Table 1.

Results on the masses, mass differences, and natural widths of the ${\mathrm{B}}_{\mathrm{s}1,2}^{(\ast )}$ mesons from previous measurements. The mass differences are defined as $\Delta M_{{\mathrm{B}}_{\mathrm{s}1}}^{\pm }\equiv M({\mathrm{B}}_{\mathrm{s}1})-M_{{\mathrm{B}}^{\ast +}}^{\mathrm{PDG}}-M_{{\mathrm{K}}^{-}}^{\mathrm{PDG}}$ and $\Delta M_{{\mathrm{B}}_{\mathrm{s}2}^{\ast }}^{\pm }\equiv M({\mathrm{B}}_{\mathrm{s}2}^{\ast })-M_{{\mathrm{B}}^{+}}^{\mathrm{PDG}}-M_{{\mathrm{K}}^{-}}^{\mathrm{PDG}}$, where the PDG superscript refers to the world-average mass values at the time of each publication

	CDF [3]	D0 [4]	LHCb [5]	CDF [6]
$M({\mathrm{B}}_{\mathrm{s}2}^{\ast })[\text{MeV}]$	$5839.6\pm 0.7$	$5839.6\pm 1.3$	$5839.99\pm 0.21$	$5839.7\pm 0.2$
$M({\mathrm{B}}_{\mathrm{s}1})[\text{MeV}]$	$5829.4\pm 0.7$	−	$5828.40\pm 0.41$	$5828.3\pm 0.5$
$\Delta M_{{\mathrm{B}}_{\mathrm{s}1}}^{\pm }[\text{MeV}]$	$10.73\pm 0.25$	$11.5\pm 1.4$	$10.46\pm 0.06$	$10.35\pm 0.19$
$\Delta M_{{\mathrm{B}}_{\mathrm{s}2}^{\ast }}^{\pm }[\text{MeV}]$	$66.96\pm 0.41$	$66.7\pm 1.1$	$67.06\pm 0.12$	$66.73\pm 0.19$
$\Gamma ({\mathrm{B}}_{\mathrm{s}2}^{\ast })[\text{MeV}]$	–	–	$1.56\pm 0.49$	$1.4\pm 0.4$
$\Gamma ({\mathrm{B}}_{\mathrm{s}1})[\text{MeV}]$	–	–	–	$0.5\pm 0.4$