BOTTOM MESONS
($\mathit B$ = $\pm1$)
${{\mathit B}^{+}}$ = ${\mathit {\mathit u}}$ ${\mathit {\overline{\mathit b}}}$, ${{\mathit B}^{0}}$ = ${\mathit {\mathit d}}$ ${\mathit {\overline{\mathit b}}}$, ${{\overline{\mathit B}}^{0}}$ = ${\mathit {\overline{\mathit d}}}$ ${\mathit {\mathit b}}$, ${{\mathit B}^{-}}$ = ${\mathit {\overline{\mathit u}}}$ ${\mathit {\mathit b}}$,
similarly for ${{\mathit B}^{*}}$'s 		INSPIRE   JSON  (beta) PDGID:
M244

${{\mathit B}_{{1}}{(5721)}}$

$I(J^P)$ = $1/2(1^{+})$ I, J, P need confirmation.
Quantum numbers shown are quark-model predictions.
${{\mathit B}_{{1}}{(5721)}}$ MASS
${{\mathit B}_{{1}}{(5721)}^{+}}$ mass   $5725.9 {}^{+2.5}_{-2.7}$ MeV 
 
${\mathit m}_{{{\mathit B}_{{1}}^{+}}}–{\mathit m}_{{{\mathit B}^{*0}}}$   $401.2 {}^{+2.4}_{-2.7}$ MeV 
 
${{\mathit B}_{{1}}{(5721)}^{0}}$ mass   $5726.1 \pm1.3$ MeV (S = 1.2)
 
${\mathit m}_{{{\mathit B}_{{1}}^{0}}}–{\mathit m}_{{{\mathit B}^{+}}}$   $446.7 \pm1.3$ MeV (S = 1.2)
 
${\mathit m}_{{{\mathit B}_{{1}}^{0}}}–{\mathit m}_{{{\mathit B}^{*+}}}$   $401.4 \pm1.2$ MeV (S = 1.2)
 
${{\mathit B}_{{1}}{(5721)}}$ WIDTH
${{\mathit B}_{{1}}{(5721)}^{+}}$ width   $31 \pm6$ MeV (S = 1.1)
 
${{\mathit B}_{{1}}{(5721)}^{0}}$ width   $27.5 \pm3.4$ MeV (S = 1.1)
 
$\Gamma_{1}$ ${{\mathit B}^{*}}{{\mathit \pi}}$   seen 365
 
FOOTNOTES