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${{\mathit \Delta}{(1940)}}$ ELASTIC POLE RESIDUE

PHASE $\theta $

VALUE ($^\circ{}$)

DOCUMENT ID

TECN

COMMENT

$\bf{ 150\text{ to }250\text{ }(\approx200) }$

OUR ESTIMATE

$-90$ $\pm35$

DPWA

Multichannel

$140$ $\pm7$ $\pm7$

L+P

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

$135$ $\pm45$

IPWA

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

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

$-50$ $\pm35$

DPWA

Multichannel

¹	Fit to the amplitudes of HOEHLER 1979 .

References:

EPJ A51 95

High-Statistics Study of the Reaction ${{\mathit \gamma}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit p}}$2 ${{\mathit \pi}^{0}}$

EPJ A50 74

High Statistics Study of the Reaction

PR C89 045205

Poles of Karlsruhe-Helsinki KH80 and KA84 Solutions Extracted by using the Laurent-Pietarinen Method

Toronto Conf. 19

Pion $−$ Nucleon Partial Wave Analysis

PR D20 2839

Pion Nucleon Partial Wave Amplitudes

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