New anomalous trajectory in Regge theory
High Energy Physics - Phenomenology
2009-10-31 v2 High Energy Physics - Experiment
Nuclear Theory
Abstract
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.
Cite
@article{arxiv.hep-ph/9911480,
title = {New anomalous trajectory in Regge theory},
author = {Nikolai I. Kochelev and Dong-Pil Min and Yongseok Oh and Vicente Vento and Andrey V. Vinnikov},
journal= {arXiv preprint arXiv:hep-ph/9911480},
year = {2009}
}
Comments
20 pages, REVTeX, 8 figures (9 eps files), version to appear in Phys. Rev. D