The $\gamma p\to n{a}_2^{+}(1320)\to n{\rho }^0{\pi }^{+}$ reactions within an effective Lagrangian approach

Abstract

We investigate the $a_2(1320)$ meson photon production in the $\gamma p\to n{a}_2^{+}(1320)$ and $\gamma p\to n{\rho }^0{\pi }^{+}$ reactions within the effective Lagrangian method. For $\gamma p\to n{a}_2^{+}(1320)$ reaction, by considering the contributions only from the $t-$channel ${\pi }^{+}$ exchange, we get a fairly good description of the current experimental total cross section data. We also studied the $\gamma p\to n{\rho }^0{\pi }^{+}$ reaction, which mainly contribute to the $\gamma p\to n{\pi }^{+}{\pi }^{+}{\pi }^{-}$ reaction. The latter reaction has measured by the CLAS Collaboration. The total cross sections, invariant mass distribution, and the Dalitz Plot of $\gamma p\to n{\rho }^0{\pi }^{+}$ reaction are shown, which can be tested by future experiments.

5 pages, 6 figures

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Cited by in corpus (7)

• Photoproduction of the $f_1(1285)$ Meson
• Deciphering the light vector meson contribution to the cross sections of $e^{+}{e}^{-}$ annihilations into the open-strange channels through a combined analysis
• Photoproduction of the $f_2^{\prime }(1525)$ and $K_2^{\ast }(1430)$
• Study on the reaction of $\gamma p\to f_1(1285)p$ in Regge-effective Lagrangian approach
• Electromagnetic form factors of ${\Sigma }^{+}$ and ${\Sigma }^{-}$ in the vector meson dominance model
• Study of $a_1(1260)$ in the $\gamma p\to {\pi }^{+}{\pi }^{+}{\pi }^{-}n$ reaction
• Analysis of the data for $\gamma p\to f_1(1285)p$ photoproduction