GAMMA-RAY ANGULAR CORRELATION TESTS FOR TIME-REVERSAL INVARIANCE IN NUCLEAR FORCES

Journal Article · Thu Jan 01 04:00:00 EST 1959 · Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D

DOI:https://doi.org/10.1103/PhysRev.113.234· OSTI ID:4257859

Jacobsohn, B A; Henley, E M

A systematic method for constructing tests of timereversal invariance in nuclear forces by means of gamma-ray angular correlations is described. The transition supplying the test consists of a mixed multipole; it must be preceded by a polarizer to produce a nuclear orientation and (in all but one case) followed by a second photon which serves as an analyzer of the final nuclear orientation. The exception is a test in which one detects the linear polarization and direction of a quantum from a nucleus with initial orientation of third degree. A general formula for the direction of a single photon with arbitrary polarization and involving an arbitrary orientation of both the initial and final nuclear states is presented. Expressions of this type have the advantage that individual ones can be combined together in a simple way to form an arbitrary correlation formula. This is carried through numerically in one case for beta-gammagamma direction correlation, where the first photon is mixed E2 and M1. It is shown that such measurements must be carried out to 1 or 2% in order to better the present limit of our knowledge concerning timereversal invariance. (auth)

• Research Organization: Univ. of Washington, Seattle
• NSA Number: NSA-13-010476
• OSTI ID: 4257859
• Journal Information: Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D, Journal Name: Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D Vol. Vol: 113; ISSN PHRVA
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

ANGULAR DISTRIBUTION
BETA DECAY
DECAY
ELECTRIC MOMENTS
ENERGY LEVELS
EQUATIONS
ERRORS
GAMMA RADIATION
GROUP THEORY
LORENTZ TRANSFORMATIONS
MAGNETIC MOMENTS
MIXING
NUCLEAR REACTIONS
NUCLEAR THEORY
NUMERICALS
PHYSICS AND MATHEMATICS
POINCARE GROUP
POLARIZATION
QUANTUM MECHANICS
RELATIVITY THEORY
TIME REVERSAL