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Ab initio alpha-alpha scattering
Serdar Elhatisari, Dean Lee, Gautam Rupak +5
Processes involving alpha particles and alpha-like nuclei comprise a major part of stellar nucleosynthesis and hypothesized mechanisms for thermonuclear supernovae. In an effort to…
Few-nucleon systems with state-of-the-art chiral nucleon-nucleon forces
S. Binder, A. Calci, E. Epelbaum +17
We apply improved nucleon-nucleon potentials up to fifth order in chiral effective field theory, along with a new analysis of the theoretical truncation errors, to study nucleon-de…
Scattering cluster wave functions on the lattice using the adiabatic projection method
Alexander Rokash, Michelle Pine, Serdar Elhatisari +3
The adiabatic projection method is a general framework for studying scattering and reactions on the lattice. It provides a low-energy effective theory for clusters which becomes ex…
Low-energy theorems for nucleon-nucleon scattering at unphysical pion masses
V. Baru, E. Epelbaum, A. A. Filin +1
The longest-range part of the nuclear force due to the one-pion exchange governs the energy dependence of the scattering amplitude in the near-threshold region and imposes correlat…
Efficient calculation of chiral three-nucleon forces up to N3LO for ab initio studies
K. Hebeler, H. Krebs, E. Epelbaum +2
We present a novel framework to decompose three-nucleon forces in a momentum space partial-wave basis. The new approach is computationally much more efficient than previous methods…
Nuclear Lattice Simulations using Symmetry-Sign Extrapolation
Timo A. Lähde, Thomas Luu, Dean Lee +4
Projection Monte Carlo calculations of lattice Chiral Effective Field Theory suffer from sign oscillations to a varying degree dependent on the number of protons and neutrons. Henc…