Particle physics today faces the challenge of explaining the mystery of dark matter, the origin
of matter over anti-matter in the Universe, the origin of the neutrino masses, the apparent …

A permanent electric dipole moment (EDM) of a particle or system is a separation of charge
along its angular momentum axis and is a direct signal of T violation and, assuming CPT …

We report an improved measurement of the free neutron lifetime τ n using the UCN τ
apparatus at the Los Alamos Neutron Science Center. We count a total of approximately 38× …

The precise value of the mean neutron lifetime, τn, plays an important role in nuclear and
particle physics and cosmology. It is used to predict the ratio of protons to helium atoms in …

We present the design of a next-generation experiment, n2EDM, currently under
construction at the ultracold neutron source at the Paul Scherrer Institute (PSI) with the aim …

The calculation of the neutron electric dipole moment within effective field theories for
physics beyond the Standard Model requires non-perturbative hadronic matrix elements of …

We investigate the interplay between the high-and low-energy phenomenology of CP-
violating interactions of the Higgs boson with gauge bosons. For this purpose, we use an …

A cryogenic apparatus is described that enables a new experiment, nEDM@ SNS, with a
major improvement in sensitivity compared to the existing limit in the search for a neutron …

Fornal and Grinstein recently proposed that the discrepancy between two different methods
of neutron lifetime measurements, the beam and bottle methods, can be explained by a …

A bstract The translation of experimental limits on the neutron electric dipole moment into
constraints on heavy CP-violating physics beyond the Standard Model requires knowledge …