The polarization of positive muons produced in charged current interactions of high-energy antineutrinos in iron has been measured at an average momentum transfer of 〈Q2〉 = 3.2 GeV2. The muon spin is found to be oriented forward with respect to the muon momentum vector with an average polarization of 1.09 ± 0.22, consistent with helicity +1. It is concluded that the weak leptonic charged current retains its dominant vector and axial vector structure at high energies.

Polarization of positive muons produced in high-energy antineutrino interactions / M., Jonker; J., Panman; F., Udo; F. L., Navarria; J. V., Allaby; U., Amaldi; G., Barbiellini; A., Baroncelli; G., Cocconi; J. G. H., De Groot; W., Flegel; P. D., Gall; W., Kozanecki; Longo, Egidio; K. H., Mess; M., Metcalf; J., Meyer; R. S., Orr; A., Savoy Navarro; F., Schneider; A. M., Wetherell; K., Winter; F. W., Buesser; H., Grote; P., Heine; B., Krueger; F., Niebergall; P., Staehelin; E., Grigoriev; V., Kaftanov; V., Khovansky; A., Rosanov; Borgia, Bruno; C., Bosio; Capone, Antonio; Ferroni, Fernando; P., Monacelli; F., De Notaristefani; P., Pistilli; C., Santoni; V., Valente. - In: PHYSICS LETTERS. SECTION B. - ISSN 0370-2693. - STAMPA. - 86:2(1979), pp. 229-233. [10.1016/0370-2693(79)90827-x]

Polarization of positive muons produced in high-energy antineutrino interactions

LONGO, Egidio;BORGIA, BRUNO;CAPONE, Antonio;FERRONI, Fernando;
1979

Abstract

The polarization of positive muons produced in charged current interactions of high-energy antineutrinos in iron has been measured at an average momentum transfer of 〈Q2〉 = 3.2 GeV2. The muon spin is found to be oriented forward with respect to the muon momentum vector with an average polarization of 1.09 ± 0.22, consistent with helicity +1. It is concluded that the weak leptonic charged current retains its dominant vector and axial vector structure at high energies.
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11573/256626
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