First test of Lorentz invariance in the weak decay of polarized nuclei

K. Jungmann; J. P. Noordmans; C. J. G. Onderwater; R. G. E. Timmermans; L. Willmann; H. W. Wilschut

doi:10.1103/PhysRevD.88.071901

First test of Lorentz invariance in the weak decay of polarized nuclei

K. Jungmann
, J. P. Noordmans
, C. J. G. Onderwater
, R. G. E. Timmermans
, L. Willmann
, H. W. Wilschut^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › Academic › peer-review

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
Journal	Physical Review D
Volume	88
Issue number	7
DOIs	https://doi.org/10.1103/PhysRevD.88.071901
Publication status	Published - 15 Oct 2013
Externally published	Yes

Keywords

ROTATIONAL INVARIANCE

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https://research.rug.nl/en/publications/280e0d58-1ea0-40c0-ae48-1c0c4a6e0166Licence: Other

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AU - Jungmann, K.

AU - Noordmans, J. P.

AU - Onderwater, C. J. G.

AU - Timmermans, R. G. E.

AU - Willmann, L.

AU - Wilschut, H. W.

PY - 2013/10/15

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N2 - 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))

AB - 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))

KW - ROTATIONAL INVARIANCE

U2 - 10.1103/PhysRevD.88.071901

DO - 10.1103/PhysRevD.88.071901

M3 - Article

SN - 1550-7998

VL - 88

JO - Physical Review D

JF - Physical Review D

IS - 7

ER -

First test of Lorentz invariance in the weak decay of polarized nuclei

Abstract

Keywords

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