25-29 September 2017
Salamanca, Spain
Europe/Zurich timezone

Coupled-channel Lambda_c N - Sigma_c N interaction from lattice QCD

26 Sep 2017, 17:30
20m
Aula 2.3

Aula 2.3

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Speaker

Mr Takaya Miyamoto (Yukawa Institute for Theoretical Physics, Kyoto University)

Description

We study the $\Lambda_c N - \Sigma_c N$ system on the basis of the coupled-channel HAL QCD method. The potentials are extracted from Nambu-Bethe-Salpeter wave functions on the lattice, which are faithful to S-matrix in QCD. One of the advantages of this approach is that it is possible to extract the potentials without any assumptions. I will present our results of the coupled-channel potentials in the $\Lambda_c N - \Sigma_c N$ in $J^P = 1^+$ system and scattering observables such as phase shifts and mixing angles. We observe that the coupling between the $\Lambda_c N$ and $\Sigma_c N$ channel is weak and the attraction in $\Sigma_c N$ channel is stronger than that in $\Lambda_c N$ channel.

Primary author

Mr Takaya Miyamoto (Yukawa Institute for Theoretical Physics, Kyoto University)

Presentation Materials