6533b856fe1ef96bd12b30ed
RESEARCH PRODUCT
The complete experiment for photoproduction of pseudoscalar mesons in a truncated partial wave analysis
L. TiatorR. BeckY. Wunderlichsubject
Scattering cross-sectionPhysicsNuclear and High Energy PhysicsParticle physicsNuclear TheoryMesonPartial wave analysisSigmaFOS: Physical sciencesObservablePolarization (waves)Pseudoscalar mesonPseudoscalarNuclear Theory (nucl-th)High Energy Physics - PhenomenologyHigh Energy Physics - Phenomenology (hep-ph)description
The complete experiment problem in the truncated partial wave analysis of pseudoscalar meson photoproduction with suppressed t-channel exchanges is investigated. The focus is set to ambiguities of the group S observables with the unpolarized differential cross section, $\sigma_0$, and the three single-spin observables, $\Sigma$, $T$ and $P$. For this purpose, the approach and formalism already worked out by Omelaenko in 1981 is revisited in this work. A numerical study using multipoles of the PWA solution MAID2007 shows how only one additional double polarization observable can resolve all ambiguities. Therefore, the possibility emerges to perform a complete experiment with only five observables.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2013-12-01 |