An Experimental Study of Radiative Muon Decay
Author | : Brent Adams VanDevender |
Publisher | : |
Total Pages | : 256 |
Release | : 2006 |
Genre | : |
ISBN | : |
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Author | : Brent Adams VanDevender |
Publisher | : |
Total Pages | : 256 |
Release | : 2006 |
Genre | : |
ISBN | : |
Author | : Eilliot Bogart |
Publisher | : |
Total Pages | : 100 |
Release | : 1966 |
Genre | : Muons |
ISBN | : |
The radiative decay of the muon, positive-muon to position + neutrino + e-neutrino + mu'-antineutrino was measured using muons from the Columbia University Nevis Synchrocyclotron. The positron and gamma-ray decay products were observed at relative angles near 180 degrees, using scintillation counters and two 9 in. x 10 in. NaI crystals, which enabled simultaneous measurement of the positron and gamma energies. The pulses from the crystals were displayed on oscilloscopes and photographed, and the measured amplitudes of these pulses were calibrated using the positron spectrum of the nonradiative decay. The two-dimensional energy spectrum for positrons and gammas was obtained for about 900 events, after subtraction of background. This spectrum and the measured rate, obtained by normalizing to the nonradiative decay, were compared with theoretical predictions for the radiative decay. The results were in good agreement with the theory, within statistics, for the case of pure V-A coupling. (Author).
Author | : James E. Pilcher |
Publisher | : |
Total Pages | : |
Release | : 1969 |
Genre | : Mesons |
ISBN | : |
Author | : Feng Xiao |
Publisher | : |
Total Pages | : 254 |
Release | : 2010 |
Genre | : |
ISBN | : 9781124194929 |
A measurement of the radiative muon decay [mu] --> e v e̳ v [m̳u̳] [gamma] branching fraction was done on the basis of the radiative decay data of MEG experiment. The data were taken periodically one day per week with the beam intensity of 1.2x106 [mu] + / s from September to December, 2008. The positron was measured by a spectrometer with gradient magnetic field. The photon was detected by an innovative ̃900 liter liquid xenon scintillation detector. The measurement was carried out with a cut-and-count approach. We report the radiative muon decay branching fraction to be B([mu] --> e vv̄ [gamma]) = (2.84 ± 0.20(stat) ± 0.05(syst))x10−7, with Ee̳> 46 MeV, E [gamma]> 30 MeV, and the opening angle between the two particles [theta] e̳ [gamma] in its full kinematic range. Distributions of three observables, E e̳, E [gamma], and [theta] e̳ [gamma], as well as their kinematic correlations were verified to be consistent with the radiative decays. The measurement is in excellent agreement with the prediction of the Standard Model.
Author | : William H. Morrison (III) |
Publisher | : |
Total Pages | : 118 |
Release | : 1969 |
Genre | : Muons |
ISBN | : |
Author | : David Neil Slone |
Publisher | : |
Total Pages | : 340 |
Release | : 1974 |
Genre | : Hadrons |
ISBN | : |
Author | : United States. Energy Research and Development Administration |
Publisher | : |
Total Pages | : 1314 |
Release | : 1976 |
Genre | : Medicine |
ISBN | : |
Author | : Carmine J. Zanfino |
Publisher | : |
Total Pages | : 142 |
Release | : 1976 |
Genre | : Mesons |
ISBN | : |
Author | : |
Publisher | : |
Total Pages | : 1166 |
Release | : 1975 |
Genre | : Nuclear energy |
ISBN | : |
Author | : |
Publisher | : |
Total Pages | : 586 |
Release | : 1994 |
Genre | : Power resources |
ISBN | : |
Semiannual, with semiannual and annual indexes. References to all scientific and technical literature coming from DOE, its laboratories, energy centers, and contractors. Includes all works deriving from DOE, other related government-sponsored information, and foreign nonnuclear information. Arranged under 39 categories, e.g., Biomedical sciences, basic studies; Biomedical sciences, applied studies; Health and safety; and Fusion energy. Entry gives bibliographical information and abstract. Corporate, author, subject, report number indexes.