Nucleon propagation through nuclear matter in chiral effective field theory

Details Nucleon propagation through nuclear matter in chiral effective field theory Nucleon propagation through nuclear matter in chiral effective field theory

2007-03-14

arxiv.org/abs/hep-ph/0703147v1

Eur.Phys.J.C50:889-896,2007

Physics

High Energy Physics

High Energy Physics - Phenomenology

11 pages including 4 figures. To appear in Eur. J. Phys. C

Scientific paper

10.1140/epjc/s10052-007-0272-0

We treat the propagation of nucleon in nuclear matter by evaluating the ensemble average of the two-point function of nucleon currents in the framework of the chiral effective field theory. We first derive the effective parameters of nucleon to one loop. The resulting formula for the effective mass was known previously and gives an absurd value at normal nuclear density. We then modify it following Weinberg's method for the two-nucleon system in the effective theory. Our results for the effective mass and the width of nucleon are compared with those in the literature.

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