Antinucleon-nucleon interaction from chiral effective field theory and its application to neutron-antineutron oscillations

An $\bar N$N¯N potential is reviewed which has been derived within chiral effective field theory by the Jülich-Bonn group. By construction it reproduces $\bar N$N¯N phase shifts and inelasticities, provided by an elaborate phase-shift analysis of available $\bar p$p¯p scattering data. This interacti...

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Main Authors: Haidenbauer Johann, Meißner Ulf-G.
Format: Article
Language:English
Published: EDP Sciences 2022-01-01
Series:EPJ Web of Conferences
Online Access:https://www.epj-conferences.org/articles/epjconf/pdf/2022/06/epjconf_exa2021_01017.pdf
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author Haidenbauer Johann
Meißner Ulf-G.
author_facet Haidenbauer Johann
Meißner Ulf-G.
author_sort Haidenbauer Johann
collection DOAJ
description An $\bar N$N¯N potential is reviewed which has been derived within chiral effective field theory by the Jülich-Bonn group. By construction it reproduces $\bar N$N¯N phase shifts and inelasticities, provided by an elaborate phase-shift analysis of available $\bar p$p¯p scattering data. This interaction is then employed in a study of neutron-antineutron oscillations in the deuteron. In particular, the deuteron lifetime is considered, and results for it are presented in terms of the free-space n – $\bar n$n¯ oscillation time, based on that $\bar N$N¯N potential in combination with an NN interaction likewise derived within chiral effective field theory.
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spelling doaj.art-73a4c6a96e024cc6b65900f1a5055d852022-12-22T02:09:21ZengEDP SciencesEPJ Web of Conferences2100-014X2022-01-012620101710.1051/epjconf/202226201017epjconf_exa2021_01017Antinucleon-nucleon interaction from chiral effective field theory and its application to neutron-antineutron oscillationsHaidenbauer Johann0Meißner Ulf-G.1Institute for Advanced Simulation, Institut für Kernphysik and Jülich Center for Hadron Physics, Forschungszentrum JülichHelmholtz-Institut für Strahlen- und Kernphysik and Bethe Center for Theoretical Physics, Universität BonnAn $\bar N$N¯N potential is reviewed which has been derived within chiral effective field theory by the Jülich-Bonn group. By construction it reproduces $\bar N$N¯N phase shifts and inelasticities, provided by an elaborate phase-shift analysis of available $\bar p$p¯p scattering data. This interaction is then employed in a study of neutron-antineutron oscillations in the deuteron. In particular, the deuteron lifetime is considered, and results for it are presented in terms of the free-space n – $\bar n$n¯ oscillation time, based on that $\bar N$N¯N potential in combination with an NN interaction likewise derived within chiral effective field theory.https://www.epj-conferences.org/articles/epjconf/pdf/2022/06/epjconf_exa2021_01017.pdf
spellingShingle Haidenbauer Johann
Meißner Ulf-G.
Antinucleon-nucleon interaction from chiral effective field theory and its application to neutron-antineutron oscillations
EPJ Web of Conferences
title Antinucleon-nucleon interaction from chiral effective field theory and its application to neutron-antineutron oscillations
title_full Antinucleon-nucleon interaction from chiral effective field theory and its application to neutron-antineutron oscillations
title_fullStr Antinucleon-nucleon interaction from chiral effective field theory and its application to neutron-antineutron oscillations
title_full_unstemmed Antinucleon-nucleon interaction from chiral effective field theory and its application to neutron-antineutron oscillations
title_short Antinucleon-nucleon interaction from chiral effective field theory and its application to neutron-antineutron oscillations
title_sort antinucleon nucleon interaction from chiral effective field theory and its application to neutron antineutron oscillations
url https://www.epj-conferences.org/articles/epjconf/pdf/2022/06/epjconf_exa2021_01017.pdf
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