Rebecca Godri
A5062447637- Radiation Detection and Scintillator Technologies
- Atomic and Subatomic Physics Research
- Neutrino Physics Research
- Radioactive Decay and Measurement Techniques
- Particle physics theoretical and experimental studies
- Nuclear Physics and Applications
- Dark Matter and Cosmic Phenomena
- Nuclear reactor physics and engineering
University of Tennessee at Knoxville
2023
Fundamental neutron physics, combining precision measurements and theory, probes particle physics at short range with reach well beyond the highest energies probed by LHC. Significant US efforts are underway that will probe BSM CP violation orders of magnitude more sensitivity, provide new data on Cabibbo anomaly, precisely measure lifetime decay, explore hadronic parity violation. World-leading results from Neutron Physics community since last Long Range Plan, include world's most precise...
The current three sigma tension in the unitarity test of Cabbibo-Kobayashi-Maskawa (CKM) matrix is a notable problem with Standard Model elementary particle physics. A long-standing goal study free neutron beta decay to better determine CKM element V ud through measurements lifetime and correlation parameter. Nab collaboration intends measure , neutrino-electron correlation, accuracy sufficient for competitive evaluation based on data alone. This paper gives status report an outlook.
This article proposes a new method to measure the proton detector efficiency for use in "beam" determinations of free neutron lifetime. There is currently 4{\sigma} disagreement between and "storage" methods measuring lifetime neutron. A possible reason this systematic uncertainty that not properly accounted one or both types experiments. Absolute counting an essential facet experimental approach. The absolute known existing experiments could be source hidden error. proposed calibration...