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Measurement Of The Radiative Muon Decay As A Test Of The V A Structure Of The Weak Interactions
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Book Synopsis Measurement of the Radiative Muon Decay as a Test of the V - A Structure of the Weak Interactions by : Emmanuel Munyangabe
Download or read book Measurement of the Radiative Muon Decay as a Test of the V - A Structure of the Weak Interactions written by Emmanuel Munyangabe and published by . This book was released on 2012 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Radiative Decay of the Muon by : Eilliot Bogart
Download or read book Radiative Decay of the Muon written by Eilliot Bogart and published by . This book was released on 1966 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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).
Book Synopsis Measurement of the Decay Parameter [rho] and a Search for Non-Standard Model Decays in the Muon Decay Spectrum by : Ryan David Bayes
Download or read book Measurement of the Decay Parameter [rho] and a Search for Non-Standard Model Decays in the Muon Decay Spectrum written by Ryan David Bayes and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The study of the muon decay process?+? e+?e??? is a powerful constraint on the behaviour of the weak interaction, without contamination of the other, stronger, fundamental interactions. The spectrum measured from the momentum and angles of the decay positrons is parametrized using a set of four decay parameters. The purpose of the TWIST experiment is to measure these decay parameters to an unprecedented precision; an order of magnitude improvement in the uncertainties over measurements completed before the TWIST experiment. Measurements of the muon decay parameters constrain the values of a series of 19 weak coupling constants. In the standard model, V-A weak interaction, 18 of these constants are 0, while the remaining constant describes interactions between left handed particles, gV_LL= 1. The decay parameter? quantifies the behaviour of the spectrum with respect to momentum. According to the standard model the value of this parameter is 3/4. TWIST measured a value of? = 0.74991?0.00009(stat)?0.00028(sys). The measurement is limited by its systematic uncertainty, so a large focus of the experiment was on the determination and control of these uncertainties. The systematic uncertainties are derived from uncertainties in the detector construction and uncertainties in the biases generated by differences between the data and a matching Monte Carlo. Muon decay also limits the possibility of family symmetry breaking interactions. TWIST can be used to search for the possibility of muons decaying into a positron and a single unidentified neutral particle?+? e+X0 that does not otherwise interact with normal matter. The large momentum and angle acceptance of the TWIST spectrometer allows for searches of two body decays for masses of the X0 boson mX0? [0,80] MeV/c, with a variety of behaviours with respect to the angle of the positron track. Upper limits on massive and mass-less X0 decays are set with a 90% confidence level separately at parts per million for massive decays and parts in 10000 for mass-less decays.
Book Synopsis An Experimental Study of Radiative Muon Decay by : Brent Adams VanDevender
Download or read book An Experimental Study of Radiative Muon Decay written by Brent Adams VanDevender and published by . This book was released on 2006 with total page 256 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Energy Research Abstracts written by and published by . This book was released on 1994 with total page 586 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Book Synopsis Measurement of the Decay Parameter Rho and a Search for Non-Standard Model Decays in the Muon Decay Spectrum by :
Download or read book Measurement of the Decay Parameter Rho and a Search for Non-Standard Model Decays in the Muon Decay Spectrum written by and published by . This book was released on 2008 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The study of the muon decay process + e+e is a powerful constraint on the behaviour of the weak interaction, without contamination of the other, stronger, fundamental interactions. The spectrum measured from the momentum and angles of the decay positrons is parametrized using a set of four decay parameters. The purpose of the TWIST experiment is to measure these decay parameters to an unprecedented precision; an order of magnitude improvement in the uncertainties over measurements completed before the TWIST experiment. Measurements of the muon decay parameters constrain the values of a series of 19 weak coupling constants. In the standard model, V-A weak interaction, 18 of these constants are 0, while the remaining constant describes interactions between left handed particles, gV_LL= 1. The decay parameter quantifies the behaviour of the spectrum with respect to momentum. According to the standard model the value of this parameter is 3/4. TWIST measured a value of = 0.749910.00009(stat)0.00028(sys). The measurement is limited by its systematic uncertainty, so a large focus of the experiment was on the determination and control of these uncertainties. The systematic uncertainties are derived from uncertainties in the detector construction and uncertainties in the biases generated by differences between the data and a matching Monte Carlo. Muon decay also limits the possibility of family symmetry breaking interactions. TWIST can be used to search for the possibility of muons decaying into a positron and a single unidentified neutral particle + e+X0 that does not otherwise interact with normal matter. The large momentum and angle acceptance of the TWIST spectrometer allows for searches of two body decays for masses of the X0 boson mX0 [0,80] MeV/c, with a variety of behaviours with respect to the angle of the positron track. Upper limits on massive and mass-less X0 decays are set with a 90% confidence level separately at parts per million for massive decays and parts in.
Download or read book INIS Atomindex written by and published by . This book was released on 1984 with total page 1034 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nuclear Science Abstracts written by and published by . This book was released on 1975 with total page 844 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Radiative Decay Modes of the Muon by : Ray Ryland Crittenden
Download or read book Radiative Decay Modes of the Muon written by Ray Ryland Crittenden and published by . This book was released on 1960 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Tau Lepton Physics by : Michel Davier
Download or read book Tau Lepton Physics written by Michel Davier and published by Atlantica Séguier Frontières. This book was released on 1991 with total page 590 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Beta Decay and Muon Capture by : Masato Morita
Download or read book Beta Decay and Muon Capture written by Masato Morita and published by . This book was released on 1973 with total page 392 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Measurement of the Radiative Decay Branching Fraction in the MEG Experiment by : Feng Xiao
Download or read book Measurement of the Radiative Decay Branching Fraction in the MEG Experiment written by Feng Xiao and published by . This book was released on 2010 with total page 254 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Book Synopsis Measurement of the [delta] and [eta] Muon Decay Parameters by : Anthony Hillairet
Download or read book Measurement of the [delta] and [eta] Muon Decay Parameters written by Anthony Hillairet and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Muon decay is a unique process involving only the four leptons of the first two generations. This makes it an ideal framework to study the weak interaction. The momentum-angle spectrum of the decay positron can be studied using a general 4-fermion interaction model. Only four parameters are needed in this model to entirely describe the spectrum. The measurement of these four muon decay parameters, rho, eta, delta and Pmu xi, provide a direct test of the Standard Model and its extensions. This thesis presents the final results from the blind analysis of the decay parameter delta using the TWIST (TRIUMF Weak Interaction Symmetry Test) spectrometer. The new precision on the parameter delta is a factor of 11.5 better than the last experimental result prior to TWIST achieving the goal of the TWIST collaboration of an order of magnitude improvement. The challenging parameter eta is also measured from the momentum-angle spectrum for the first time since 1969 with a precision improved by a factor of 7.4. The results are included in a global analysis to obtain stringent limits on some of the coupling constants of the 4-fermion interaction. The result of the measurement of delta are used to evaluate the possibility for a non-local tensor interaction.
Book Synopsis Nuclear Power Reactor Instrumentation Systems Handbook by : Joseph M. Harrer
Download or read book Nuclear Power Reactor Instrumentation Systems Handbook written by Joseph M. Harrer and published by . This book was released on 1973 with total page 1052 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Measurement of the Delta and Eta Muon Decay Parameters by :
Download or read book Measurement of the Delta and Eta Muon Decay Parameters written by and published by . This book was released on 2006 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Muon decay is a unique process involving only the four leptons of the first two generations. This makes it an ideal framework to study the weak interaction. The momentum-angle spectrum of the decay positron can be studied using a general 4-fermion interaction model. Only four parameters are needed in this model to entirely describe the spectrum. The measurement of these four muon decay parameters, rho, eta, delta and Pmu xi, provide a direct test of the Standard Model and its extensions. This thesis presents the final results from the blind analysis of the decay parameter delta using the TWIST (TRIUMF Weak Interaction Symmetry Test) spectrometer. The new precision on the parameter delta is a factor of 11.5 better than the last experimental result prior to TWIST achieving the goal of the TWIST collaboration of an order of magnitude improvement. The challenging parameter eta is also measured from the momentum-angle spectrum for the first time since 1969 with a precision improved by a factor of 7.4. The results are included in a global analysis to obtain stringent limits on some of the coupling constants of the 4-fermion interaction. The result of the measurement of delta are used to evaluate the possibility for a non-local tensor interaction.
Book Synopsis Strong Effects in Weak Nonleptonic Decays by : Mark B. Wise
Download or read book Strong Effects in Weak Nonleptonic Decays written by Mark B. Wise and published by . This book was released on 1980 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Measurement of the Delta and Eta Muon Decay Parameters by : Anthony Hillairet
Download or read book Measurement of the Delta and Eta Muon Decay Parameters written by Anthony Hillairet and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: