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${{\mathit N}{(1440)}}$ BREIT-WIGNER PHOTON DECAY AMPLITUDES

${{\mathit N}{(1440)}}$ $\rightarrow$ ${{\mathit p}}{{\mathit \gamma}}$ , helicity-1/2 amplitude A$_{1/2}$

INSPIRE   PDGID:

B061A1

VALUE (GeV${}^{−1/2}$) DOCUMENT ID TECN  COMMENT $\bf{ -0.080\text{ to }-0.050\text{ }(\approx-0.065) }$ OUR ESTIMATE $-0.091$ $\pm0.007$ 1 HUNT 2019 DPWA Multichannel $-0.061$ $\pm0.006$ SOKHOYAN 2015 A DPWA Multichannel $-0.085$ $\pm0.003$ 1 SHKLYAR 2013 DPWA Multichannel $-0.056$ $\pm0.001$ 1 WORKMAN 2012 A DPWA ${{\mathit \gamma}}$ ${{\mathit N}}$ $\rightarrow$ ${{\mathit N}}{{\mathit \pi}}$ $-0.051$ $\pm0.002$ 1 DUGGER 2007 DPWA ${{\mathit \gamma}}$ ${{\mathit N}}$ $\rightarrow$ ${{\mathit \pi}}{{\mathit N}}$ • • We do not use the following data for averages, fits, limits, etc. • • $-0.061$ $\pm0.008$ ANISOVICH 2012 A DPWA Multichannel $-0.084$ $\pm0.003$ 1 SHRESTHA 2012 A DPWA Multichannel $-0.061$ DRECHSEL 2007 DPWA ${{\mathit \gamma}}$ ${{\mathit N}}$ $\rightarrow$ ${{\mathit \pi}}{{\mathit N}}$ $-0.087$ PENNER 2002 D DPWA Multichannel 1  Statistical error only.

References:

HUNT 2019 PR C99 055205 Updated determination of $N^*$ resonance parameters using a unitary, multichannel formalism SOKHOYAN 2015A EPJ A51 95 High-Statistics Study of the Reaction ${{\mathit \gamma}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit p}}$2 ${{\mathit \pi}^{0}}$ SHKLYAR 2013 PR C87 015201 Eta-meson Production in the Resonance Energy Region ANISOVICH 2012A EPJ A48 15 Properties of Baryon Resonances from a Multichannel Partial Wave Analysis SHRESTHA 2012A PR C86 055203 Multichannel Parametrization of ${{\mathit \pi}}{{\mathit N}}$ Scattering Amplitudes and Extraction of Resonance Parameters WORKMAN 2012A PR C86 015202 Unified Chew-Mandelstam SAID Analysis of Pion Photoproduction Data DRECHSEL 2007 EPJ A34 69 Unitary Isobar Model $−$ MAID2007 DUGGER 2007 PR C76 025211 ${{\mathit \pi}^{0}}$ Photoproduction on the Proton for Photon Energies from 0.675 to 2.875 GeV PENNER 2002D 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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