${{\mathit N}}$ 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  (beta) PDGID:
B017

${{\mathit N}{(1990)}}$

$I(J^P)$ = $1/2(7/2^{+})$ 
Older and obsolete values are listed and referenced in the 2014 edition, Chinese Physics C38 070001 (2014).
${{\mathit N}{(1990)}}$ POLE POSITION
REAL PART
$-2{\times }$IMAGINARY PART
${{\mathit N}{(1990)}}$ ELASTIC POLE RESIDUE
MODULUS $\vert \mathit r\vert $
PHASE $\theta $
${{\mathit \Delta}{(1990)}}$ INELASTIC POLE RESIDUE
Normalized residue in ${{\mathit N}}$ ${{\mathit \pi}}$ $\rightarrow$ ${{\mathit N}{(1990)}}$ $\rightarrow$ ${{\mathit N}}{{\mathit \eta}}$   $0.048 \pm0.001$  
 
Normalized residue in ${{\mathit N}}$ ${{\mathit \pi}}$ $\rightarrow$ ${{\mathit N}{(1990)}}$ $\rightarrow$ ${{\mathit \Lambda}}{{\mathit K}}$   $0.004 \pm0.001$  
 
Normalized residue in ${{\mathit N}}$ ${{\mathit \pi}}$ $\rightarrow$ ${{\mathit N}{(1990)}}$ $\rightarrow$ ${{\mathit \Sigma}}{{\mathit K}}$
${{\mathit N}{(1990)}}$ BREIT-WIGNER MASS   $1950\text{ to }2100\text{ }(\approx2020) $ MeV 
 
${{\mathit N}{(1990)}}$ BREIT-WIGNER WIDTH   $200\text{ to }400\text{ }(\approx300) $ MeV 
 
${{\mathit N}{(1990)}}$ PHOTON DECAY AMPLITUDES AT THE POLE
${{\mathit N}{(1990)}}$ $\rightarrow$ ${{\mathit p}}{{\mathit \gamma}}$ , helicity-1/2 amplitude A$_{1/2}$
${{\mathit N}{(1990)}}$ $\rightarrow$ ${{\mathit p}}{{\mathit \gamma}}$ , helicity-3/2 amplitude A$_{3/2}$
${{\mathit N}{(1990)}}$ BREIT-WIGNER PHOTON DECAY AMPLITUDES
${{\mathit N}{(1990)}}$ $\rightarrow$ ${{\mathit p}}{{\mathit \gamma}}$ , helicity-1/2 amplitude A$_{1/2}$
${{\mathit N}{(1990)}}$ $\rightarrow$ ${{\mathit p}}{{\mathit \gamma}}$ , helicity-3/2 amplitude A$_{3/2}$
${{\mathit N}{(1990)}}$ $\rightarrow$ ${{\mathit n}}{{\mathit \gamma}}$ , helicity-1/2 amplitude A$_{1/2}$
${{\mathit N}{(1990)}}$ $\rightarrow$ ${{\mathit n}}{{\mathit \gamma}}$ , helicity-3/2 amplitude A$_{3/2}$
$\Gamma_{1}$ ${{\mathit N}}{{\mathit \pi}}$   $2 - 6$ $\%$ 785
 
$\Gamma_{2}$ ${{\mathit N}}{{\mathit \eta}}$   $<$3 $\%$ 671
 
$\Gamma_{3}$ ${{\mathit \Lambda}}{{\mathit K}}$   $5.9 - 6.1$ $\%$ 581
 
$\Gamma_{4}$ ${{\mathit p}}{{\mathit \gamma}}$   $0.01 - 0.12\%$ 792
 
$\Gamma_{5}$ ${{\mathit p}}{{\mathit \gamma}}$ , helicity=1/2   $0.003 - 0.042\%$ 792
 
$\Gamma_{6}$ ${{\mathit p}}{{\mathit \gamma}}$ , helicity=3/2   $0.009 - 0.075\%$ 792
 
$\Gamma_{7}$ ${{\mathit n}}{{\mathit \gamma}}$   $0.01 - 0.16\%$ 791
 
$\Gamma_{8}$ ${{\mathit n}}{{\mathit \gamma}}$ , helicity=1/2   $0.003 - 0.066\%$ 791
 
$\Gamma_{9}$ ${{\mathit n}}{{\mathit \gamma}}$ , helicity=3/2   $0.003 - 0.098\%$ 791
 
FOOTNOTES