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 / J. V., Allaby; U., Amaldi; G., Barbiellini; M., Baubillier; F., Bergsma; Capone, Antonio; W., Flegel; L., Lanceri; M., Metcalf; C., Nieuwenhuis; R., Pain; J., Panman; K., Winter; I., Abt; V., Blobel; A., Bungener; F. W., Busser; P. D., Gall; T., Hebbeker; F., Niebergall; P., Stahelin; P., Gorbunov; E., Grigoriev; V., Khovansky; A., Rosanov; Borgia, Bruno; M., Diemoz; Dionisi, Carlo; Dore, Ubaldo; Ferroni, Fernando; Longo, Egidio; Loverre, Pier Ferruccio; L., Luminari; P., Monacelli; S., Morganti; F., Denotaristefani; R., Santacesaria; C., Santoni. - In: PHYSICS LETTERS. SECTION B. - ISSN 0370-2693. - STAMPA. - 231:3(1989), pp. 317-322. [10.1016/0370-2693(89)90222-0]
EVIDENCE FOR NEUTRAL NEUTRINO CURRENT COUPLING TO RIGHT-HANDED QUARKS
CAPONE, Antonio;BORGIA, BRUNO;DIONISI, Carlo;DORE, Ubaldo;FERRONI, Fernando;LONGO, Egidio;LOVERRE, Pier Ferruccio;
1989
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.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
