A theoretical approach to the (pion^{-}, gamma gamma) reaction in nuclei

A. Gil; E. Oset

doi:10.1016/0370-2693(95)00009-a

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A theoretical approach to the (pion^{-}, gamma gamma) reaction in nuclei

A. Gil·E. Oset

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Abstract

We have studied the pion^{-} capture in nuclei leading to two photons, using improved many body methods which have been tested with success in one photon pion^{-} radiative capture, muon^{-} capture and neutrino scattering. The qualitative features of the experimental data are reproduced but there are still some disagreement at small relative photon angles. The reaction is a potential source of information on details of the gamma-gamma-pion-pion vertex where chiral corrections can be relevant. New and more precise experiments are planned which make calculations like the present one relevant and opportune. ---------------------------------------------------------

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A. Gil, E. Oset. 1994-10-19. A theoretical approach to the (pion^{-}, gamma gamma) reaction in nuclei. https://doi.org/10.1016/0370-2693(95)00009-a

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