Introduction to Effective Field Theories in QCD
| Autor: | D. M. Cardamone, L. J. Abu‐Raddad, U. van Kolck |
|---|---|
| Rok vydání: | 2002 |
| Předmět: |
Quantum chromodynamics
Physics Particle physics Chiral perturbation theory Nuclear Theory High Energy Physics::Lattice High Energy Physics::Phenomenology FOS: Physical sciences Nuclear matter Nuclear Theory (nucl-th) Strange matter Quark–gluon plasma Effective field theory High Energy Physics::Experiment Perturbation theory (quantum mechanics) Quantum field theory |
| Zdroj: | AIP Conference Proceedings. |
| ISSN: | 0094-243X |
| Popis: | We present a simple introduction to the techniques of effective field theory (EFT) and their application to QCD. For problems with more than one energy scale, the EFT approach is a useful alternative to more traditional model-building strategies. The most relevant such problem for this discussion is that of making contact between QCD and the hadronic phase of matter. As a simple example, an EFT calculation of the bound states of hydrogen within QED is sketched. A more significant demonstration of the power of EFTs, the construction of the chiral Lagrangian and chiral perturbation theory, is also included. The results provide us with the road map to a complete QCD-based theory of nuclear matter at nonzero temperatures and densities, a vital component to a quantitative understanding of the phase transition from hadron gas to quark-gluon plasma. Comment: Conference proceedings for the Pan-American Advanced Studies Institute on New States of Matter in Hadronic Interactions, January 7-18, 2002, Campos do Jordao, Brazil |
| Databáze: | OpenAIRE |
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