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arXiv · hep-ph/9911480

New anomalous trajectory in Regge theory

Nikolai I. Kochelev·Dong-Pil Min·Yongseok Oh·Vicente Vento·Andrey V. Vinnikov
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Abstract

We show that a new Regge trajectory with α_{f_1} (0) \approx 1 and slope α_{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.

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Nikolai I. Kochelev, Dong-Pil Min, Yongseok Oh, Vicente Vento, Andrey V. Vinnikov. 2000-01-17. New anomalous trajectory in Regge theory. https://doi.org/10.1103/physrevd.61.094008

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