${{\mathit \Upsilon}{(4S)}}$ MASS

INSPIRE   JSON  (beta) PDGID:
M047M
VALUE (MeV) DOCUMENT ID TECN  COMMENT
$\bf{ 10579.4 \pm1.2}$ OUR AVERAGE
$10579.3$ $\pm0.4$ $\pm1.2$
AUBERT
2005Q
 BABR ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ hadrons
$10580.0$ $\pm3.5$ 1
BEBEK
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
LOVELOCK
1985
CUSB ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ hadrons
1  Reanalysis of BESSON 1985.
2  No systematic error given.
References