- th / 0 60 30 03 v 2 1 S ep 2 00 6 Low - energy pions in nuclear matter and ππ photoproduction within a BUU transport model
نویسندگان
چکیده
A description of low-energy scattering of pions and nuclei within a BUU transport model is presented. Implementing different scenarios of medium modifications, the mean free path of pions in nuclear matter at low momenta and pion absorption reactions on nuclei have been studied and compared to data and to results obtained via quantum mechanical scattering theory. We show that even in a regime of a long pionic wave length the semi-classical transport model is still a reliable framework for pion kinetic energies greater than ≈ 20−30 MeV. Results are presented on π-absorption cross sections in the regime of 10 MeV ≤ T kin ≤ 130 MeV and on photon-induced ππ production at incident beam energies of 400 − 500 MeV.
منابع مشابه
Low-energy pions in nuclear matter and ππ photoproduction within a BUU transport model
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 ...
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