Physics – Nuclear Physics – Nuclear Theory
Scientific paper
2009-12-14
Physics
Nuclear Physics
Nuclear Theory
Invited talk at the 5th International Conference on Quarks and Nuclear Physics, to appear in Chinese Physics C
Scientific paper
Recently, we have derived a two--nucleon potential and consistent nuclear electromagnetic currents in chiral effective field theory with pions and nucleons as explicit degrees of freedom. The calculation of the currents has been carried out to include N$^3$LO corrections, consisting of two--pion exchange and contact contributions. The latter involve unknown low-energy constants (LECs), some of which have been fixed by fitting the $np$ S- and P-wave phase shifts up to 100 MeV lab energies. The remaining LECs entering the current operator are determined so as to reproduce the experimental deuteron and trinucleon magnetic moments, as well as the $np$ cross section. This electromagnetic current operator is utilized to study the $nd$ and $n^3$He radiative captures at thermal neutron energies. Here we discuss our results stressing on the important role played by the LECs in reproducing the experimental data.
Girlanda Luca
Pastore Sandro
Schiavilla Rocco
Viviani Michele
No associations
LandOfFree
Electromagnetic processes in a $χ$EFT framework does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Electromagnetic processes in a $χ$EFT framework, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electromagnetic processes in a $χ$EFT framework will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-304438