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New physics searches in nuclear and neutron β decay
The status of tests of the standard electroweak model and of searches for new physics in
allowed nuclear β decay and neutron decay is reviewed including both theoretical and …
allowed nuclear β decay and neutron decay is reviewed including both theoretical and …
Probing exotic phenomena at the interface of nuclear and particle physics with the electric dipole moments of diamagnetic atoms: A unique window to hadronic and …
The current status of electric dipole moments of diamagnetic atoms which involves the
synergy between atomic experiments and three different theoretical areas, ie particle …
synergy between atomic experiments and three different theoretical areas, ie particle …
New result for the neutron -asymmetry parameter from UCNA
Background: The neutron β-decay asymmetry parameter A 0 defines the angular correlation
between the spin of the neutron and the momentum of the emitted electron. Values for A 0 …
between the spin of the neutron and the momentum of the emitted electron. Values for A 0 …
Performance of the upgraded ultracold neutron source at Los Alamos National Laboratory and its implication for a possible neutron electric dipole moment experiment
The ultracold neutron (UCN) source at Los Alamos National Laboratory (LANL), which uses
solid deuterium as the UCN converter and is driven by accelerator spallation neutrons, has …
solid deuterium as the UCN converter and is driven by accelerator spallation neutrons, has …
Precision measurement of the neutron -decay asymmetry
A new measurement of the neutron β-decay asymmetry A 0 has been carried out by the
UCNA Collaboration using polarized ultracold neutrons (UCNs) from the solid deuterium …
UCNA Collaboration using polarized ultracold neutrons (UCNs) from the solid deuterium …
values of the mirror transitions and the weak-magnetism-induced current in allowed nuclear decay
The precision of correlation measurements in neutron and nuclear β decay has now
reached the level of about 1% and better. At this level of precision, higher-order corrections …
reached the level of about 1% and better. At this level of precision, higher-order corrections …
Precision Measurement of the Asymmetry in Spin-Polarized Decay
B Fenker, A Gorelov, D Melconian, JA Behr… - Physical Review Letters, 2018 - APS
Using Triumf's neutral atom trap, Trinat, for nuclear β decay, we have measured the β
asymmetry with respect to the initial nuclear spin in K 37 to be A β=-0.5707 (13) syst (13) stat …
asymmetry with respect to the initial nuclear spin in K 37 to be A β=-0.5707 (13) syst (13) stat …
Improved limits on Fierz interference using asymmetry measurements from the Ultracold Neutron Asymmetry (UCNA) experiment
The Ultracold Neutron Asymmetry (UCNA) experiment was designed to measure the β-
decay asymmetry parameter, A 0, for free neutron decay. In the experiment, polarized …
decay asymmetry parameter, A 0, for free neutron decay. In the experiment, polarized …
Comparison of ultracold neutron sources for fundamental physics measurements
Ultracold neutrons (UCNs) are key for precision studies of fundamental parameters of the
neutron and in searches for new charge-parity-violating processes or exotic interactions …
neutron and in searches for new charge-parity-violating processes or exotic interactions …
Search for dark matter decay of the free neutron from the UCNA experiment:
It has been proposed recently that a previously unobserved neutron decay branch to a dark
matter particle (χ) could account for the discrepancy in the neutron lifetime observed in …
matter particle (χ) could account for the discrepancy in the neutron lifetime observed in …