https://doi.org/10.1051/epjconf/202225806002
NN interaction from chiral effective field theory and its application to neutron-antineutron oscillations
1 Institute for Advanced Simulation, Institut für Kernphysik and Jülich Center for Hadron Physics, Forschungszentrum Jülich, D-52425 Jülich, Germany
2 Helmholtz-Institut für Strahlen- und Kernphysik and Bethe Center for Theoretical Physics, Universität Bonn, D-53115 Bonn, Germany
* e-mail: j.haidenbauer@fz-juelich.de
** e-mail: meissner@hiskp.uni-bonn.de
Published online: 11 January 2022
An N¯N potential is introduced which is derived within chiral effective field theory and fitted to up-to-date N¯N phase shifts and inelasticities, provided by a proper phase-shift analysis of available p¯p scattering data. As an application of this interaction neutron-antineutron oscillations in the deuteron are considered. In particular, results for the deuteron lifetime are presented, evaluated in terms of the free-space n−n¯ oscillation time, utilizing that N¯N potential together with an NN interaction likewise derived within chiral effective field theory.
© The Authors, published by EDP Sciences, 2022
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