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arXiv · 1701.06007

Study on the reaction of $\gamma p \to f_1(1285) p$ in Regge-effective Lagrangian approach

Yan-Yan Wang·Li-Juan Liu·En Wang·De-Min Li
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Abstract

The production of the $f_1(1285)$ resonance in the reaction of $\gamma p \rightarrow f_1(1285) p$ is investigated within a Regge-effective Lagrangian approach. Besides the contributions of the $t$-channel $\rho$ and $\omega$ trajectories exchanges, we also take into account the contributions of $s/u$-channel $N(2300)$ terms, $s/u$-channel nucleon terms, and the contact term. By fitting to the CLAS data, we find that the $s$-channel $N(2300)$ term plays an important role in this reaction. We predict the total cross section for this reaction, and find a clear bump structure around $W=2.3$ GeV, which is associated with the $N(2300)$ state. The reaction of $\gamma p \to f_1(1285) p$ could be useful to further study of the $N(2300)$ experimentally.

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Yan-Yan Wang, Li-Juan Liu, En Wang, De-Min Li. 2017-01-21. Study on the reaction of $\gamma p \to f_1(1285) p$ in Regge-effective Lagrangian approach. https://doi.org/10.1103/physrevd.95.096015

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