A linear increase with the volume of the topological susceptibility can signal spontaneous breaking of parity P and time inversion T, due to a nonzero vacuum expectation value of the topological charge Q. Such a breaking would produce a nonzero electric dipole moment of the neutron, dn. An upper limit to dn is derived from numerical simulations at increasing volumes.
An upper limit to the electric dipole moment of the neutron from lattice QCD
D'ELIA, MASSIMO;DI GIACOMO, ADRIANO
2007-01-01
Abstract
A linear increase with the volume of the topological susceptibility can signal spontaneous breaking of parity P and time inversion T, due to a nonzero vacuum expectation value of the topological charge Q. Such a breaking would produce a nonzero electric dipole moment of the neutron, dn. An upper limit to dn is derived from numerical simulations at increasing volumes.File in questo prodotto:
Non ci sono file associati a questo prodotto.
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
