Hyperon-nucleon interaction in chiral effective field theory

Johann Haidenbauer (FZ Jülich)

The Julich-Bonn-Munich Group aims at an extensive study of the baryon-baryon interaction involving strange baryons ($\Lambda$, $\Sigma$, $\Xi$) within SU(3) chiral effective field theory. An overview of recent results and of work in progress will be provided. Among the issues covered are:

• Extension of the $\Lambda$-$N$ - $\Sigma$-$N$ interaction to next-to-next-to-leading order in the chiral expansion
• Application of that interacton to studies of $\Lambda$-hypernuclei up to $A=5$
• Exploration of possible effects from $\Lambda$-$N$-$N$ three-body forces
• Results for the $\Xi$-$N$ interaction at next-to-leading order and implication of that interaction for $\Xi$-hypernuclei

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The colloquium will be streamed but not recorded.
Zoom link: https://uni-frankfurt.zoom.us/j/2848286010?pwd=VmtCY1RCc1hpVStKd0RibFBpc1IzZz09
Meeting ID: 284 828 6010
Password: 068695