BOTTOM, STRANGE MESONS
($\boldsymbol B$ = $\pm1$, $\boldsymbol S$ = $\mp{}$1)
${{\mathit B}_{{s}}^{0}}$ = ${\mathit {\mathit s}}$ ${\mathit {\overline{\mathit b}}}$, ${{\overline{\mathit B}}_{{s}}^{0}}$ = ${\mathit {\overline{\mathit s}}}$ ${\mathit {\mathit b}}$,
similarly for ${{\mathit B}_{{s}}^{*}}$'s

INSPIRE search

${{\boldsymbol X}{(5568)}^{\pm}}$ $I(J^P)$ = $?(?^{?})$

Seen as a peak in the ${{\mathit B}_{{s}}}{{\mathit \pi}^{\pm}}$ mass spectrum with a significance of more than 3$\sigma $ by ABAZOV 2016E and ABAZOV 2018A in inclusive ${{\mathit p}}{{\overline{\mathit p}}}$ collisions at 1.96$~$TeV. Not seen by AAIJ 2016AI, AABOUD 2018L, AALTONEN 2018A, and SIRUNYAN 2018J. Needs confirmation.

${{\mathit X}{(5568)}^{\pm}}$ MASS

$5566.9 \pm3.3$ MeV

${{\mathit X}{(5568)}^{\pm}}$ WIDTH

$19 {}^{+9}_{-7}$ MeV

Decay Modes

$\Gamma_{1}$

${{\mathit B}_{{s}}}{{\mathit \pi}^{\pm}}$

seen

141