Contribution of the "hanged" diagrams into the reaction $np\to np{\pi }^{+}{\pi }^{-}$

Abstract

The contribution of "hanged" diagrams into the reaction $np\to np{\pi }^{+}{\pi }^{-}$ was considered. It was shown that taking into account of these diagrams permits to get better description of the effective mass spectrum of ${\pi }^{+}{\pi }^{-}$-combinations.

arXiv comment4 pages, 3 figures