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${{\mathit N}{(1440)}}$ ELASTIC POLE RESIDUE

MODULUS $\vert \mathit r\vert $

INSPIRE JSON (beta) PDGID:

VALUE (MeV)

DOCUMENT ID

TECN

COMMENT

$\bf{ 50\text{ to }60\text{ }(\approx55) }$

OUR ESTIMATE

$58$ $\pm15$ $\pm17$

RVUE

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

$59$ $\pm1$

DPWA

Multichannel

$49$ $\pm3$

DPWA

Multichannel

$50$ $\pm1$ $\pm2$

L+P

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

$52$ $\pm5$

IPWA

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

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

$62$

DPWA

Multichannel

$126$

DPWA

Multichannel

$48$ $\pm3$

DPWA

Multichannel

$44$

DPWA

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

$38$

DPWA

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

$40$

SPED

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

¹	Roy-Steiner equations and Pade methods applied to ${{\mathit \pi}}{{\mathit N}}$ scattering amplitudes and pionic atom data.

²	Fit to the amplitudes of HOEHLER 1979.

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