${\mathit m}_{{{\mathit B}_{{s}}^{0}}}–{\mathit m}_{{{\mathit B}^{+}}}$ = $87.52$ $\pm0.30$ $\pm0.12$ MeV. We convert it to the mass difference with respect to the average of (${\mathit m}_{{{\mathit B}^{\pm}}}$ + ${\mathit m}_{{{\mathit B}^{0}}}$)/2.
 3 The reported result is ${\mathit m}_{{{\mathit B}^{0}_{{s}}}}$ $−$ ${\mathit m}_{{{\mathit B}^{0}}}$ = $86.38$ $\pm0.90$ $\pm0.06$ MeV. We convert it to the mass difference with respect to the average of (${\mathit m}_{{{\mathit B}^{\pm}}}$ + ${\mathit m}_{{{\mathit B}^{0}}}$)/2.
References:
 AAIJ 2015U
PL B747 484 Observation of the Decay ${{\overline{\mathit B}}_{{s}}^{0}}$ $\rightarrow$ ${{\mathit \psi}{(2S)}}{{\mathit K}^{+}}{{\mathit \pi}^{-}}$
 AAIJ 2012E
PL B708 241 Measurement of ${\mathit {\mathit b}}$-Hadron Masses
 ACOSTA 2006
PRL 96 202001 Measurement of Bottom-Quark Hadron Masses in Exclusive ${{\mathit J / \psi}}$ Decays with the CDF Detector
 ABE 1996B
PR D53 3496 Measurement of the Mass of the ${{\mathit B}_{{s}}^{0}}$ Meson
 LEE-FRANZINI 1990
PRL 65 2947 Hyperfine Splitting of ${{\mathit B}}$ Mesons and ${{\mathit B}_{{s}}}$ Production at the ${{\mathit \Upsilon}{(5S)}}$