BOTTOM, CHARMED MESONS ($\boldsymbol B$ = $\boldsymbol C$ = $\pm{}$1)

${{\mathit B}_{{c}}^{+}}$ = ${\mathit {\mathit c}}$ ${\mathit {\overline{\mathit b}}}$, ${{\mathit B}_{{c}}^{-}}$ = ${\mathit {\overline{\mathit c}}}$ ${\mathit {\mathit b}}$,
similarly for ${{\mathit B}_{{c}}^{*}}$'s
See related review:
Spectroscopy of Mesons Containing Two Heavy Quarks
${{\mathit B}_{{c}}^{+}}$
$0(0^{-})$
${{\mathit B}_{{c}}{(2S)}^{\pm}}$
$0(0^{-})$
 
   Indicates established particles.