The 34th International Symposium on Lattice Field Theory (Lattice 2016)

Lambda-Nucleon and Sigma-Nucleon interactions from lattice QCD with physical masses

29 Jul 2016, 15:00

20m

Building B2a Room 2065 (Highfield Campus, University of Southampton)

Talk Hadron Spectroscopy and Interactions Hadron Spectroscopy and Interactions

Speaker

Dr Hidekatsu Nemura (Center for Computational Sciences, University of Tsukuba)

Description

We present our recent study on baryon-baryon (BB) interactions from lattice QCD with almost physical quark masses corresponding to $(m_{\pi },m_K)\approx (146,525)$ MeV and large volume $(La{)}^4=(96a{)}^4\approx$ (8.2 fm)${}^4$. In order to make better use of large scale computer resources, a large number of BB interactions from NN to $\mathrm{\Xi }\mathrm{\Xi }$ are calculated simultaneously. In this contribution, we focus on the strangeness $S=-1$ channels[1] of the hyperon interactions by means of HAL QCD method. More recent results will be presented which include $\mathrm{\Lambda }$N$-\mathrm{\Sigma }$N coupled-channel potential comprising the tensor force as well as increasing the Monte Carlo samples than shown in the past[1]. References: [1] H. Nemura, et al., arXiv:1604.08346 [hep-lat]. [enter link description here][1] [1]: https://arxiv.org/abs/1604.08346

Presentation materials

Slides

LAT2016_160729_nemuras.pdf