Chiral effective field theory for nuclear matter
Autor: | A. Lacour, U.-G. Meißner, J. A. Oller, Juan M. Nieves, Eulogio Oset, Manuel J. Vicente-Vacas |
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Rok vydání: | 2010 |
Předmět: | |
Zdroj: | AIP Conference Proceedings. |
ISSN: | 0094-243X |
Popis: | We report on the recent developments of a new effective field theory for nuclear matter [1,2,3]. We present first the nuclear matter chiral power counting that takes into account both short-- and long--range inter-nucleon interactions. It also identifies non-perturbative strings of diagrams, related to the iteration of nucleon-nucleon interactions, which have to be re-summed. The methods of unitary chiral perturbation theory has been shown to be a useful tool in order to perform those resummations. Results up to next-to-leading order for the ground state energy per particle of nuclear matter, the in-medium chiral quark condensate and pion self-energy are discussed. Comment: Plenary talk at Chiral10 WORKSHOP, 21-24 Jun 2010, Valencia, Spain |
Databáze: | OpenAIRE |
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