The MTV experiment: a test of time reversal symmetry using polarized 8Li
Abstract
The MTV ( Mott Polarimetry for T- Violation Experiment) experiment at TRIUMF-ISAC ( Isotope Separator and ACcelerator), which aims to achieve the highest precision test of time reversal symmetry in polarized nuclear beta decay by measuring a triple correlation ( R-correlation), is motivated by the search for a new physics beyond the Standard Model. In this experiment, the existence of non-zero transverse electron polarization is examined utilizing the analyzing power of Mott scattering from a thin metal foil. Backward scattering electron tracks are measured using a multi-wire drift chamber for the first time. The MTV experiment was commissioned at ISAC in 2009 using an 80 % polarized 8Li beam at 107 pps, resulting in 0.1 % statistical precision on the R-parameter in the first physics run performed in 2010. Next generation cylindrical drift chamber (CDC) is now being installed for the future run.
- Publication:
-
Hyperfine Interactions
- Pub Date:
- January 2014
- DOI:
- 10.1007/s10751-013-0897-3
- Bibcode:
- 2014HyInt.225..193M
- Keywords:
-
- Time reversal symmetry;
- Test of standard model;
- Electron polarimeter