#### ${{\boldsymbol \Upsilon}{(4S)}}$ MASS

VALUE (MeV) DOCUMENT ID TECN  COMMENT
 $\bf{ 10579.4 \pm1.2}$ OUR AVERAGE
$10579.3$ $\pm0.4$ $\pm1.2$
 2005 Q
BABR ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ hadrons
$10580.0$ $\pm3.5$ 1
 1987
CLEO ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ hadrons
• • We do not use the following data for averages, fits, limits, etc. • •
$10577.4$ $\pm1.0$ 2
 1985
CUSB ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ hadrons
 1 Reanalysis of BESSON 1985 .
 2 No systematic error given.
References:
 AUBERT 2005Q
PR D72 032005 Measurement of the Total Width, the Electronic Width, and the Mass of the ${{\mathit \Upsilon}{(10580)}}$ Resonance
 BEBEK 1987
PR D36 1289 Exclusive Decays and Masses of the ${{\mathit B}}$ Mesons
 LOVELOCK 1985
PRL 54 377 Masses, Widths and Leptonic Widths of the Higher ${{\mathit \Upsilon}}$ Resonances