Search for right-handed weak currents in the beta-asymmetry-polarization correlation from N-12 decay
Allet, M Bodek, K Camps, J Deutsch, J FerroLuzzi, M GimenoNogues, F Govaerts, J Lang, J Muller, R Navert, S NaviliatCuncic, O Pepe, L Prieels, R Quin, P Severijns, Natalis Sromicki, J Stephan, E Thomas, E Zejma, J
Elsevier science bv
Physics Letters B vol:383 issue:2 pages:139-144
The polarization of positions emitted along and opposite to the nuclear spin direction has been measured in the decay of polarized N-12. The results are consistent with the Standard Model prediction. In manifest left-right symmetric models this measurement provides a lower limit of 220 GeV/c(2) at 90% CL on the mass of an eventual right-handed gauge boson contributing to the electroweak interaction.