Conveners
Joint BSM - Lowenergy - Future Session US timezone: Chair: Kenichi Nakano
- Hiroki Nagahama (CNS, The University of Tokyo)
- Kenichi Nakano (University of Virginia)
- Hanjie Liu (University of Massachusetts)
- Yuji Goto (RIKEN)
- Shinsuke Kawasaki (KEK)
- Tanja Horn (The Catholic University of America)
- Atsushi Tamii (Research Center for Nuclear Physics)
- Hideki Kohri (RCNP, Osaka University)
- Tsutomu Mibe (IPNS/KEK)
Primordial neutrinos decoupled in the early universe predominantly in helicity eigenstates. Their subsequent propagation through the residual cosmic and galactic magnetic fields partially flips their helicities.[1] In view of the possibility of large neutrino magnetic moments arising from beyond-the-standard-model physics -- e.g., as the XENON1T experiment reported as a possible explanation...
The evolution of primordial neutrino helicities in cosmic magnetic fields and gravitational inhomogeneity has been studied recently [1,2]. Detection of relic neutrinos from the Big Bang, e.g., through the inverse tritium beta decay reaction (ITBD) in the PTOLEMY experiment, remains a major challenge. We examine the implications of the helicity properties of the relic neutrinos on their...
Searches of electric dipole moments (EDM) of charged particles
in pure magnetic rings, such as COSY, or electrostatic and hybrid
magnetic-electric storage rings, planned in the future, require new
methods to disentangle the EDM signal from the large background
produced by magnetic dipole moments. In these experiments, the
sources of systematic background are in-plane magnetic fields. It...
The TRIUMF Ultra-Cold Advanced Neutron (TUCAN) collaboration aims at a precision neutron electric dipole moment (nEDM) measurement with an uncertainty of 10$^{-27}$ e$\cdot$cm, which is an order-of-magnitude better than the current nEDM upper limit [1] and enables us to test Supersymmetry. To achieve this precision, our collaboration has been developing a new high-intensity ultracold neutron...
