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@ARTICLE{Le:897210,
      author       = {Le, Hoai and Haidenbauer, Johann and Meißner, Ulf-G. and
                      Nogga, Andreas},
      title        = {{S}-shell $\var{L}ambda \var{L}ambda$ hypernuclei based on
                      chiral interactions},
      journal      = {The European physical journal / A},
      volume       = {57},
      number       = {7},
      issn         = {1434-601X},
      address      = {Heidelberg},
      publisher    = {Springer},
      reportid     = {FZJ-2021-03676},
      pages        = {217},
      year         = {2021},
      abstract     = {We generalize the Jacobi no-core shell model (J-NCSM) to
                      study double-strangeness hypernuclei. All particle
                      conversions in the strangeness S=−1,−2 sectors are
                      explicitly taken into account. In two-body space, such
                      transitions may lead to the coupling between states of
                      identical particles and of non-identical ones. Therefore, a
                      careful consideration is required when determining the
                      combinatorial factors that connect the many-body potential
                      matrix elements and the free-space two-body potentials.
                      Using second quantization, we systematically derive the
                      combinatorial factors in question for S=0,−1,−2 sectors.
                      As a first application, we use the J-NCSM to investigate
                      ΛΛ s-shell hypernuclei based on hyperon-hyperon (YY)
                      potentials derived within chiral effective field theory at
                      leading order (LO) and up to next-to-leading order (NLO). We
                      find that the LO potential overbinds 6ΛΛHe while the
                      prediction of the NLO interaction is close to experiment.
                      Both interactions also yield a bound state for 5ΛΛHe. The
                      4ΛΛH system is predicted to be unbound.},
      cin          = {IAS-4 / IKP-3},
      ddc          = {530},
      cid          = {I:(DE-Juel1)IAS-4-20090406 / I:(DE-Juel1)IKP-3-20111104},
      pnm          = {5111 - Domain-Specific Simulation Data Life Cycle Labs
                      (SDLs) and Research Groups (POF4-511) / DFG project
                      196253076 - TRR 110: Symmetrien und Strukturbildung in der
                      Quantenchromodynamik (196253076)},
      pid          = {G:(DE-HGF)POF4-5111 / G:(GEPRIS)196253076},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000669211800001},
      doi          = {10.1140/epja/s10050-021-00522-8},
      url          = {https://juser.fz-juelich.de/record/897210},
}