6533b82afe1ef96bd128b71c
RESEARCH PRODUCT
Regge phenomenology of theN*andΔ*poles
J. A. Silva-castroAlessandro PilloniAlessandro PilloniCésar Fernández-ramírezGeoffrey C. FoxAdam P. SzczepaniakAdam P. SzczepaniakJannes NysA. JackuraVincent MathieuMiguel AlbaladejoMiguel AlbaladejoIgor Danilkinsubject
PhysicsParticle physicsMeson010308 nuclear & particles physicsScatteringHigh Energy Physics::LatticePartial wave analysisHigh Energy Physics::PhenomenologyState (functional analysis)01 natural sciencesBaryonHadron spectroscopy0103 physical sciencesHigh Energy Physics::Experiment010306 general physicsNucleonPhenomenology (particle physics)description
We use Regge phenomenology to study the structure of the poles of the ${N}^{*}$ and ${\mathrm{\ensuremath{\Delta}}}^{*}$ spectrum. We employ the available pole extractions from partial wave analysis of meson scattering and photoproduction data. We assess the importance of the imaginary part of the poles (widths) to obtain a consistent determination of the parameters of the Regge trajectory. We compare the several pole extractions and show how Regge phenomenology can be used to gain insight into the internal structure of baryons. We find that the majority of the states in the parent Regge trajectories are compatible with a mostly compact three-quark state picture.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2019-02-13 | Physical Review D |