We present our recent results of baryon interactions with strangeness S = -1 based on Nambu-Bethe-Salpeter (NBS) correlation functions calculated fromlattice QCD with almost physical quark masses corresponding to (mk,mk) ≈ (146, 525) MeV and large volume (La)4 ≈ (96a)4 ≈ (8.1 fm)4. In order to perform a comprehensive study of baryon interactions, a large number of NBS correlation functions from NN to ΞΞ are calculated simultaneously by using large scale computer resources. In this contribution, we focus on the strangeness S = -1 channels of the hyperon interactions by means of HAL QCD method. Four sets of three potentials (the 3S1 - 3 D1 central, 3S1 - 3 D1 tensor, and the 1S0 central potentials) are presented for the ∑ N - ∑ N (the isospin I = 3/2) diagonal, the Λ N - Λ N diagonal, the Λ N → ∑ N transition, and the ∑ N - ∑ N (I = 1/2) diagonal interactions. Scattering phase shifts for ∑ N (I = 3/2) system are presented.
|Journal||EPJ Web of Conferences|
|Publication status||Published - Mar 26 2018|
|Event||35th International Symposium on Lattice Field Theory, Lattice 2017 - Granada, Spain|
Duration: Jun 18 2017 → Jun 24 2017
All Science Journal Classification (ASJC) codes
- Physics and Astronomy(all)