6533b883fe1ef96bd12dc018
RESEARCH PRODUCT
"Decay Phase-Space Volume of Partial Waves" of "Light isovector resonances in $\pi^- p \to \pi^-\pi^-\pi^+ p$ at 190 GeV/${\it c}$"
Compass Collaborationsubject
PI- P --> PI2(2005)- PLight-Meson SpectroscopyIsobar ModelPI- P --> PI- F2(1270) PAmplitude AnalysisPI- P --> PI1(1600)- PDiffractivePI- P --> A1(1420)- PPI- P --> A1(1260)- PPI- P --> A2(1320)- PPI- P --> A1(1640)- PPI- P --> A4(2040)- PPI- P --> PI- RHO0 PPI- P --> PI- F0(980) PPI- P --> PI- PI- PI+ PPI- P --> PI2(1670)- PPI- P --> A2(1700)- PExclusivePI- P --> PI(1800)- PPI- P --> PI2(1880)- PPion-Proton Scatteringdescription
Decay phase-space volume $I_{aa}$ for the 14 selected partial waves as a function of $m_{3\pi}$, normalized such that $I_{aa}(m_{3\pi} = 2.5~\text{GeV}/c^2) = 1$. The wave index $a$ represents the quantum numbers that uniquely define the partial wave. The quantum numbers are given by the shorthand notation $J^{PC} M^\varepsilon [$isobar$] \pi L$. We use this notation to label the decay phase-space volume in the column headers. The labels are identical to the ones used in the column headers of the table of the transition amplitudes. $I_{aa}$ is calculated using Monte Carlo integration techniques for fixed $m_{3\pi}$ values, which are given in the first column, in the range from 0.5 to 2.5 GeV/$c^2$ in steps of 10 MeV/$c^2$. The statistical uncertainties given for $I_{aa}$ are due to the finite number of Monte Carlo events. $I_{aa}(m_{3\pi})$ is defined in Eq. (6) in the paper and appears in the resonance model in Eqs. (19) and (20).
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2018-01-01 |