Femtoscopic study on the ΛΛ-NΞ interaction


  • Yuki Kamiya CAS Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences
  • Kenji Sasaki Division of Scientific Information and Public Policy, Center for Infectious Disease Education and Research (CiDER), Osaka University
  • Tokuro Fukui RIKEN Nishina Center
  • Tetsuo Hyodo Department of Physics, Tokyo Metropolitan University
  • Kenji Morita National Institutes for Quantum and Radiological Science and Technology, Rokkasho Fusion Institute
  • Kazuyuki Ogata Research Center for Nuclear Physics, Osaka University
  • Akira Ohnishi Yukawa Institute for Theoretical Physics, Kyoto University
  • Tetsuo Hatsuda RIKEN Interdisciplinary Theoretical and Mathematical Science Program (iTHEMS)




Hyperon interaction, exotic hadrons, hadron momentum correlation


The correlation functions of pΞ − and ΛΛ pairs from high-energy pp collisions are investigated in the coupled-channel formalism. The NΞΛΛ coupled-channel potentials obtained in the lattice QCD calculation at almost physical quark masses are employed. The pΞ − correlation function shows the large enhancement from the pure Coulomb case, while the ΛΛ correlation function shows the moderate enhancement from the pure quantum statistics case. This agreement indicates that both the NΞ and ΛΛ interactions are moderately attractive without having quasibound or bound state.


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How to Cite

Kamiya Y, Sasaki K, Fukui T, Hyodo T, Morita K, Ogata K, Ohnishi A, Hatsuda T. Femtoscopic study on the ΛΛ-NΞ interaction. Supl. Rev. Mex. Fis. [Internet]. 2022 Sep. 2 [cited 2024 May 20];3(3):0308124 1-5. Available from: https://rmf.smf.mx/ojs/index.php/rmf-s/article/view/6267