pdgLive Home   >   ${{\mathit N}}$ BARYONS ($\mathit S$ = 0, $\mathit I$ = 1/2)   >   ${{\mathit N}{(2250)}}$

${{\mathit N}}$ 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: B113

${{\mathit N}{(2250)}}$ $I(J^P)$ = $1/2(9/2^{-})$

Older and obsolete values are listed and referenced in the 2014 edition, Chinese Physics C38 070001 (2014).

Expand/Collapse All

▸  exp ${{\mathit N}{(2250)}}$ POLE POSITION

REAL PART 2100 TO 2200 $(\approx 2150 )$ MeV

$-2{\times }$IMAGINARY PART 350 TO 500 $(\approx 420 )$ MeV

▸  exp ${{\mathit N}{(2250)}}$ ELASTIC POLE RESIDUE

MODULUS $\vert \mathit r\vert $ 15 TO 30 $(\approx 25 )$ MeV

PHASE $\theta $ -60 TO -20 $(\approx -40 )$ $^\circ{}$

▸  exp ${{\mathit N}{(2250)}}$ INELASTIC POLE RESIDUE

Normalized residue in ${{\mathit N}}$ ${{\mathit \pi}}$ $\rightarrow$ ${{\mathit N}{(2250)}}$ $\rightarrow$ ${{\mathit N}}{{\mathit \eta}}$

Normalized residue in ${{\mathit N}}$ ${{\mathit \pi}}$ $\rightarrow$ ${{\mathit N}{(2250)}}$ $\rightarrow$ ${{\mathit \Lambda}}{{\mathit K}}$

Normalized residue in ${{\mathit N}}$ ${{\mathit \pi}}$ $\rightarrow$ ${{\mathit N}{(2250)}}$ $\rightarrow$ ${{\mathit \Sigma}}{{\mathit K}}$

${{\mathit N}{(2250)}}$ BREIT-WIGNER MASS 2250 TO 2320 $(\approx 2280 )$ MeV

${{\mathit N}{(2250)}}$ BREIT-WIGNER WIDTH 300 TO 600 $(\approx 500 )$ MeV

▸  exp ${{\mathit N}{(2250)}}$ PHOTON DECAY AMPLITUDES AT THE POLE

${{\mathit N}{(2250)}}$ $\rightarrow$ ${{\mathit p}}{{\mathit \gamma}}$ , helicity-1/2 amplitude A$_{1/2}$

${{\mathit N}{(2250)}}$ $\rightarrow$ ${{\mathit p}}{{\mathit \gamma}}$ , helicity-3/2 amplitude A$_{3/2}$

▸  exp ${{\mathit N}{(2250)}}$ BREIT-WIGNER PHOTON DECAY AMPLITUDES

${{\mathit N}{(2250)}}$ $\rightarrow$ ${{\mathit p}}{{\mathit \gamma}}$ , helicity-1/2 amplitude A$_{1/2}$

${{\mathit N}{(2250)}}$ $\rightarrow$ ${{\mathit p}}{{\mathit \gamma}}$ , helicity-3/2 amplitude A$_{3/2}$

${{\mathit N}{(2250)}}$ DECAY MODES
The following branching fractions are our estimates, not fits or averages.
Mode   Fraction ($\Gamma_i$ / $\Gamma$) Scale Factor/ Conf. Level P(MeV/c)   $\Gamma_{1}$ ${{\mathit N}}{{\mathit \pi}}$ $(5 - 15) \%$ 941   $\Gamma_{2}$ ${{\mathit N}}{{\mathit \eta}}$ <5 $\%$ 852   $\Gamma_{3}$ ${{\mathit \Lambda}}{{\mathit K}}$ $(1 - 3) \%$ 777