Nuclear mesonic Cherenkov - like radiation from high-energy nucleons
199512 pages
Published in:
- Phys.Rev.C 52 (1995) 3332-3343
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Abstract: (APS)
Generalized Cherenkov-like effects based on four fundamental interactions are investigated and classified. Two general Cherenkov-like coherence conditions are found as two natural limiting extremes of the same spontaneous particle emission process in nuclear media. Nuclear pionic and nuclear kaonic Cherenkov-like radiation (NPICR and NKCR) produced by high-energy nucleons passing through a nuclear medium are systematically studied using a quantum theoretical approach. The pion and kaon refractive indices, the pion and kaon phase velocities as well as the NPICR and NKCR thresholds are calculated via the Foldy-Lax multiple scattering formalism having as input the experimental data for the elementary pion-nucleon and kaon-nucleon forward scattering amplitudes. The differential cross sections, the angle-energy correlations, as well as some other essential signatures of coherent pion and kaon production via Cherenkov mechanism with high-energy proton beams are presented. Compressed nuclear media with densities up to five times normal nuclear matter density are taken into account.- nucleon nucleus: interaction
- interaction: nucleon nucleus
- nuclear matter: density
- pi: emission
- emission: pi
- K: emission
- emission: K
- effect: Cherenkov
- kinematics: coherence
- multiple scattering
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