${{\boldsymbol N}}$ BARYONS
($\boldsymbol S$ = 0, $\boldsymbol I$ = 1/2)
${{\mathit p}}$, ${{\mathit N}^{+}}$ = ${\mathit {\mathit u}}$ ${\mathit {\mathit u}}$ ${\mathit {\mathit d}}$; ${{\mathit n}}$, ${{\mathit N}^{0}}$ = ${\mathit {\mathit u}}$ ${\mathit {\mathit d}}$ ${\mathit {\mathit d}}$
INSPIRE search

${{\boldsymbol N}{(1880)}}$ $I(J^P)$ = $1/2(1/2^{+})$ 

${{\boldsymbol N}{(1880)}}$ POLE POSITION
REAL PART   $1820\text{ to }1900\text{ }(\approx1860) $ MeV 
$-2{\times }$IMAGINARY PART   $180\text{ to }280\text{ }(\approx230) $ MeV 
${{\boldsymbol N}{(1880)}}$ ELASTIC POLE RESIDUE
MODULUS $\vert \mathit r\vert $
PHASE $\theta $
${{\boldsymbol N}{(1880)}}$ INELASTIC POLE RESIDUE
Normalized residue in ${{\mathit N}}$ ${{\mathit \pi}}$ $\rightarrow$ ${{\mathit N}{(1880)}}$ $\rightarrow$ ${{\mathit N}}{{\mathit \eta}}$
Normalized residue in ${{\mathit N}}$ ${{\mathit \pi}}$ $\rightarrow$ ${{\mathit N}{(1880)}}$ $\rightarrow$ ${{\mathit \Lambda}}{{\mathit K}}$
Normalized residue in ${{\mathit N}}$ ${{\mathit \pi}}$ $\rightarrow$ ${{\mathit N}{(1880)}}$ $\rightarrow$ ${{\mathit \Sigma}}{{\mathit K}}$
Normalized residue in ${{\mathit N}}$ ${{\mathit \pi}}$ $\rightarrow$ ${{\mathit N}{(1880)}}$ $\rightarrow$ ${{\mathit \Delta}}{{\mathit \pi}}$ , ${\mathit P}{\mathrm -wave}$
Normalized residue in ${{\mathit N}}$ ${{\mathit \pi}}$ $\rightarrow$ ${{\mathit N}{(1880)}}$ $\rightarrow$ ${{\mathit N}{(1535)}}{{\mathit \pi}}$
Normalized residue in ${{\mathit N}}$ ${{\mathit \pi}}$ $\rightarrow$ ${{\mathit N}{(1880)}}$ $\rightarrow$ ${{\mathit N}}{{\mathit a}_{{0}}{(980)}}$
Normalized residue in ${{\mathit N}}$ ${{\mathit \pi}}$ $\rightarrow$ ${{\mathit N}{(1880)}}$ $\rightarrow$ ${{\mathit N}}{{\mathit \sigma}}$
${{\mathit N}{(1880)}}$ BREIT-WIGNER MASS   $1830\text{ to }1930\text{ }(\approx1880) $ MeV 
${{\mathit N}{(1880)}}$ BREIT-WIGNER WIDTH   $200\text{ to }400\text{ }(\approx300) $ MeV 
${{\boldsymbol N}{(1880)}}$ BREIT-WIGNER PHOTON DECAY AMPLITUDES
${{\mathit N}{(1880)}}$ $\rightarrow$ ${{\mathit p}}{{\mathit \gamma}}$ , helicity-1/2 amplitude A$_{1/2}$
${{\mathit N}{(1880)}}$ $\rightarrow$ ${{\mathit n}}{{\mathit \gamma}}$ , helicity-1/2 amplitude A$_{1/2}$
$\Gamma_{1}$ ${{\mathit N}}{{\mathit \pi}}$  $3 - 9\%$ 698
$\Gamma_{2}$ ${{\mathit N}}{{\mathit \eta}}$  $5 - 55\%$ 563
$\Gamma_{3}$ ${{\mathit N}}{{\mathit \omega}}$  $12 - 28\%$ 377
$\Gamma_{4}$ ${{\mathit \Lambda}}{{\mathit K}}$  $12 - 28\%$ 459
$\Gamma_{5}$ ${{\mathit \Sigma}}{{\mathit K}}$  $10 - 24\%$ 389
$\Gamma_{6}$ ${{\mathit N}}{{\mathit \pi}}{{\mathit \pi}}$  $30 - 80\%$ 673
$\Gamma_{7}$ ${{\mathit \Delta}{(1232)}}{{\mathit \pi}}$  $18 - 42\%$ 524
$\Gamma_{8}$ ${{\mathit N}}{{\mathit \rho}}$ , $\mathit S$=1/2  385
$\Gamma_{9}$ ${{\mathit N}}{{\mathit \sigma}}$  $10 - 40\%$ 539
$\Gamma_{10}$ ${{\mathit N}{(1535)}}{{\mathit \pi}}$  $4 - 12\%$ 293
$\Gamma_{11}$ ${{\mathit N}}{{\mathit a}_{{0}}{(980)}}$  $1 - 5\%$ -1
$\Gamma_{12}$ ${{\mathit \Lambda}}{{\mathit K}^{*}{(892)}}$  $0.5 - 1\%$ -1
$\Gamma_{13}$ ${{\mathit p}}{{\mathit \gamma}}$ , helicity=1/2  seen 706
$\Gamma_{14}$ ${{\mathit n}}{{\mathit \gamma}}$ , helicity=1/2  $0.002 - 0.63\%$ 705