A. Goncalves's research while affiliated with Federal University of Rio de Janeiro and other places

Publications (4)

Article
Using the short pulses of a linac, a measurement has been performed of partial μ--capture rates in 10B, 12C, and 14N leading, respectively, to the bound excited states of 10Be, 12B, and 14C. These rates are deduced from the intensities of the observed de-excitation nuclear γ rays. A theoretical discussion is given based upon 1p-shell models and mes...
Article
Using the short pulses of a linac a measurement has been performed of partial μ--capture rates in 16O leading to the O- and 1- bound excited states of 16N. The experimental O+-->O- transition rate supports the assumption of a large mesonic exchange effect in the time part of the weak axial current. NUCLEAR REACTIONS Muon capture 16O(μ,ν)16N. Measur...
Article
Using the short pulses of a linac, a measurement has been performed of partial ..mu..⁻-capture rates in ¹°B, ¹²C, and ¹⁴N leading, respectively, to the bound excited states of ¹°Be, ¹²B, and ¹⁴C. These rates are deduced from the intensities of the observed de-excitation nuclear ..gamma.. rays. A theoretical discussion is given based...

Citations

... The far detector is located under a hill with 300 m water equivalent overburden. The muon rate through the inner veto is 40 Hz, of which about 0.3% stop in the neutrino target or γ catcher. Only data from the far detector are included in this analysis. ...
... Therefore a correction is necessary to obtain the interesting ground state polarization from the observed bound state polarization. Measurements of the total rate to bound states (Maier et al., 1964;Reynolds et al., 1963) and the individual rates to excited states (Budyashov et al., 1970;Giffon et al., 1981;Miller et al., 1972a;Roesch et al., 1981a) are employed to determine this correction. ...