https://doi.org/10.1140/epja/i2002-10269-3
Quark mass dependence of the nuclear forces
1
Institut für Theoretische Physik II, Ruhr-Universität Bochum, D-44870, Bochum, Germany
2
Institut für Theoretische Physik, Karl-Franzens-Universität Graz, A-8010, Graz, Austria
3
Institut für Kernphysik (Theorie), Forschungszentrum Jülich, D-52425, Jülich, Germany
* e-mail: Evgeni.Epelbaum@tp2.ruhr-uni-bochum.de
We investigate the behavior of the nuclear force as a function of the light-quark masses m
q
in the framework of chiral effective field theory at next-to-leading order. The unknown m
q
-dependent short-range contribution is estimated by means of dimensional analysis. We calculate various observables for different values of m
q
. We found no new bound states and a larger deuteron binding energy, 
MeV, in the chiral limit.
© Società Italiana di Fisica and Springer-Verlag, 2003
