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

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

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VALUE (MeV) DOCUMENT ID TECN  COMMENT $\bf{ 98\text{ to }102\text{ }(\approx100) }$ OUR ESTIMATE $98$ $\pm2$ $\pm1$ 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:

HUNT 2019 PR C99 055205 Updated determination of $N^*$ resonance parameters using a unitary, multichannel formalism ROENCHEN 2015A EPJ A51 70 ${{\mathit \eta}}$ Photoproduction in a Combined Analysis of Pion- and Photon-Induced Reactions SVARC 2014 PR C89 045205 Poles of Karlsruhe-Helsinki KH80 and KA84 Solutions Extracted by using the Laurent-Pietarinen Method ANISOVICH 2012A EPJ A48 15 Properties of Baryon Resonances from a Multichannel Partial Wave Analysis ANISOVICH 2010 EPJ A44 203 Photoproduction of Pions and Properties of Baryon Resonances from a Bonn-Gatchina Partial-Wave Analysis ARNDT 2006 PR C74 045205 Extended Partial-Wave Analysis of ${{\mathit \pi}}{{\mathit N}}$ Scattering Data ARNDT 2004 PR C69 035213 Dispersion Relation Constrained Partial Wave Analysis of ${{\mathit \pi}}{{\mathit N}}$ Elastic and ${{\mathit \pi}}$ ${{\mathit N}}$ $\rightarrow$ ${{\mathit \eta}}{{\mathit N}}$ Scattering Data: the Baryon Spectrum HOEHLER 1993 #d{pi N} Newsletter 9 1 Determination of ${{\mathit \pi}}{{\mathit N}}$ Resonance Pole Parameters CUTKOSKY 1980 Toronto Conf. 19 Pion $−$ Nucleon Partial Wave Analysis Also PR D20 2839 Pion Nucleon Partial Wave Amplitudes

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