Abstract
A new test of Lorentz invariance in the weak interactions has been made by searching for variations in the decay rate of spin-polarized Na-20 nuclei. This test is unique to Gamow-Teller transitions, as was shown in the framework of a recently developed theory that assumes a Lorentz symmetry breaking background field of tensor nature. The nuclear spins were polarized in the up and down direction, putting a limit on the amplitude of sidereal variations of the form vertical bar(Gamma(up) - Gamma(down))vertical bar/(Gamma(up) + Gamma(down))
Original language | English |
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Journal | Physical Review D |
Volume | 88 |
Issue number | 7 |
DOIs | |
Publication status | Published - 15 Oct 2013 |
Externally published | Yes |
Keywords
- ROTATIONAL INVARIANCE