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${\mathit m}_{{{\mathit B}_{{s}}^{*}}}–{\mathit m}_{{{\mathit B}_{{s}}}}$

INSPIRE   PDGID:

S087DM

VALUE (MeV) DOCUMENT ID TECN  COMMENT $\bf{ 48.5 {}^{+1.8}_{-1.5}}$ OUR FIT  Error includes scale factor of 2.9. $\bf{ 46.1 \pm1.5}$ OUR AVERAGE $45.7$ $\pm1.7$ $\pm0.7$ 1 AQUINES 2006 CLEO ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \Upsilon}{(5S)}}$ $47.0$ $\pm2.6$ 2 LEE-FRANZINI 1990 CSB2 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \Upsilon}{(5S)}}$ • • We do not use the following data for averages, fits, limits, etc. • • $48$ $\pm1$ $\pm3$ 3 BONVICINI 2006 CLEO Repl. by AQUINES 2006 1  Utilized the beam constrained invariant mass peak positions for ${{\mathit B}^{*}}$ and ${{\mathit B}_{{s}}^{*}}$ to extract the measurement. 2  LEE-FRANZINI 1990 measure $46.7$ $\pm0.4$ $\pm0.2$ MeV for an admixture of ${{\mathit B}^{0}}$, ${{\mathit B}^{+}}$, and ${{\mathit B}_{{s}}}$. They use the shape of the photon line to separate the above value for ${{\mathit B}_{{s}}}$. 3  Uses 14 candidates consistent with ${{\mathit B}_{{s}}}$ decays into final states with a ${{\mathit J / \psi}}$ and a ${{\mathit D}_{{s}^{(*)-}}}$.

References:

AQUINES 2006 PRL 96 152001 Measurements of the Exclusive Decays of the ${{\mathit \Upsilon}{(5S)}}$ to ${{\mathit B}}$ Meson Final States and Improved ${{\mathit B}_{{s}}^{*}}$ Mass Measurement BONVICINI 2006 PRL 96 022002 Observation of ${{\mathit B}_{{s}}}$ Production at the ${{\mathit \Upsilon}{(5S)}}$ Resonance LEE-FRANZINI 1990 PRL 65 2947 Hyperfine Splitting of ${{\mathit B}}$ Mesons and ${{\mathit B}_{{s}}}$ Production at the ${{\mathit \Upsilon}{(5S)}}$