${{\boldsymbol N}}$ BARYONS
($\boldsymbol S$ = 0, $\boldsymbol I$ = 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
$\Gamma_{3}$ ${{\mathit N}}{{\mathit \pi}}{{\mathit \pi}}$ 660
$\Gamma_{4}$ ${{\mathit N}}{{\mathit \sigma}}$ $35 - 47\%$539
$\Gamma_{5}$ ${{\mathit p}}{{\mathit \gamma}}$ 693
$\Gamma_{6}$ ${{\mathit p}}{{\mathit \gamma}}$ , helicity=1/2 seen693
$\Gamma_{7}$ ${{\mathit p}}{{\mathit \gamma}}$ , helicity=3/2 seen693
$\Gamma_{8}$ ${{\mathit n}}{{\mathit \gamma}}$ $0.0017 - 0.062\%$693
$\Gamma_{9}$ ${{\mathit n}}{{\mathit \gamma}}$ , helicity=1/2 $0.0003 - 0.019\%$693
$\Gamma_{10}$ ${{\mathit n}}{{\mathit \gamma}}$ , helicity=3/2 $0.0014 - 0.043\%$693