SUBJECT
Strong interaction from quarks to atomic nuclei
lecture
master
3
Semester 2
Spring semester
The interactions of nucleons at low energies can be successfully interpreted with momentum-dependent phenomenological potentials, also potential models based on meson exchange and also in the framework of quantum field theory. These theoretical approaches and their relation to the experimentally available informations are reviewed. The change of their accuracy is assessed when the energy of interaction is inceased and resonances do appear. Mean field approximations are introduced and discussed in detail for the nuclear matter and hadronic matter.
The appearance of the quark degrees of freedom is investigated in high energy nucleon-nucleon interactions. Different field theoretical models of quark confinement are introduced and applied.
The lowest order calculation of spin independent and spin dependent quark-quark interactions is described. A potential model of heavy quark bound states is compared to the heavy meson spectrosopy.
The concept of quark matter and strange matter is also introduced together with the simplest experimental signatures for their existence. Effective models of the thermal and high density quark-hadron plasma are presented.
As a complex application models of the structure of compact stars is modelled, the mass-radius relation is derived.
required readings:
- D. Perkins: Introduction to high energy physics, Cambridge University Press, 4th edition, 2000
- D. Perkins: Particle Astrophysics, Oxford University Press, 2003
- J.D. Walecka: Theoretical Nuclear and Subnuclear Physics, World Scientific, 2004
recommended readings:
- A. Jakovac, A. Patkos: Resummation and Renormalisation of Effective Models of Particle Physics, Lecture Notes in Physics, Springer (in press)