${{\mathit N}}$ BARYONS
($\mathit S$ = 0, $\mathit I$ = 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   JSON PDGID:
B087

${{\mathit N}{(1880)}}$

$I(J^P)$ = $1/2(1/2^{+})$ 
${{\mathit N}{(1880)}}$ POLE POSITION
REAL PART   $1820\text{ to }1900\text{ }(\approx1860) $ MeV 
 
$-2{\times }$IMAGINARY PART   $180\text{ to }280\text{ }(\approx230) $ MeV 
 
${{\mathit N}{(1880)}}$ ELASTIC POLE RESIDUE
MODULUS $\vert \mathit r\vert $
PHASE $\theta $
${{\mathit N}{(1880)}}$ 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 
 
${{\mathit N}{(1880)}}$ PHOTON DECAY AMPLITUDES AT THE POLE
${{\mathit N}{(1880)}}$ $\rightarrow$ ${{\mathit n}}{{\mathit \gamma}}$ , helicity-1/2 amplitude A$_{1/2}$
${{\mathit N}{(1880)}}$ 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$_{1/2}$
$\Gamma_{1}$ ${{\mathit N}}{{\mathit \pi}}$   $3 - 31$ $\%$ 698
 
$\Gamma_{2}$ ${{\mathit N}}{{\mathit \eta}}$   $1 - 55$ $\%$ 563
 
$\Gamma_{3}$ ${{\mathit N}}{{\mathit \omega}}$   $12 - 28$ $\%$ 377
 
$\Gamma_{4}$ ${{\mathit \Lambda}}{{\mathit K}}$   $1 - 3$ $\%$ 459
 
$\Gamma_{5}$ ${{\mathit \Sigma}}{{\mathit K}}$   $10 - 24$ $\%$ 389
 
$\Gamma_{6}$ ${{\mathit N}}{{\mathit \pi}}{{\mathit \pi}}$   $>$32 $\%$ 673
 
$\Gamma_{7}$ ${{\mathit \Delta}{(1232)}}{{\mathit \pi}}$   $5 - 42$ $\%$ 524
 
$\Gamma_{8}$ ${{\mathit N}}{{\mathit \rho}}$ , $\mathit S$=1/2, ${\mathit P}{\mathrm -wave}$   $19 - 45$ $\%$ 385
 
$\Gamma_{9}$ ${{\mathit N}}{{\mathit \sigma}}$   $8 - 40$ $\%$ 539
 
$\Gamma_{10}$ ${{\mathit N}{(1535)}}{{\mathit \pi}}$   $4 - 12$ $\%$ 293
 
$\Gamma_{11}$ ${{\mathit N}}{{\mathit a}_{{{0}}}{(980)}}$   $1 - 5$ $\%$ -1
 
$\Gamma_{12}$ ${{\mathit \Lambda}}{{\mathit K}^{*}{(892)}}$   $0.5 - 1.1$ $\%$ -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
 
FOOTNOTES