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25 April 2024
 
  » pubmed » pmid12785884

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Search for time-reversal violation in the beta decay of polarized 8Li nuclei
R Huber ; J Lang ; S Navert ; J Sromicki ; K Bodek ; St Kistryn ; J Zejma ; O Naviliat-Cuncic ; E Stephan ; W Haeberli ;
Date 23 May 2003
Journal Phys Rev Lett, 90 (20), 202301
AbstractThe transverse polarization of electrons emitted in the beta decay of polarized 8Li nuclei has been measured. For the time-reversal violating triple correlation parameter we find R=(0.9+/-2.2)x10(-3). This result is in agreement with the standard model and yields improved constraints on exotic tensor contributions to the weak interaction. Combined with other experimental results and using a model for the coupling constants, a new limit for the mass of a possible scalar leptoquark, m(LQ)>560 GeV/c(2) (90% C.L.), is obtained.
Source PubMed, pmid12785884
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