Pantheon SEMPARIS Le serveur des séminaires parisiens Paris

Statut Confirmé
Série IPN-THEO
Domaines nucl-th
Date Jeudi 22 Juin 2017
Heure 11:30
Institut IPN
Salle IPNO, Salle des Conseils, Bat 100M RdC
Nom de l'orateur Zuker
Prenom de l'orateur Andrès
Addresse email de l'orateur
Institution de l'orateur Université de Strasbourg, IPHC, Università degli Studi di Padova
Titre Beyond Shell Model: Radii, halo orbits and shell structure
Résumé The Shell Model is about solving a Schrödinger equation with suitable interactions. So far, nuclear radii, binding energies and basic shell structure cannot be explained by the Shell Model. To "go beyond" means addressing the problem phenomenologically in ways to make it possible to discover basic mechanisms at play. Our starting point is the observation that nuclear radii and masses exhibit strong shell effects associated with "magic numbers" 6,14,28,50,82 and 126. Their origin is an open problem, difficult to pinpoint in the case of masses but subsumed by a single phenomenological term that brings down root mean square deviations with observed radii to 0.01 fermi. The origin of this term is unambiguously traced to the existence of huge "halo" orbits...
Numéro de preprint arXiv
Commentaires $$
Fichiers attachés
  • 2017_06_22_A_Zuker.pdf (205399 bytes) OPEN

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