6533b825fe1ef96bd1282ad5
RESEARCH PRODUCT
New anomalous trajectory in Regge theory
Nikolai KochelevYongseok OhAndrey V. VinnikovVicente VentoDong-pil Minsubject
PhysicsNuclear and High Energy PhysicsParticle physicsMesonNuclear TheoryScatteringHigh Energy Physics::PhenomenologyFOS: Physical sciencesFísicaEnergy–momentum relationQuantum numberHigh Energy Physics - ExperimentNuclear Theory (nucl-th)Regge theoryHigh Energy Physics - Experiment (hep-ex)PomeronHigh Energy Physics - PhenomenologyHigh Energy Physics - Phenomenology (hep-ph)BibliographyHigh Energy Physics::ExperimentPseudovectordescription
We show that a new Regge trajectory with \alpha_{f_1} (0) \approx 1 and slope \alpha_{f_1}'(0) \approx 0 explains the features of hadron-hadron scattering and photoproduction of the rho and phi mesons at large energy and momentum transfer. This trajectory with quantum numbers P = C = +1 and odd signature can be considered as a natural partner of the Pomeron which has even signature. The odd signature of the new exchange leads to contributions to the spin-dependent cross sections, which do not vanish at large energy. The links between the anomalous properties of this trajectory, the axial anomaly and the flavor singlet axial vector f_1 (1285) meson are discussed.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1999-11-25 |