Neutron electric dipole moment in lattice QCD

We present an exploratory computation of the electric dipole moment of the neutron induced by a {ital CP}-violating {theta} term in the QCD Lagrangian in the framework of quenched lattice QCD. We find {ital d}{sub {ital N}}{approx}{minus}4{times}10{sup {minus}14}{theta}e cm.

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Veröffentlicht in:	Physical review letters 1989-09, Vol.63 (11), p.1125-1128
Hauptverfasser:	AOKI, S, GOCKSCH, A
Format:	Artikel
Sprache:	eng
Schlagworte:	645202 - High Energy Physics- Particle Interactions & Properties-Theoretical- Electromagnetic Interactions & Properties 645400 - High Energy Physics- Field Theory BARYONS CHIRAL SYMMETRY Classical and quantum physics: mechanics and fields CP INVARIANCE DIPOLE MOMENTS ELECTRIC DIPOLE MOMENTS ELECTRIC MOMENTS ELEMENTARY PARTICLES Exact sciences and technology FERMIONS FIELD THEORIES HADRON-HADRON INTERACTIONS HADRONS INSTANTONS INTERACTIONS INVARIANCE PRINCIPLES LATTICE FIELD THEORY MASS MESON-BARYON INTERACTIONS MESON-NUCLEON INTERACTIONS MONTE CARLO METHOD NEUTRONS NUCLEONS PARTICLE INTERACTIONS Physics PHYSICS OF ELEMENTARY PARTICLES AND FIELDS PION-NUCLEON INTERACTIONS QUANTUM CHROMODYNAMICS QUANTUM FIELD THEORY QUASI PARTICLES SYMMETRY SYMMETRY BREAKING Theory of quantized fields
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Beschreibung
Zusammenfassung:	We present an exploratory computation of the electric dipole moment of the neutron induced by a {ital CP}-violating {theta} term in the QCD Lagrangian in the framework of quenched lattice QCD. We find {ital d}{sub {ital N}}{approx}{minus}4{times}10{sup {minus}14}{theta}e cm.
ISSN:	0031-9007 1079-7114
DOI:	10.1103/PhysRevLett.63.1125