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Measurement Of The Delta And Eta Muon Decay Parameters
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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 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:
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 A Precision Measurement of the Muon Decay Parameters Rho and Delta by : Robert Paul MacDonald
Download or read book A Precision Measurement of the Muon Decay Parameters Rho and Delta written by Robert Paul MacDonald and published by . This book was released on 2008 with total page 340 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Precision Measurement of the Muon Decay Parameter Delta by : Andrei Gaponenko
Download or read book A Precision Measurement of the Muon Decay Parameter Delta written by Andrei Gaponenko and published by . This book was released on 2005 with total page 202 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Measurement of the Eta Parameter in Muon Decay by : Roy Robert Bossingham
Download or read book Measurement of the Eta Parameter in Muon Decay written by Roy Robert Bossingham and published by . This book was released on 1989 with total page 352 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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 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.
Book Synopsis Current Experiments in Elementary Particle Physics by :
Download or read book Current Experiments in Elementary Particle Physics written by and published by . This book was released on 1985 with total page 52 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 1990 with total page 840 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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:
Book Synopsis Scientific and Technical Aerospace Reports by :
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 500 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Measurement of the Michel Parameters [rho] and [eta] in Leptonic Tau Decays by : Mandeepa Chadha
Download or read book A Measurement of the Michel Parameters [rho] and [eta] in Leptonic Tau Decays written by Mandeepa Chadha and published by . This book was released on 1997 with total page 404 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 1976 with total page 964 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Measurement of the Michel Parameter Rho in Muon Decay by :
Download or read book A Measurement of the Michel Parameter Rho in Muon Decay written by and published by . This book was released on 1994 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Measurement of The? Parameter In? Decay by :
Download or read book Measurement of The? Parameter In? Decay written by and published by . This book was released on 1989 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This paper discusses the following topics on the muon plus decay; muon decay spectrum; previous determinations of?; experimental apparatus; distortions of the spectrum; and data analysis and results. 31 figs. (LSP).
Download or read book Physics Briefs written by and published by . This book was released on 1990 with total page 866 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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