Study of time reversal violation in β decay of polarized<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mmultiscripts><mml:mrow><mml:mi mathvariant="normal">Li</mml:mi></mml:mrow><mml:mprescripts /><mml:mrow /><mml:mrow><mml:mn>8</mml:mn></mml:mrow><mml:mrow /><mml:mrow /></mml:mmultiscripts></mml:mrow></mml:math>

Sromicki, J.; Allet, M.; Bodek, K.; Hajdas, W.; Lang, J.; Müller, R.; Navert, S.; Naviliat‐Cuncic, O.; Zejma, J.; Haeberli, W.

doi:10.1103/physrevc.53.932

Cited by 31 publications

(35 citation statements)

References 77 publications

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“…The first with 19 Ne (Schneider et al, 1983) and the second with 8 Li (Huber et al, 2003;Sromicki et al, 1996). The 19 Ne (Schneider et al, 1983) was polarized to essentially 100% by deflection of an atomic beam in a "Stern-Gerlach" magnet.…”

Section: R-correlationmentioning

confidence: 99%

“…A high-precision measurement of the R-parameter was carried out in the 1990's for the Gamow-Teller decay of 8 Li at the Paul Scherrer Institute (Huber et al, 2003;Sromicki et al, 1996). The set-up for this experiment (Fig.…”

Section: R-correlationmentioning

confidence: 99%

“…For the D-type correlation a precision of a few times 10 −3 was recently obtained in K + -decay (Abe et al, 2004). R-type triple correlation experiments in the decays of polarized Λ 0 particles have yielded results that are often one to two orders of magnitude less precise than the R-correlation experiment with 8 Li (Sromicki et al, 1996). Recently, a precision of about 8 × 10 −3 was obtained for the R-type transverse positron polarization in muon decay (Danneberg et al, 2005).…”

Section: Comparison With Other Fieldsmentioning

confidence: 99%

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Tests of the standard electroweak model in nuclear beta decay

2006

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We review the current status of precision measurements in allowed nuclear beta decay, including neutron decay, with emphasis on their potential to look for new physics beyond the standard electroweak model. The experimental results are interpreted in the framework of phenomenological model-independent descriptions of nuclear beta decay as well as in some specific extensions of the standard model. The values of the standard couplings and the constraints on the exotic couplings of the general beta decay Hamiltonian are updated. For the ratio between the axial and the vector couplings we obtain C A /C V = −1.26992(69) under the standard model assumptions. Particular attention is devoted to the discussion of the sensitivity and complementarity of different precision experiments in direct beta decay. The prospects and the impact of recent developments of precision tools and of high intensity low energy beams are also addressed.

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Section: R-correlationmentioning

confidence: 99%

Section: R-correlationmentioning

confidence: 99%

Section: Comparison With Other Fieldsmentioning

confidence: 99%

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Tests of the standard electroweak model in nuclear beta decay

2006

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“…We note significant progress achieved in this kind of study for nuclear decay of polarized SLi [25] at the Paul Scherrer Institute (PSI), Switzerland. The SLi experiment restricts severly the tensor, time reversal violating components.…”

Section: Prospects For the Experimentsmentioning

confidence: 99%

Low energy frontier: Physics with polarized cold neutrons

Sromicki

2000

Czech J Phys

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Recent developments in investigations of beta decay of the free neutron are discussed. Measurements of the neutron lifetime Tn and the electron emission asymmetry A,~ are a classic source of determination of the Standard Model parameters Gw, GA and An. Combined with the results of the muon decay experiments, the nuclear superallowed 0--+0 transitions and decays of particles containing heavy quarks, they provide tests of the SM assumptions: the unitarity of the CKM matrix, the number of the neutrino families, or the CVC hypothesis. In contrast, more complex correlations between the spins and the momenta of the emitted particles, (e.g. Bn, D,~, R,~ or G,~), are uniquely sensitive to the so called "Physics beyond the Standard Model". Thus the question of the right handed bosons, the admixture of the scalar or tensor interaction, with or without time reversal violating terms, may be addressed separately in a dedicated, single experiment. Further development of powerful beams of polarized cold neutrons and sources of ultracold neutrons is imperative for progress in these studies.

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“…The R-coefficient has been measured in 8 Li and a measurement in neutron decay is being designed [34]. On inspection of the general expression for R,…”

Section: Other Correlation Observables In Beta Decaymentioning

confidence: 99%

Time reversal invariance - a test in free neutron decay

Lising¹

1999

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Study of time reversal violation in β decay of polarizedLi8

Cited by 31 publications

References 77 publications

Tests of the standard electroweak model in nuclear beta decay

Tests of the standard electroweak model in nuclear beta decay

Low energy frontier: Physics with polarized cold neutrons

Time reversal invariance - a test in free neutron decay

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