Mössbauer test of T-invariance in 197Au

Tsinoev, V. G.; Chertov, Yu.P.; Danengirsh, S.G.; Shcherbina, Yu.I.; Stepanov, E.P.; Voronin, A. A.

doi:10.1016/0370-2693(82)91274-6

Cited by 8 publications

(10 citation statements)

References 7 publications

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“…The limit obtained in our previous work [8] for the γ -transition in 197 Au was sin( η) 6.6 × 10 −4 .…”

Section: Resultsmentioning

confidence: 68%

“…[8] as A). This rise in sensitivity has been achieved by using the Mossbauer transition with the maximum possible value of the mixing ratio, δ, as well as by the application of the YbFe 2 absorber with a well-resolvable hyperfine structure.…”

Section: Resultsmentioning

confidence: 99%

“…Our previous experiment on γ -transition in 197 Au (see Ref. [8]) was carried out by using the same procedure.…”

Section: -2mentioning

confidence: 99%

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Mössbauer test ofTinvariance inYb171

et al. 2007

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An experiment on testing the time-reversal symmetry in the emission of a mixed E2-M1 Mössbauer γ -transition in 171 Yb has been carried out. The imaginary part of the ratio of a reduced multipole matrix element has been measured by observing the appearance of the additional linear polarization of γ -rays transmitted through the system of resonant filters. The application of this system has made it possible to exclude corrections for the spurious phase that emerges due to the interaction of a γ -ray with surrounding atomic electrons. In the experiment, the phase sin( η) = (6.3 ± 4.6) × 10 −5 and the coefficient of self-compensation of the Faraday rotation k = −(1.1 ± 1.0) × 10 −4 have been observed. The limit η has been found equal to 10.9 × 10 −5 . This is the accuracy of determination of the T -invariance retention.

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“…The limit obtained in our previous work [8] for the γ -transition in 197 Au was sin( η) 6.6 × 10 −4 .…”

Section: Resultsmentioning

confidence: 68%

Section: Resultsmentioning

confidence: 99%

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Mössbauer test ofTinvariance inYb171

et al. 2007

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“…The case of the Tm 2 O 3 crystal in relation to the ratio between the linewidth and quadrupole splitting is similar to that of the SnS one [3] and promises the sensitivity at least at the level of 10 −4 . Note, that the authors of [10] using the method of synchronous detection with reversing of the sign of the magnetic field direction gave the upper limit on the degree of T -invariance violation in the Mössbauer ( + 1/2-+ 3/2) mixed (M1+E2) transition of 197 Au with an energy of 77 keV at the level of 7 · 10 −4 , while in a Hyperfine Interact (2016) 237:10…”

Section: Discussionmentioning

confidence: 99%

“…Time-synchronous diagrams of the periodic modulation of the calculated F S , which is proportional to the circular polarization P C (top), respective to the drive velocity sawtooth and synchronous meander pulses (middle), operating the state of the inverter, and the synchronously-detected signal after the key (2) (bottom) recent experiment on the similar ( + 1/2-+ 3/2) mixed (M1+E2) transition with an energy of 67 keV in 171 Yb this limit was brought to the level of 1 · 10 −4 [11].…”

Section: Figmentioning

confidence: 99%

Compton polarimetry detection of small circularly and linearly polarized impurities in Mössbauer 8.4 keV (3/2-1/2) M1 γ-transition of 169Tm

et al. 2016

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The arrangement of an experiment to detect the P −odd and P , T −odd polarized part of the Mössbauer ( + 3/2-+ 1/2) gamma transition of a deformed 169 Tm nucleus with an energy of 8.4 keV by Compton polarimetry is discussed. Tm 2 O 3 single crystal with a quadrupolarly split Mössbauer spectrum is proposed as a resonance polarizer. A Bescatterer-based Compton polarimeter and a synchronously detecting system will be used to measure the P -odd circular polarization P C and P , T -odd linear polarization P L .The expected accuracy of measuring the relative magnitude of the P , T -odd contribution is about 1% of the magnitude of usual weak nucleon-nucleon interaction.

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T-violation experiments using M�ssbauer transitions

Schäfer

Adelberger

1991

Z. Physik A - Hadrons and Nuclei

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We analyse the effects of time-reversal (T) violation on the transmission of photons through a system of magnetized foils that have a M6ssbauer transition with comparable M1 and E2 strength (e. g. 99Ru or 197Au). We consider experiments that are true tests of T violation and therefore are not subject to effects from final-state interactions, discussing observables that probe either parity-violating or parity-conserving T-odd interactions. We propose a novel three-foil experiment sensitive to a Todd, P-odd multipole admixture. This experiment should be insensitive to most systematic problems faced by the earlier experiments.

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Mössbauer test of T-invariance in 197Au

Cited by 8 publications

References 7 publications

Mössbauer test ofTinvariance inYb171

Mössbauer test ofTinvariance inYb171

Compton polarimetry detection of small circularly and linearly polarized impurities in Mössbauer 8.4 keV (3/2-1/2) M1 γ-transition of 169Tm

T-violation experiments using M�ssbauer transitions

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