${{\mathit N}}$ 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:
B024

${{\mathit N}{(2120)}}$

$I(J^P)$ = $1/2(3/2^{-})$ 
Before the 2012 $\mathit Review$, all the evidence for a $\mathit J{}^{P} = 3/2{}^{-}$ state with a mass above 1800 MeV was filed under a two-star ${{\mathit N}{(2080)}}$. There is now evidence from ANISOVICH 2012A for two ${}^{}3/2{}^{-}$ states in this region, so we have split the older data (according to mass) between a three-star ${{\mathit N}{(1875)}}$ and a two-star ${{\mathit N}{(2120)}}$.
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▸  ${{\mathit N}{(2120)}}$ POLE POSITION
▸  ${{\mathit N}{(2120)}}$ ELASTIC POLE RESIDUE
▸  ${{\mathit N}{(2120)}}$ INELASTIC POLE RESIDUE
${{\mathit N}{(2120)}}$ BREIT-WIGNER MASS 2060 TO 2160 $(\approx 2120 )$ MeV 
 
${{\mathit N}{(2120)}}$ BREIT-WIGNER WIDTH 260 TO 360 $(\approx 300 )$ MeV 
 
▸  ${{\mathit N}{(2120)}}$ PHOTON DECAY AMPLITUDES AT THE POLE
▸  ${{\mathit N}{(2120)}}$ BREIT-WIGNER PHOTON DECAY AMPLITUDES
Mode  
Fraction ($\Gamma_i$ / $\Gamma$) Scale Factor/
Conf. Level
P(MeV/c)  
$\Gamma_{1}$ ${{\mathit N}}{{\mathit \pi}}$ $(5 - 15) \%$ 846
 
$\Gamma_{2}$ ${{\mathit N}}{{\mathit \eta}}$ $(1 - 5) \%$ 743
 
$\Gamma_{3}$ ${{\mathit N}}{{\mathit \eta}^{\,'}}$ $(2 - 6) \%$ 474
 
$\Gamma_{4}$ ${{\mathit N}}{{\mathit \omega}}$ $(4 - 20) \%$ 617
 
$\Gamma_{5}$ ${{\mathit \Lambda}}{{\mathit K}}$ $(6 - 11) \%$ 660
 
$\Gamma_{6}$ ${{\mathit N}}{{\mathit \pi}}{{\mathit \pi}}$ >27 $\%$ 827
 
$\Gamma_{7}$ ${{\mathit \Delta}{(1232)}}{{\mathit \pi}}$ >23 $\%$ 693
 
$\Gamma_{8}$ ${{\mathit \Delta}{(1232)}}{{\mathit \pi}}$ , ${\mathit S}{\mathrm -wave}$ $(15 - 70) \%$ 693
 
$\Gamma_{9}$ ${{\mathit \Delta}{(1232)}}{{\mathit \pi}}$ , ${\mathit D}{\mathrm -wave}$ $(8 - 45) \%$ 693
 
$\Gamma_{10}$ ${{\mathit N}}{{\mathit \rho}}$ , $\mathit S$=3/2 , ${\mathit S}{\mathrm -wave}$ < 3 $\%$ 622
 
$\Gamma_{11}$ ${{\mathit N}}{{\mathit \sigma}}$ $(4 - 15) \%$  
 
$\Gamma_{12}$ ${{\mathit N}{(1535)}}{{\mathit \pi}}$ $(7 - 23) \%$ 494
 
$\Gamma_{13}$ ${{\mathit \Lambda}}{{\mathit K}^{*}{(892)}}$ < 0.2 $\%$ 339
 
$\Gamma_{14}$ ${{\mathit p}}{{\mathit \gamma}}$ $(0.16 - 2.1) \%$ 852
 
$\Gamma_{15}$ ${{\mathit p}}{{\mathit \gamma}}$ , helicity=1/2 $(0.07 - 0.80) \%$ 852
 
$\Gamma_{16}$ ${{\mathit p}}{{\mathit \gamma}}$ , helicity=3/2 $(0.09 - 1.3) \%$ 852
 
$\Gamma_{17}$ ${{\mathit n}}{{\mathit \gamma}}$ $(0.04 - 0.72) \%$ 852
 
$\Gamma_{18}$ ${{\mathit n}}{{\mathit \gamma}}$ , helicity=1/2 $(0.04 - 0.60) \%$ 852
 
$\Gamma_{19}$ ${{\mathit n}}{{\mathit \gamma}}$ , helicity=3/2 $(0.001 - 0.12) \%$ 852