An upper limit to the electric dipole moment of the neutron from lattice QCD

B. Alles; M. D'Elia; A. Di Giacomo

doi:10.1016/j.nuclphysbps.2006.11.059

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arXiv · hep-lat/0510067

An upper limit to the electric dipole moment of the neutron from lattice QCD

B. Alles·M. D'Elia·A. Di Giacomo

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Abstract

A linear increase with the volume of the topological susceptibility can signal spontaneous breaking of parity and time inversion, due to a nonzero vacuum expectation value of the topological charge. Such a breaking would produce a nonzero electric dipole moment of the neutron, d_n. An upper limit to d_n is derived from numerical simulations at increasing volumes.

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B. Alles, M. D'Elia, A. Di Giacomo. 2005-10-11. An upper limit to the electric dipole moment of the neutron from lattice QCD. https://doi.org/10.1016/j.nuclphysbps.2006.11.059

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