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${{\mathit N}{(1650)}}$ BREIT-WIGNER PHOTON DECAY AMPLITUDES

${{\mathit N}{(1650)}}$ $\rightarrow$ ${{\mathit n}}{{\mathit \gamma}}$ , helicity-1/2 amplitude A$_{1/2}$

VALUE (GeV${}^{−1/2}$)

DOCUMENT ID

TECN

COMMENT

$\bf{ -0.040\text{ to }0.030\text{ }(\approx-0.010) }$

OUR ESTIMATE

$0.001$ $\pm0.006$

DPWA

Multichannel

$0.025$ $\pm0.020$

DPWA

Multichannel

$-0.040$ $\pm0.010$

DPWA

${{\mathit \gamma}}$ ${{\mathit N}}$ $\rightarrow$ ${{\mathit \pi}}{{\mathit N}}$

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

$0.011$ $\pm0.002$

DPWA

Multichannel

$0.009$

DPWA

${{\mathit \gamma}}$ ${{\mathit N}}$ $\rightarrow$ ${{\mathit \pi}}{{\mathit N}}$

$-0.011$

DPWA

Multichannel

¹	Statistical error only.

References:

PR C99 055205

Updated determination of $N^*$ resonance parameters using a unitary, multichannel formalism

EPJ A49 67

Helicity Amplitudes for Photoexcitation of Nucleon Resonances off Neutrons

PR C86 015206

Amplitude Analysis of ${{\mathit \gamma}}$ ${{\mathit n}}$ $\rightarrow$ ${{\mathit \pi}^{-}}{{\mathit p}}$ Data above 1 GeV

PR C86 055203

Multichannel Parametrization of ${{\mathit \pi}}{{\mathit N}}$ Scattering Amplitudes and Extraction of Resonance Parameters

EPJ A34 69

Unitary Isobar Model $−$ MAID2007

PR C66 055212

Vector Meson Production and Nucleon Resonance Analysis in a Coupled Channel Approach for Energies ${\mathit m}_{{{\mathit N}}}$ $<$ $\sqrt {s }$ $<$ 2 GeV. 2. Photon Induced Results

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