Nucleonnucleon scattering from effective field theory
Abstract
We perform a nonperturbative calculation of the ^{1}S _{0}NN scattering amplitude, using an effective field theory (EFT) expansion. The expansion we advocate is a modification of what has been used previously; it is not a chiral expansion in powers of m_{π}. We use dimensional regularization throughout, and the overlineMS renormalization scheme; our final result depends only on physical observables. We show that the EFT expansion of the quantity p cot θ( p) converges at momenta much greater than the scale A that characterizes the derivative expansion of the EFT Lagrangian. Our conclusions are optimistic about the applicability of an EFT approach to the quantitative study of nuclear matter.
 Publication:

Nuclear Physics B
 Pub Date:
 February 1996
 DOI:
 10.1016/05503213(96)003574
 arXiv:
 arXiv:nuclth/9605002
 Bibcode:
 1996NuPhB.478..629K
 Keywords:

 Nuclear Theory;
 High Energy Physics  Phenomenology
 EPrint:
 Revised discussion of power counting in the EFT expansion. Tex file uses harvmac, epsf macros, 35 pages with 9 postscript figures