Speaker
Description
The Julich-Bonn-Munich Group aims at an extensive study of the baryon-baryon (BB) interaction involving strange baryons ($\Lambda$, $\Sigma$, $\Xi$) within SU(3) chiral effective field theory. An overview of achievements and new developments over the past few years will be provided. Among the issues covered are:
$\bullet$ Derivation of the leading charge-symmetry breaking (CSB) interaction in the $\Lambda N$ system and its application in a study of CSB effects in $A$=$4$ $\Lambda$-hypernuclei.
$\bullet$ Updated results for the $\Xi N$ interaction at NLO and implication of that interaction for $\Xi$-hypernuclei.
$\bullet$ Possible extension of the $\Lambda N$-$\Sigma N$ interaction to next-to-next-to-leading order.
$\bullet$ Constraints on the BB interaction from information on two-particle momentum correlation functions as measured in heavy ion collisions or in high-energy proton-proton collisions.
