Pantheon SEMPARIS Le serveur des séminaires parisiens Paris

Statut Confirmé
Série IPN-X
Domaines hep-ph
Date Lundi 16 Juillet 2018
Heure 14:30
Institut IPN
Salle Salle A015
Nom de l'orateur Ikeda
Prenom de l'orateur Yoichi
Addresse email de l'orateur
Institution de l'orateur RCNP, Osaka University
Titre Hadron interactions from lattice QCD - application to hadron resonances
Résumé I will present recent progresses of LQCD on hadronic interactions which play a crucial role to understand hadron resonances and the properties of atomic nuclei. So far, two theoretically equivalent methods, the L\"{u}scher's method and the HAL QCD method, to extract scattering observables have been proposed. First, I will discuss hadron interactions using so-called the ``plateau method'' in which the energy eigenvalues calculated from the temporal correlation of two hadrons are used to extract the scattering phase shifts by the L\"{u}scher's method. I will demonstrate how the plateau method suffer from a serious contamination of the mixing with different states. I then demonstrate how the HAL QCD method solves the issue. Finally, I proceed to discussions of coupled-channel hadron interactions on the lattice with the HAL QCD method, which are important to study the nature of hadron resonances.
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