${{\mathit \Delta}{(1950)}}$ BREIT-WIGNER PHOTON DECAY AMPLITUDES

${{\mathit \Delta}{(1950)}}$ $\rightarrow$ ${{\mathit N}}{{\mathit \gamma}}$ , helicity-1/2 amplitude A$_{1/2}$

INSPIRE   PDGID:
B083A1
VALUE (GeV${}^{−1/2}$) DOCUMENT ID TECN  COMMENT
$\bf{ -0.075\text{ to }-0.065\text{ }(\approx-0.070) }$ OUR ESTIMATE
$-0.0698$ $\pm0.0141$
GOLOVATCH
2019
DPWA ${{\mathit \gamma}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit p}}$
$-0.047$ $\pm0.002$ 1
HUNT
2019
DPWA Multichannel
$-0.067$ $\pm0.005$
ANISOVICH
2017
DPWA Multichannel
$-0.083$ $\pm0.004$
WORKMAN
2012A
DPWA ${{\mathit \gamma}}$ ${{\mathit N}}$ $\rightarrow$ ${{\mathit N}}{{\mathit \pi}}$
• • We do not use the following data for averages, fits, limits, etc. • •
$-0.067$ $\pm0.005$
SOKHOYAN
2015A
DPWA Multichannel
$-0.067$ $\pm0.005$
GUTZ
2014
DPWA Multichannel
$-0.071$ $\pm0.004$
ANISOVICH
2012A
DPWA Multichannel
$-0.065$ $\pm0.001$ 1
SHRESTHA
2012A
DPWA Multichannel
$-0.094$
DRECHSEL
2007
DPWA ${{\mathit \gamma}}$ ${{\mathit N}}$ $\rightarrow$ ${{\mathit \pi}}{{\mathit N}}$
1  Statistical error only.
References