${{\mathit N}}$ 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 search

${{\boldsymbol N}{(1860)}}$

$I(J^P)$ = $1/2(5/2^{+})$ 
Before the 2012 $\mathit Review$, all the evidence for a $\mathit J{}^{P} = 5/2{}^{+}$ state with a mass above 1800 MeV was filed under a two-star ${{\mathit N}{(2000)}}$. There is now some evidence from ANISOVICH 2012A for two ${}^{}5/2{}^{+}$ states in this region, so we have split the older data (according to mass) between two two-star ${}^{}5/2{}^{+}$ states, an ${{\mathit N}{(1860)}}$ and an ${{\mathit N}{(2000)}}$.
${{\boldsymbol N}{(1860)}}$ POLE POSITION
REAL PART
 
$-2{\times }$IMAGINARY PART
 
${{\boldsymbol N}{(1860)}}$ ELASTIC POLE RESIDUE
MODULUS $\vert \mathit r\vert $
 
PHASE $\theta $
 
${{\mathit N}{(1860)}}$ BREIT-WIGNER MASS
 
${{\mathit N}{(1860)}}$ BREIT-WIGNER WIDTH
 
${{\boldsymbol N}{(1860)}}$ BREIT-WIGNER PHOTON DECAY AMPLITUDES
${{\mathit N}{(1860)}}$ $\rightarrow$ ${{\mathit p}}{{\mathit \gamma}}$ , helicity-1/2 amplitude A$_{1/2}$
 
${{\mathit N}{(1860)}}$ $\rightarrow$ ${{\mathit p}}{{\mathit \gamma}}$ , helicity-3/2 amplitude A$_{3/2}$
 
${{\mathit N}{(1860)}}$ $\rightarrow$ ${{\mathit n}}{{\mathit \gamma}}$ , helicity-1/2 amplitude A$_{1/2}$
 
${{\mathit N}{(1860)}}$ $\rightarrow$ ${{\mathit n}}{{\mathit \gamma}}$ , helicity-3/2 amplitude A$_{3/2}$
 
$\Gamma_{1}$ ${{\mathit N}}{{\mathit \pi}}$  $4 - 20\%$ 685
 
$\Gamma_{2}$ ${{\mathit N}}{{\mathit \eta}}$  $2 - 6\%$ 547
 
$\Gamma_{3}$ ${{\mathit \Lambda}}{{\mathit K}}$  439
 
$\Gamma_{4}$ ${{\mathit N}}{{\mathit \pi}}{{\mathit \pi}}$  660
 
$\Gamma_{5}$ ${{\mathit \Delta}}{{\mathit \pi}}$  509
 
$\Gamma_{6}$ ${{\mathit \Delta}}{{\mathit \pi}}$ , ${\mathit P}{\mathrm -wave}$  509
 
$\Gamma_{7}$ ${{\mathit \Delta}}{{\mathit \pi}}$ , ${\mathit F}{\mathrm -wave}$  509
 
$\Gamma_{8}$ ${{\mathit N}}{{\mathit \rho}}$  360
 
$\Gamma_{9}$ ${{\mathit N}}{{\mathit \rho}}$ , $\mathit S$=3/2 , ${\mathit P}{\mathrm -wave}$  360
 
$\Gamma_{10}$ ${{\mathit N}}{{\mathit \rho}}$ , $\mathit S$=3/2 , ${\mathit F}{\mathrm -wave}$  360
 
$\Gamma_{11}$ ${{\mathit N}}{{\mathit \sigma}}$  $35 - 47\%$ 539
 
$\Gamma_{12}$ ${{\mathit p}}{{\mathit \gamma}}$  693
 
$\Gamma_{13}$ ${{\mathit p}}{{\mathit \gamma}}$ , helicity=1/2  seen 693
 
$\Gamma_{14}$ ${{\mathit p}}{{\mathit \gamma}}$ , helicity=3/2  seen 693
 
$\Gamma_{15}$ ${{\mathit n}}{{\mathit \gamma}}$  $0.0017 - 0.062\%$ 693
 
$\Gamma_{16}$ ${{\mathit n}}{{\mathit \gamma}}$ , helicity=1/2  $0.0003 - 0.019\%$ 693
 
$\Gamma_{17}$ ${{\mathit n}}{{\mathit \gamma}}$ , helicity=3/2  $0.0014 - 0.043\%$ 693
 
FOOTNOTES