An alternative scheme for pionless EFT: neutron-deuteron scattering in the doublet S-wave

Autor:	Ebert, M., Hammer, H. -W., Rusetsky, A.
Rok vydání:	2023
Předmět:	Nuclear Theory High Energy Physics - Lattice
Druh dokumentu:	Working Paper
Popis:	Using the effective-range expansion for the two-body amplitudes may generate spurious sub-threshold poles outside of the convergence range of the expansion. In the infinite volume, the emergence of such poles leads to the breakdown of unitarity in the three-body amplitude. We discuss the extension of our alternative subtraction scheme for including effective range corrections in pionless effective field theory for spinless bosons to nucleons. In particular, we consider the neutron-deuteron system in the doublet S-wave channel explicitly. Comment: 9 pages, 2 figures, REVTeX
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2308.09545 Zobrazit plný text záznamu View this record from Arxiv