Abstract
Muonless single π0 production by muon-neutrinos and -antineutrinos has been studied in an aluminium spark-chamber. The corresponding reactions with muon were used as a reference. The relative cross sections are found to be R̄.0304′0 = 0.40 ± 0.06 for neutrinos, and R̄′0 = 0.61 ± 0.10 for antineutrinos. The muonless π0 cross section ratio for anti-neutrinos and neutrinos is rNC = 0.50 ± 0.09. This result excludes parity conservation in this process at a level of 3.5 standard deviations. From rNC, and independently from R′0/R̄′0, we derive sin2 θ W = 0.37 ± 0.05.
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References
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© 1977 Friedr. Vieweg & Sohn Verlagsgesellschaft mbH, Braunschweig
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Faissner, H. et al. (1977). Muonless π0-Production by Muon-Neutrinos and -Antineutrinos. In: Faissner, H., Reithler, H., Zerwas, P. (eds) Proceedings of the International Neutrino Conference Aachen 1976. Vieweg+Teubner Verlag. https://doi.org/10.1007/978-3-322-90614-4_29
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DOI: https://doi.org/10.1007/978-3-322-90614-4_29
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