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pdgLive Home > Meson Summary Table > ${{\mathit \Upsilon}{(1S)}}$ > ${{\mathit \Upsilon}{(1S)}}$ WIDTH

2019 Review of Particle Physics.
M. Tanabashi et al. (Particle Data Group), Phys. Rev. D 98, 030001 (2018) and 2019 update.

${{\boldsymbol \Upsilon}{(1S)}}$ WIDTH INSPIRE search

VALUE (keV)
$\bf{ 54.02 \pm1.25}$	OUR EVALUATION See the Note on ``Width Determinations of the ${{\mathit \Upsilon}}$ States''