EnglishA 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.
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http://hdl.handle.net/11568/189135| Titolo: | An upper limit to the electric dipole moment of the neutron from lattice QCD |
| Autori interni: | D'ELIA, MASSIMO DI GIACOMO, ADRIANO |
| Anno del prodotto: | 2007 |
| Rivista: | NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS |
| 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. |
| Handle: | http://hdl.handle.net/11568/189135 |
| Appare nelle tipologie: | 4.1 Contributo in Atti di convegno |
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