${{\mathit \eta}_{{{c}}}{(2S)}}$ WIDTH

INSPIRE   PDGID:
M059W
VALUE (MeV) CL% EVTS DOCUMENT ID TECN  COMMENT
$\bf{ 11.8 \pm1.6}$ OUR AVERAGE
$10.77$ $\pm1.62$ $\pm1.08$ 3.7k
AAIJ
2023AH
LHCB ${{\mathit B}^{+}}$ $\rightarrow$ ${{\mathit K}^{+}}$( ${{\mathit K}_S^0}$ ${{\mathit K}}{{\mathit \pi}}$)
$19.8$ $\pm3.9$ $\pm3.1$ 569
ABLIKIM
2022Q
BES3 ${{\mathit \psi}{(2S)}}$ $\rightarrow$ ${{\mathit \gamma}}$3( ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$)
$9.9$ $\pm4.8$ $\pm2.9$ 57
ABLIKIM
2013K
BES3 ${{\mathit \psi}{(2S)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit K}_S^0}$ ${{\mathit K}^{\pm}}{{\mathit \pi}^{\mp}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$
$16.9$ $\pm6.4$ $\pm4.8$ 127 1
ABLIKIM
2012G
BES3 ${{\mathit \psi}{(2S)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit K}^{0}}{{\mathit K}}{{\mathit \pi}}$ , ${{\mathit K}}{{\mathit K}}{{\mathit \pi}^{0}}$
$13.4$ $\pm4.6$ $\pm3.2$ 624 2
DEL-AMO-SANCH..
2011M
BABR ${{\mathit \gamma}}$ ${{\mathit \gamma}}$ $\rightarrow$ ${{\mathit K}_S^0}$ ${{\mathit K}^{\pm}}{{\mathit \pi}^{\mp}}$
$6.6$ ${}^{+8.4}_{-5.1}$ ${}^{+2.6}_{-0.9}$ 128 3
VINOKUROVA
2011
BELL ${{\mathit B}^{\pm}}$ $\rightarrow$ ${{\mathit K}^{\pm}}({{\mathit K}_S^0}$ ${{\mathit K}^{\pm}}{{\mathit \pi}^{\mp}}$)
$6.3$ $\pm12.4$ $\pm4.0$ 61
ASNER
2004
CLEO ${{\mathit \gamma}}$ ${{\mathit \gamma}}$ $\rightarrow$ ${{\mathit \eta}_{{{c}}}^{\,'}}$ $\rightarrow$ ${{\mathit K}_S^0}$ ${{\mathit K}^{\pm}}{{\mathit \pi}^{\mp}}$
• • We do not use the following data for averages, fits, limits, etc. • •
$\text{< 23}$ 90 98 4
AUBERT
2006E
BABR ${{\mathit B}^{\pm}}$ $\rightarrow$ ${{\mathit K}^{\pm}}{{\mathit X}}_{{{\mathit c}} {{\overline{\mathit c}}}}$
$22$ $\pm14$ 121
AUBERT
2005C
BABR ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit J / \psi}}{{\mathit c}}{{\overline{\mathit c}}}$
$17.0$ $\pm8.3$ $\pm2.5$ 112 5
AUBERT
2004D
BABR ${{\mathit \gamma}}$ ${{\mathit \gamma}}$ $\rightarrow$ ${{\mathit \eta}_{{{c}}}{(2S)}}$ $\rightarrow$ ${{\mathit K}}{{\overline{\mathit K}}}{{\mathit \pi}}$
$\text{<55}$ 90 39 6
CHOI
2002
BELL ${{\mathit B}}$ $\rightarrow$ ${{\mathit K}}{{\mathit K}_{{{S}}}}{{\mathit K}^{-}}{{\mathit \pi}^{+}}$
$\text{<8.0}$ 95 7
EDWARDS
1982C
CBAL ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \gamma}}$ X
1  From a simultaneous fit to ${{\mathit K}_S^0}$ ${{\mathit K}^{\pm}}{{\mathit \pi}^{\mp}}$ and ${{\mathit K}^{+}}{{\mathit K}^{-}}{{\mathit \pi}^{0}}$ decay modes.
2  Ignoring possible interference with continuum.
3  Accounts for interference with non-resonant continuum.
4  From the fit of the kaon momentum spectrum. Systematic errors not evaluated.
5  Superseded by DEL-AMO-SANCHEZ 2011M.
6  For a mass value of $3654$ $\pm6$ MeV. Superseded by VINOKUROVA 2011.
7  For a mass value of $3594$ $\pm5$ MeV
References