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Measurements of the muon-neutrino mass (1992)

Daum, M. ; Frosch, R. ; Herter, D. ; [et al.]

Springer

The European physical journal 56 (1992), S. S114

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ISSN: 1434-6052

Source: Springer Online Journal Archives 1860-2000

Topics: Physics

Notes: Abstract The most precise upper limits for the muon-neutrino mass $$m_{v_\mu }$$ have been obtained by measuring the muon momentump μ + in pion decayπ +→μ+ v μ at rest. The current result for the squared neutrino mass, $$m_{v_\mu } ^2 = - 0.154 \pm 0.045MeV^2$$ , negative by 3.4 standard deviations, indicates that the experimental value for at least one of the three quantities used in the $$\left( {m_{v_\mu } ^2 } \right) -$$ derivation (p μ +,m π+,m μ+) is wrong.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1007/BF02426784

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