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

INSPIRE   PDGID:
M232M
VALUE (MeV) EVTS DOCUMENT ID TECN  COMMENT
$5566.9$ ${}^{+3.2}_{-3.1}$ ${}^{+0.6}_{-1.2}$ 278 1
ABAZOV
2018A
 D0 ${{\mathit p}}$ ${{\overline{\mathit p}}}$ $\rightarrow$ ${{\mathit B}_{{s}}^{0}}{{\mathit \pi}^{\pm}}{{\mathit X}}$
• • We do not use the following data for averages, fits, limits, etc. • •
$5567.8$ $\pm2.9$ ${}^{+0.9}_{-1.9}$ 133 2
ABAZOV
2016E
 D0 ${{\mathit p}}$ ${{\overline{\mathit p}}}$ $\rightarrow$ ${{\mathit B}_{{s}}^{0}}{{\mathit \pi}^{\pm}}{{\mathit X}}$
1  From the combined analysis of ${{\mathit B}_{{s}}^{0}}$ $\rightarrow$ ${{\mathit J / \psi}}{{\mathit \phi}}$ and ${{\mathit B}_{{s}}^{0}}$ $\rightarrow$ ${{\mathit D}_{{s}}^{\pm}}{{\mathit \mu}^{\mp}}{{\mathit X}}$ decays.
2  Assumes ${{\mathit X}{(5568)}^{\pm}}$ $\rightarrow$ ${{\mathit B}_{{s}}}{{\mathit \pi}^{\pm}}$ decay. If ${{\mathit X}{(5568)}^{\pm}}$ $\rightarrow$ ${{\mathit B}_{{s}}^{*}}{{\mathit \pi}^{\pm}}$ decay is assumed, the mass shifts upward by 49 MeV.
References:
ABAZOV 2018A
PR D97 092004 Study of the ${X^\pm(5568)}$ state with semileptonic decays of the ${B_s^0}$ meson
ABAZOV 2016E
PRL 117 022003 Evidence for a ${{\mathit B}_{{s}}^{0}}{{\mathit \pi}^{\pm}}$ State