Low-energy pions in nuclear matter and ππ photoproduction within a BUU transport model
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چکیده
In the present paper we investigate a method to describe lowenergy scattering events of pions and nuclei within a Boltzmann-UehlingUhlenbeck (BUU) transport model. Implementing different scenarios of medium modifications, we studied the mean free path of pions in nuclear matter at low momenta and compared pion absorption simulations to data. Pursuing these studies we have shown, that also in a regime of a long pionic wave length the semi-classical BUU model still generates reasonable results. We present results on π-induced events in the regime of 10MeV ≤ T π kin ≤ 130MeV and photo-induced ππ production at incident beam energies of 400− 460MeV.
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تاریخ انتشار 2005