pdgLive Home   >   Meson Summary Table   >   ${{\mathit \chi}_{{{b1}}}{(2P)}}$   >   ${{\mathit \gamma}}$ ENERGY IN ${{\mathit \Upsilon}{(3S)}}$ DECAY

${{\mathit \gamma}}$ ENERGY IN ${{\mathit \Upsilon}{(3S)}}$ DECAY

INSPIRE   JSON  (beta) PDGID:

M080DM

VALUE (MeV) EVTS DOCUMENT ID TECN  COMMENT $\bf{ 99.26 \pm0.22}$ OUR EVALUATION  Treating systematic errors as correlated  See the ideogram below. $\bf{ 99.53 \pm0.23}$ OUR AVERAGE  Error includes scale factor of 1.3.  See the ideogram below. $99.15$ $\pm0.07$ $\pm0.25$ ARTUSO 2005 CLEO ${{\mathit \Upsilon}{(3S)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit X}}$ $99$ $\pm1$ 169 CRAWFORD 1992 B CLE2 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \ell}^{+}}{{\mathit \ell}^{-}}{{\mathit \gamma}}{{\mathit \gamma}}$ $100.1$ $\pm0.4$ 11147 1 HEINTZ 1992 CSB2 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \gamma}}$ X $100.2$ $\pm0.5$ 223 2 HEINTZ 1992 CSB2 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \ell}^{+}}{{\mathit \ell}^{-}}{{\mathit \gamma}}{{\mathit \gamma}}$ $99.5$ $\pm0.1$ $\pm0.5$ 25759 MORRISON 1991 CLE2 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \gamma}}$ X 1  A systematic uncertainty on the energy scale of 0.9$\%$ not included. Supersedes NARAIN 1991. 2  A systematic uncertainty on the energy scale of 0.9$\%$ not included. Supersedes HEINTZ 1991.

${{\mathit \gamma}}$ energy in ${{\mathit \Upsilon}{(3S)}}$ decay (MeV)

References