8–10 Mar 2021
Yukawa Institute for Theoretical Physics, Kyoto University
Asia/Tokyo timezone

Lattice QCD analysis of hidden-charm pentaquarks

9 Mar 2021, 20:30
30m
Panasonic hall (Yukawa Institute for Theoretical Physics, Kyoto University)

Panasonic hall

Yukawa Institute for Theoretical Physics, Kyoto University

Speaker

Takuya Sugiura (RIKEN iTHEMS)

Description

Recently, LHCb collaboration has reported three resonance states in the J/\psi p invariant mass spectrum from a weak decay of \Lambda_b. The states, P_c(4312), P_c(4440) and P_c(4457), are expected to be pentaquarks with flavor structure of uudc\bar{c}. In this work, we analyze the J/\psi p scattering by lattice QCD at m_\pi=700, 570, 410 MeV. We determine the spin-dependent J/\psi p potentials, as well as the coupled-channel potentials of open-charm meson-baryon systems through the HAL QCD method.

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