V Baru, C Hanhart, F Myhrer - International Journal of Modern …, 2014 - World Scientific
In this review, we present the recent advances for calculations of the reactions NN→ NNπ using chiral effective field theory χEFT. Discussed are the next-to-next-to leading order …
The strong-interaction shift ε 1 s π D and broadening Γ 1 s π D in pionic deuterium have been determined in a high statistics study of the π D (3 p-1 s) X-ray transition using a high …
M Hennebach, DF Anagnostopoulos, A Dax… - The European Physical …, 2014 - Springer
The hadronic shift in pionic hydrogen has been redetermined to be ε 1 s= 7.086±0.007 (stat)±0.006 (sys) eV by X-ray spectroscopy of ground-state transitions applying various …
J Golak, V Urbanevych, R Skibiński, H Witała… - Physical Review C, 2022 - APS
The π−+ H 2→ n+ n, π−+ H 3→ n+ n+ n, π−+ He 3→ n+ d, and π−+ He 3→ p+ n+ n capture reactions from the lowest 1 S atomic orbitals are studied under full inclusion of final state …
DS Covita, DF Anagnostopoulos, H Fuhrmann… - The European Physical …, 2018 - Springer
The K β transition in muonic hydrogen was measured with a high-resolution crystal spectrometer. The spectrum is shown to be sensitive to the ground-state hyperfine splitting …
The quantum-mechanical calculations of the differential and integrated cross sections of the elastic scattering, Stark transitions, and Coulomb deexcitation at collisions of excited μ− p …
Pion-nucleon scattering lengths are directly related to the ground-state level shift and broadening in pionic hydrogen as well as to the pionic deuterium level shift. The level …
The ground-state level shifts and broadenings of the hydrogen isotopes caused by the strong interaction have been redetermined by using a high-resolution crystal spectrometer …
V Baru, E Epelbaum, AA Filin, C Hanhart… - The European Physical …, 2016 - Springer
The reaction NN→NNπ offers a good testing ground for chiral effective field theory at intermediate energies. It challenges our understanding of the first inelastic channel in …