Differential cross sections dσ/dy have been measured in semileptonic neutral- and charged-current reactions induced by neutrinos and antineutrinos. The comparison of the neutral- and the charged-current differential cross sections allows the direct determination of the chiral coupling of the neutral neutrino-antineutrino current to left- and right-handed quarks. The result, with a value of g_R^2 = 0.042±0.010, is the first direct determination, with a significance of more than four standard deviations, of a non-zero value of g_R.
EVIDENCE FOR NEUTRAL NEUTRINO CURRENT COUPLING TO RIGHT-HANDED QUARKS
FERRONI, Fernando
1989-01-01
Abstract
Differential cross sections dσ/dy have been measured in semileptonic neutral- and charged-current reactions induced by neutrinos and antineutrinos. The comparison of the neutral- and the charged-current differential cross sections allows the direct determination of the chiral coupling of the neutral neutrino-antineutrino current to left- and right-handed quarks. The result, with a value of g_R^2 = 0.042±0.010, is the first direct determination, with a significance of more than four standard deviations, of a non-zero value of g_R.File in questo prodotto:
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