pdgLive

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

VALUE (MeV)

DOCUMENT ID

TECN

COMMENT

$\bf{ 10579.4 \pm1.2}$

OUR AVERAGE

$10579.3$ $\pm0.4$ $\pm1.2$

BABR

${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ hadrons

$10580.0$ $\pm3.5$

CLEO

${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ hadrons

• • We do not use the following data for averages, fits, limits, etc. • •

$10577.4$ $\pm1.0$

CUSB

${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ hadrons

¹	Reanalysis of BESSON 1985 .

²	No systematic error given.

References:

PR D72 032005

Measurement of the Total Width, the Electronic Width, and the Mass of the ${{\mathit \Upsilon}{(10580)}}$ Resonance

PR D36 1289

Exclusive Decays and Masses of the ${{\mathit B}}$ Mesons

PRL 54 377

Masses, Widths and Leptonic Widths of the Higher ${{\mathit \Upsilon}}$ Resonances

Except where otherwise noted, content of the 2023 Review of Particle Physics is licensed under a Creative Commons Attribution-NonCommercial 4.0 International (CC BY-NC 4.0) license. The publication of the Review of Particle Physics is supported by US DOE, MEXT (Japan), INFN (Italy), JPS and CERN. Individual collaborators receive support for their PDG activities from their respective institutes or funding agencies. © 2023. See LBNL disclaimers.