Experiment to search for time reversal invariance violation (TRIV) in the decay of free polarized neutrons

Journal Article · Thu Apr 01 00:00:00 EST 1993 · Bulletin of the American Physical Society

OSTI ID:243518

Wasserman, E G; Richardson, J M; Thompson, A K ^[1]

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1. and others

Measurement of the triple angular correlation of the neutron spin, electron momentum, and proton recoil from neutron beta decay provides a sensitive test of time reversal invariance. The experimental technique entails counting coincidences of betas and proton recoils from the in-flight decay of polarized cold neutrons. The TRIV signal consists of a non-vanishing difference when the neutron spin is flipped. Detailed Monte Carlo studies, confirmed by a test run at the NIST Cold Neutron Research Facility (CNRF), show that the detector employs a geometry about 7 times more sensitive than those used in previous experiments. Plans for a physics run at the NIST CNRF with the full detector system will be discussed.

• OSTI ID: 243518
• Report Number(s): CONF-9304297-; ISSN 0003-0503; TRN: 96:002199-0013
• Journal Information: Bulletin of the American Physical Society, Vol. 38, Issue 2; Conference: 1993 joint meeting of the American Physical Society and the American Association of Physics Teachers, Washington, DC (United States), 12-15 Apr 1993; Other Information: PBD: Apr 1993
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
COLD NEUTRONS
T INVARIANCE
BETA DECAY
POLARIZATION
ELECTRONS
PROTONS