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Baryon chiral perturbation theory extended beyond the low-energy region
E. Epelbaum, J. Gegelia, Ulf-G. Meißner +1
We consider an extension of the one-nucleon sector of baryon chiral perturbation theory beyond the low-energy region. The applicability of this approach for higher energies is rest…
Complex-mass renormalization in hadronic EFT: applicability at two-loop order
D. Djukanovic, E. Epelbaum, J. Gegelia +2
We discuss the application of the complex-mass scheme to multi-loop diagrams in hadronic effective field theory by considering as an example a two-loop self-energy diagram. We show…
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…