This title appears in the Scientific Report :
2020
Please use the identifier:
http://dx.doi.org/10.1140/epja/s10050-020-00102-2 in citations.
Please use the identifier: http://hdl.handle.net/2128/26773 in citations.
Towards high-order calculations of three-nucleon scattering in chiral effective field theory
Towards high-order calculations of three-nucleon scattering in chiral effective field theory
We discuss the current status of chiral effective field theory in the three-nucleon sector and present selected results for nucleon–deuteron scattering observables based on semilocal momentum-space-regularized chiral two-nucleon potentials together with consistently regularized three-nucleon forces...
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Personal Name(s): | Epelbaum, E. (Corresponding author) |
---|---|
Golak, J. / Hebeler, K. / Kamada, H. / Krebs, H. / Meißner, U.-G. / Nogga, Andreas / Reinert, P. / Skibiński, R. / Topolnicki, K. / Volkotrub, Yu. / Witała, H. | |
Contributing Institute: |
Theorie der Starken Wechselwirkung; IAS-4 JARA - HPC; JARA-HPC Theorie der starken Wechselwirkung; IKP-3 |
Published in: | The European physical journal / A, 56 (2020) 3, S. 92 |
Imprint: |
Heidelberg
Springer
2020
|
DOI: |
10.1140/epja/s10050-020-00102-2 |
Document Type: |
Journal Article |
Research Program: |
Chiral dynamics in Few-Baryon Systems Nuclear Lattice Simulations TRR 110: Symmetrien und Strukturbildung in der Quantenchromodynamik Computational Science and Mathematical Methods |
Link: |
OpenAccess OpenAccess |
Publikationsportal JuSER |
Please use the identifier: http://hdl.handle.net/2128/26773 in citations.
We discuss the current status of chiral effective field theory in the three-nucleon sector and present selected results for nucleon–deuteron scattering observables based on semilocal momentum-space-regularized chiral two-nucleon potentials together with consistently regularized three-nucleon forces up to third chiral order. Using a Bayesian model for estimating truncation errors, the obtained results are found to provide a good description of the experimental data. We confirm our earlier findings that a high-precision description of nucleon–deuteron scattering data below pion production threshold will require the theory to be pushed to fifth chiral order. This conclusion is substantiated by an exploratory study of selected short-range contributions to the three-nucleon force at that order, which, as expected, are found to have significant effects on polarization observables at intermediate and high energies. We also outline the challenges that will need to be addressed in order to push the chiral expansion of three-nucleon scattering observables to higher orders. |