▸ Expand all sections
▾ Collapse all sections
|
REAL PART
|
$1850\text{ to }1950\text{ }(\approx1900) $ MeV
|
|
$-2{\times }$IMAGINARY PART
|
$200\text{ to }400\text{ }(\approx300) $ MeV
|
|
MODULUS $\vert \mathit r\vert $
|
$8\text{ to }24\text{ }(\approx16) $ MeV
|
|
PHASE $\theta $
|
$-150\text{ to }-50\text{ }(\approx-100) $ $^\circ{}$
|
|
Normalized residue in ${{\mathit N}}$ ${{\mathit \pi}}$ $\rightarrow$ ${{\mathit \Delta}{(1920)}}$ $\rightarrow$ ${{\mathit \Delta}}{{\mathit \eta}}$
|
|
Normalized residue in ${{\mathit N}}$ ${{\mathit \pi}}$ $\rightarrow$ ${{\mathit \Delta}{(1920)}}$ $\rightarrow$ ${{\mathit \Sigma}}{{\mathit K}}$
|
|
Normalized residue in ${{\mathit N}}$ ${{\mathit \pi}}$ $\rightarrow$ ${{\mathit \Delta}{(1920)}}$ $\rightarrow$ ${{\mathit \Delta}}{{\mathit \pi}}$ , ${\mathit P}{\mathrm -wave}$
|
|
Normalized residue in ${{\mathit N}}$ ${{\mathit \pi}}$ $\rightarrow$ ${{\mathit \Delta}{(1920)}}$ $\rightarrow$ ${{\mathit \Delta}}{{\mathit \pi}}$ , ${\mathit F}{\mathrm -wave}$
|
|
Normalized residue in ${{\mathit N}}$ ${{\mathit \pi}}$ $\rightarrow$ ${{\mathit \Delta}{(1920)}}$ $\rightarrow$ ${{\mathit N}{(1535)}}{{\mathit \pi}}$
|
|
Normalized residue in ${{\mathit N}}$ ${{\mathit \pi}}$ $\rightarrow$ ${{\mathit \Delta}{(1920)}}$ $\rightarrow$ ${{\mathit N}}{{\mathit a}_{{0}}{(980)}}$
|
|
Normalized residue in ${{\mathit N}}$ ${{\mathit \pi}}$ $\rightarrow$ ${{\mathit \Delta}{(1920)}}$ $\rightarrow$ ${{\mathit N}{(1440)}}{{\mathit \pi}}$
|
|
Normalized residue in ${{\mathit N}}$ ${{\mathit \pi}}$ $\rightarrow$ ${{\mathit \Delta}{(1920)}}$ $\rightarrow$ ${{\mathit N}{(1520)}}{{\mathit \pi}}$ , ${\mathit S}{\mathrm -wave}$
|
|
${{\mathit \Delta}{(1920)}}$ BREIT-WIGNER MASS
|
$1870\text{ to }1970\text{ }(\approx1920) $ MeV
|
|
${{\mathit \Delta}{(1920)}}$ BREIT-WIGNER WIDTH
|
$240\text{ to }360\text{ }(\approx300) $ MeV
|
|
${{\mathit \Delta}{(1920)}}$ $\rightarrow$ ${{\mathit N}}{{\mathit \gamma}}$ , helicity-1/2 amplitude A$_{1/2}$
|
|
${{\mathit \Delta}{(1920)}}$ $\rightarrow$ ${{\mathit N}}{{\mathit \gamma}}$ , helicity-3/2 amplitude A$_{3/2}$
|
|
${{\mathit \Delta}{(1920)}}$ $\rightarrow$ ${{\mathit N}}{{\mathit \gamma}}$ , helicity-1/2 amplitude A$_{1/2}$
|
|
${{\mathit \Delta}{(1920)}}$ $\rightarrow$ ${{\mathit N}}{{\mathit \gamma}}$ , helicity-3/2 amplitude A$_{3/2}$
|
|
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$-20\%$
| | 723 |
| $\Gamma_{2}$ | ${{\mathit \Sigma}}{{\mathit K}}$ | |
$2 - 6\%$
| | 431 |
| $\Gamma_{3}$ | ${{\mathit N}}{{\mathit \pi}}{{\mathit \pi}}$ | |
| | 699 |
| $\Gamma_{4}$ | ${{\mathit \Delta}{(1232)}}{{\mathit \pi}}$ | |
$50 - 90\%$
| | 553 |
| $\Gamma_{5}$ | ${{\mathit \Delta}{(1232)}}{{\mathit \pi}}$ , ${\mathit P}{\mathrm -wave}$ | |
$8 - 28\%$
| | 553 |
| $\Gamma_{6}$ | ${{\mathit \Delta}{(1232)}}{{\mathit \pi}}$ , ${\mathit F}{\mathrm -wave}$ | |
$44 - 72\%$
| | 553 |
| $\Gamma_{7}$ | ${{\mathit N}{(1440)}}{{\mathit \pi}}$ , ${\mathit P}{\mathrm -wave}$ | |
$<4\%$
| | 403 |
| $\Gamma_{8}$ | ${{\mathit N}{(1520)}}{{\mathit \pi}}$ , ${\mathit S}{\mathrm -wave}$ | |
$<5\%$
| | 341 |
| $\Gamma_{9}$ | ${{\mathit N}{(1535)}}{{\mathit \pi}}$ | |
$<2\%$
| | 328 |
| $\Gamma_{10}$ | ${{\mathit N}}{{\mathit a}_{{0}}{(980)}}$ | |
seen
| | 41 |
| $\Gamma_{11}$ | ${{\mathit \Delta}{(1232)}}{{\mathit \eta}}$ | |
$5 - 17\%$
| | 336 |
|
|