Chiral NN interactions in nuclear matter

Krippa, Boris
March 2000
AIP Conference Proceedings;2000, Vol. 508 Issue 1, p94
Academic Journal
We consider an effective field theory of NN system in nuclear medium. The shallow bound states, which complicate the effective field theory analysis and lead to the large scattering length in the vacuum case do not exist in matter. We show that the next-to-leading order terms in the chiral expansion of the effective NN potential can be interpreted as corrections so that the expansion is systematic. It is pointed out however that it is still useful to treat the problem nonperturbatively since it may allow for the consideration of the nuclear systems with the density smaller that the normal nuclear matter one. The potential energy per particle is calculated. The possible directions in constructing the chiral theory of nuclear matter are outlined. © 2000 American Institute of Physics.


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