Low-energy ππ photoproduction off nuclei
نویسندگان
چکیده
منابع مشابه
Low energy kaon photoproduction from nuclei ∗
We study K +-meson production in γA interaction at energies below the reaction threshold in free space. The Thomas-Fermi and spectral function approaches are used for the calculations of the production process. It is found that the measurement of the differential spectra may allow to reconstruct the production mechanism and to investigate the dispersion relations entering the production vertex....
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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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High energy multiparticle photoproduction off nuclear targets is studied. The photon is assumed to interact in direct scattering processes or as a resolved qq̄-state according to the Generalized Vector Dominance Model. In the description of resolved interactions multiple soft and hard processes in each qq̄–nucleon interaction are taken into consideration. The model, formulated within the framewor...
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متن کاملCoherent Photoproduction from Nuclei
We argue that study of the cross section of coherent photo(electro) production of vector mesons off nuclear targets provides an effective method to probe the leading twist hard QCD regimes of color transparency and perturbative color opacity as well as the onset of black body limit (BBL) in the soft and hard QCD interactions. In the case of intermediate energies we use the Generalized Vector Do...
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ژورنال
عنوان ژورنال: Physics Letters B
سال: 2004
ISSN: 0370-2693
DOI: 10.1016/j.physletb.2004.05.054