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

REAL PART, MIXED CHARGES

INSPIRE search
VALUE (MeV) DOCUMENT ID TECN  COMMENT
$\bf{ 1209\text{ to }1211\text{ }(\approx1210) }$ OUR ESTIMATE
$1211$ $\pm1$ $\pm1$ 1
SVARC
2014
L+P ${{\mathit \pi}}$ ${{\mathit N}}$ $\rightarrow$ ${{\mathit \pi}}{{\mathit N}}$
$1210.5$ $\pm1.0$
ANISOVICH
2012A
DPWA Multichannel
$1210$ $\pm1$
CUTKOSKY
1980
IPWA ${{\mathit \pi}}$ ${{\mathit N}}$ $\rightarrow$ ${{\mathit \pi}}{{\mathit N}}$
• • We do not use the following data for averages, fits, limits, etc. • •
$1212.4$
HUNT
2019
DPWA Multichannel
$1218$
ROENCHEN
2015A
DPWA Multichannel
$1211$ $\pm1$
ANISOVICH
2010
DPWA Multichannel
$1211$
ARNDT
2006
DPWA ${{\mathit \pi}}$ ${{\mathit N}}$ $\rightarrow$ ${{\mathit \pi}}{{\mathit N}}$ , ${{\mathit \eta}}{{\mathit N}}$
$1210$
ARNDT
2004
DPWA ${{\mathit \pi}}$ ${{\mathit N}}$ $\rightarrow$ ${{\mathit \pi}}{{\mathit N}}$ , ${{\mathit \eta}}{{\mathit N}}$
$1209$ 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
${{\mathit \pi}}{{\mathit N}}$ 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