Search for parity-nonconservation effects in deep-inelastic μ-N interaction
1976; Elsevier BV; Volume: 64; Issue: 1 Linguagem: Inglês
10.1016/0370-2693(76)90367-1
ISSN1873-2445
AutoresYu.B. Bushnin, A.F. Dunaitsev, R.I. Dzelyadin, S.V. Golovkin, В.Ф. Константинов, Valery Kubarovsky, L.G. Landsberg, V. M. Leontiev, G.P. Makarov, V.A. Mukhin, V.G. Rybakov, T.I. Petrunina, Yu. N. Simonov, В. В. Смирнов, A. M. Zaitsev, A. Zallo,
Tópico(s)Nuclear physics research studies
ResumoThe difference of the cross sections for deep inelastic scattering of muons with average momenta 21 GeV/c with right and left helicity at large angles, i.e., with large momentum transfer, has been measured. No statistically-significant dependence of cross sections on the longitudinal polarization of muons has been found, i.e. no parity-nonconservation effects in deep inelastic μN interaction have been observed. The magnitude of the cross-section asymmetry R =[〈σR〉 − 〈σL〉][〈σR〉+ + 〈σL〉] may be represented as R = β〈Q2〉 = (− 4 ± 6) × 10−3 〈Q2, (GeV/c)2〉. The limitations Go(μ) = (+ 6 ± 10)G have been obtained for the constant Go(μ) of vector-axial interaction (Go(μ)2) [μγα(1 + γ5)μ] Jαo (hadron, V-A).
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