https://doi.org/10.1051/epjconf/201817505010
Lattice QCD studies on baryon interactions in the strangeness -2 sector with physical quark masses
1
Center for Gravitational Physics, Yukawa Institute for Theoretical Physics, Kyoto University, Kyoto 606-8502, Japan
2
Theoretical Research Division, Nishina Center, RIKEN, Wako 351-0198, Japan
3
Center for Computational Sciences, University of Tsukuba, Tsukuba 305-8577, Japan
4
iTHEMS Program and iTHES Research Group, RIKEN, Wako 351-0198, Japan
5
Research Center for Nuclear Physics (RCNP), Osaka University, Osaka 567-0047, Japan
6
Nihon University, College of Bioresource Sciences, Kanagawa 252-0880, Japan
* Speaker, e-mail: kenjis@yukawa.kyoto-u.ac.jp
Published online: 26 March 2018
We investigate baryon-baryon (BB) interactions in the strangeness S = −2 sector via the coupled-channel HAL QCD method which enables us to extract the scattering observables from Nambu-Bethe-Salpeter (NBS) wave function on the lattice. The simulations are performed with (almost) physical quark masses (mπ = 146MeV) and a huge lattice volume of La = 8.1fm. We discuss the fate of H-dibaryon state through the ΛΛ and NΞ coupled-channel scatterings
© The Authors, published by EDP Sciences, 2018
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (http://creativecommons.org/licenses/by/4.0/).
