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${{\mathit \Delta}{(1232)}}$ POLE POSITIONS

$-2{\times }$IMAGINARY PART, MIXED CHARGES

INSPIRE   PDGID:

B033IM

VALUE (MeV) DOCUMENT ID TECN  COMMENT $\bf{ 98\text{ to }102\text{ }(\approx100) }$ OUR ESTIMATE $93$ $\pm1$ ROENCHEN 2022 DPWA Multichannel $98$ $\pm2$ $\pm1$ 1 SVARC 2014 L+P ${{\mathit \pi}}$ ${{\mathit N}}$ $\rightarrow$ ${{\mathit \pi}}{{\mathit N}}$ $99$ $\pm2$ ANISOVICH 2012 A DPWA Multichannel $100$ $\pm2$ CUTKOSKY 1980 IPWA ${{\mathit \pi}}$ ${{\mathit N}}$ $\rightarrow$ ${{\mathit \pi}}{{\mathit N}}$ • • We do not use the following data for averages, fits, limits, etc. • • $96.8$ HUNT 2019 DPWA Multichannel $92$ ROENCHEN 2015 A DPWA Multichannel $100$ $\pm2$ ANISOVICH 2010 DPWA Multichannel $99$ ARNDT 2006 DPWA ${{\mathit \pi}}$ ${{\mathit N}}$ $\rightarrow$ ${{\mathit \pi}}{{\mathit N}}$, ${{\mathit \eta}}{{\mathit N}}$ $100$ ARNDT 2004 DPWA ${{\mathit \pi}}$ ${{\mathit N}}$ $\rightarrow$ ${{\mathit \pi}}{{\mathit N}}$, ${{\mathit \eta}}{{\mathit N}}$ $100$ 2 HOEHLER 1993 ARGD ${{\mathit \pi}}$ ${{\mathit N}}$ $\rightarrow$ ${{\mathit \pi}}{{\mathit N}}$ 1  Fit to the amplitudes of HOEHLER 1979. 2  See HOEHLER 1993 for a detailed discussion of the evidence for and the pole parameters of ${{\mathit N}}$ and ${{\mathit \Delta}}$ resonances as determined from Argand diagrams of ${{\mathit \pi}}{{\mathit N}}$ elastic partial-wave amplitudes and from plots of the speeds with which the amplitudes traverse the diagrams.

References

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