Abstract
We construct nucleonic microscopic optical potentials by combining the Green’s function approach with the coupled-cluster method for (formula presented) and (formula presented). We work with the chiral nucleon-nucleon and three-nucleon interaction (formula presented) which reproduces the charge radii of (formula presented)Ca and (formula presented)Ca. The overall form of the neutron scattering cross section is reproduced for both nuclei, but the imaginary part of the calculated potential, which reflects the loss of flux in the elastic channel, is negligible. The latter points to many-body correlations that would appear beyond the coupled-cluster truncation level considered in this work. We show that, by artificially increasing the parameter (formula presented) in the Green’s function, practical results can be further improved.
| Original language | English |
|---|---|
| Title of host publication | Recent Progress in Few-Body Physics - Proceedings of the 22nd International Conference on Few-Body Problems in Physics, FB22 2018 |
| Editors | N.A. Orr, F.M. Marqués, M. Ploszajczak, J. Carbonell |
| Publisher | Springer |
| Pages | 183-190 |
| Number of pages | 8 |
| ISBN (Print) | 9783030323561 |
| DOIs | |
| State | Published - 2020 |
| Event | 22nd International Conference on Few-Body Problems in Physics, FB22 2018 - Caen, France Duration: Jul 9 2018 → Jul 13 2018 |
Publication series
| Name | Springer Proceedings in Physics |
|---|---|
| Volume | 238 |
| ISSN (Print) | 0930-8989 |
| ISSN (Electronic) | 1867-4941 |
Conference
| Conference | 22nd International Conference on Few-Body Problems in Physics, FB22 2018 |
|---|---|
| Country/Territory | France |
| City | Caen |
| Period | 07/9/18 → 07/13/18 |
Funding
Acknowledgements We thank K. Hebeler for providing us with matrix elements in Jacobi coordinates for the NNN interaction at next-to-next-to-leading order. This work was supported by the National Science Foundation under Grant PHY-1403906, the Department of Energy under Contract No. DE-FG52-08NA28552, by the Office of Science, U.S. Department of Energy under Award Number DE-SC0013365 and by the Office of Nuclear Physics, U.S. Department of Energy, under Grants DE-SC0008499 (SciDAC-3 NUCLEI), DE-SC0018223 (SciDAC-4 NUCLEI), the Field Work Proposal ERKBP57 and ERKBP72 at Oak Ridge National Laboratory (ORNL). An award of computer time was provided by the Institute for Cyber-Enabled Research at Michigan State University and part of this research used resources of the Oak Ridge Leadership Computing Facility located at ORNL, which is supported by the Office of Science of the Department of Energy under Contract No. DE-AC05-00OR22725. We thank K. Hebeler for providing us with matrix elements in Jacobi coordinates for the NNN interaction at next-to-next-to-leading order. This work was supported by the National Science Foundation under Grant PHY-1403906, the Department of Energy under Contract No. DE-FG52-08NA28552, by the Office of Science, U.S. Department of Energy under Award Number DE-SC0013365 and by the Office of Nuclear Physics, U.S. Department of Energy, under Grants DE-SC0008499 (SciDAC-3 NUCLEI), DE-SC0018223 (SciDAC-4 NUCLEI), the Field Work Proposal ERKBP57 and ERKBP72 at Oak Ridge National Laboratory (ORNL). An award of computer time was provided by the Institute for Cyber-Enabled Research at Michigan State University and part of this research used resources of the Oak Ridge Leadership Computing Facility located at ORNL, which is supported by the Office of Science of the Department of Energy under Contract No. DE-AC05-00OR22725.