Statut | Annulé |
Série | STR-LPT-ENS-HE |
Domaines | hep-th |
Date | Mardi 30 Octobre 2018 |
Heure | 11:30 |
Institut | LPTENS |
Salle | LPTENS library |
Nom de l'orateur | Penedones |
Prenom de l'orateur | Joao |
Addresse email de l'orateur | |
Institution de l'orateur | EPFL |
Titre | [CANCELED] Bootstrapping QCD: the pion lake |
Résumé | We consider the S-matrix bootstrap of four dimensional scattering amplitudes with O(3) symmetry and no bound-states. We explore the allowed space of scattering lengths which parametrize the interaction strength at threshold of the various scattering channels. Next we consider an application of this formalism to pion physics. A signature of pions is that they are derivatively coupled leading to (chiral) zeros in their scattering amplitudes. In this work we explore the multi-dimensional space of chiral zeros positions, scattering length values and resonance mass values. Interestingly, we encounter lakes, peninsulas and kinks depending on which sections of this intricate multi-dimensional space we consider. We discuss the remarkable location where QCD seems to lie in these plots, based on various experimental and theoretical expectations. |
Numéro de preprint arXiv | |
Commentaires | |
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