SEMINÁRIO DO GRUPO DE HÁDRONS E FÍSICA TEÓRICA - FEP
“Dipole-dipole dispersion interactions between neutrons”
Prof. Renato Higa, IFUSP
28 de março, terça-feira, 17 h.
Local: Edifício Principal, Ala 2, Sala 335, IFUSP
Abstract:
Beyond charge and permanent magnetic moments, polarizabilities provide theresponse of the internal structure of composite objects, like atoms, nuclei, andhadrons, to an applied electromagnetic field. For two neutrons, BIFUSP 2. dipolepolarizabilities also lead to a long-range Casimir-Polder dispersiveinteraction. In this work we present results of the dipole-dipole long-rangeinteractions between two neutrons, a neutron and a conducting wall, and a neutron between two walls. As input, we use dynamical electric andmagnetic dipole polarizabilities fitted to chiral EFT results up to the pionproduction threshold and at the onset of the Delta resonance.
