New developments for a chiral effective theory of nuclear matter

Journal Article · Mon May 23 00:00:00 EDT 2011 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3574940· OSTI ID:21516910

Oller, J A ^[1]; Lacour, A ^[2]; Meissner, U -G ^[2]

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1. Departamento de Fisica, Universidad de Murcia, E-30071 Murcia (Spain)
2. Helmholtz-Institut fuer Strahlen- und Kernphysik (Theorie) and Bethe Center for Theoretical Physics, Universitaet Bonn, D-53115 Bonn (Germany)

We report on the recent developments of a new effective field theory for nuclear matter. 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 and provide sensible results up-to next-to-leading order for the ground state energy per particle of nuclear matter, in-medium chiral quark condensate and the self-energy and axial-vector couplings of the pion.

• OSTI ID: 21516910
• Journal Information: AIP Conference Proceedings, Vol. 1343, Issue 1; Conference: QCHS 9: 9. international conference on quark confinement and the hadron spectrum, Madrid (Spain), 30 Aug - 3 Sep 2010; Other Information: DOI: 10.1063/1.3574940; (c) 2011 American Institute of Physics; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
CHIRALITY
COUPLING
FIELD THEORIES
NUCLEAR MATTER
NUCLEON-NUCLEON INTERACTIONS
NUCLEONS
PARTICLES
PERTURBATION THEORY
PIONS
QUANTUM FIELD THEORY
QUARK CONDENSATION
SELF-ENERGY
BARYON-BARYON INTERACTIONS
BARYONS
BOSONS
ELEMENTARY PARTICLES
ENERGY
FERMIONS
HADRON-HADRON INTERACTIONS
HADRONS
INTERACTIONS
MATTER
MESONS
PARTICLE INTERACTIONS
PARTICLE PROPERTIES
PSEUDOSCALAR MESONS