Chiral effective field theory for nuclear matter

被引：0

作者：

Lacour, A. ^{[1
]}

Meissner, U. -G. ^{[1
,2
]}

Oller, J. A. ^{[3
]}

机构：

[1] Univ Bonn, Helmholtz Inst Strahlen & Kernphys Theorie, D-53115 Bonn, Germany

[2] Forschungszentrum Julich, Ctr Hardron Phys, Inst Kerrphys, Inst Adv Stimulat, D-52425 Julich, Germany

[3] Univ Murcia, Dept Fis, E-30071 Murcia, Spain

来源：

INTERNATIONAL WORKSHOP ON CHIRAL SYMMETRY IN HADRONS AND NUCLEI | 2010年 / 1322卷

关键词：

Chiral effective field theory; Multi-nucleon interactions; Nuclear matter; Non-perturbative methods; In-medium power counting; PERTURBATION-THEORY; LAGRANGIANS; FORCES; DYNAMICS;

D O I：

暂无

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

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.

引用

页码：125 / +

页数：2

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