Nucleon and hadron structure changes in the nuclear medium and impact on observables
Jun, 2005
143 pages
Published in:
- Prog.Part.Nucl.Phys. 58 (2007) 1-167
e-Print:
- hep-ph/0506314 [hep-ph]
Report number:
- JLAB-THY-05-326
Citations per year
Abstract:
We review the effect of hadron structure changes in a nuclear medium using the quark-meson coupling (QMC) model, which is based on a mean field description of non-overlapping nucleon (or baryon) bags bound by the self-consistent exchange of scalar and vector mesons. This approach leads to simple scaling relations for the changes of hadron masses in a nuclear medium. It can also be extended to describe finite nuclei, as well as the properties of hypernuclei and meson-nucleus deeply bound states. It is of great interest that the model predicts a variation of the nucleon form factors in nuclear matter. We also study the empirically observed, Bloom-Gilman (quark-hadron) duality. Other applications of the model include subthreshold kaon production in heavy ion collisions, D and D-bar meson production in antiproton-nucleus collisions, and J/Psi suppression. In particular, the modification of the D and D-bar meson properties in nuclear medium can lead to a large J/Psi absorption cross section, which explains the observed J/Psi suppression in relativistic heavy ion collisions.- Quarks in nuclei
- Quark-meson coupling model
- Relativistic nuclear model
- Properties of finite nuclei
- A new scaling formula for hadron masses in matter
- Nucleon form factors
- Hypernuclei and exotic nuclei
- Meson-nucleus bound states
- Nuclear structure functions
- Hadron reactions in matter
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