Conveners
M3-7 Fundamental Symmetries and New Physics at Low Energy I (DNP) | Symétries fondamentales et nouvelle physique à basse énergie (DPN)
- Gerald Gwinner (University of Manitoba)
The Nab collaboration aims to make the world’s most precise, by about a factor of 10, measurement of the electron-neutrino angular correlation parameter “a” and the Fierz interference term “b” in cold neutron beta decay. Along with the neutron lifetime, this will allow the testing of various extensions to the standard model and will help home in on a correct theory describing what makes up...
A non-zero electric dipole moment (EDM) of the free neutron violates CP symmetry. Searching for this elusive quantity can thus reveal information about the matter-antimatter asymmetry of our Universe. The TUCAN collaboration intends to improve the current upper limit on the neutron EDM by one order of magnitude and push into the low $10^{-27}$ ecm sensitivity regime. During a neutron EDM...
Discovering a nonzero neutron electric dipole moment (nEDM) provides some of the tightest constraints on extensions to the Standard Model that attempts to explain the mechanisms underlying \textit{CP}-violation. The objective of the TUCAN (TRIUMF UltraCold Advanced Neutron) collaboration is to search for a permanent EDM of the free neutron, $d_n$, with a sensitivity of $\sigma(d_n) \leq...
The TUCAN EDM experiment aims to measure the neutron electric dipole moment (EDM) to a precision of $1\times 10^{-27}~e$cm. The experiment is a precise relative measurement of the spin precession frequency of ultracold neutrons stored in a bottle, placed in homogenous magnetic and electric fields. The magnetic field is shielded from external influences by conducting the experiment in a...
The matter-antimatter asymmetry in the universe is one of the core physics questions that remains unsolved in the modern era. While there have been attempts to delve into the cause of this mystery, none have yet to provide a comprehensive solution. One possible explanation is linked to the combined violation of charge-conjugation (C) and parity (P) symmetry, an example of which would be the...
