Publications (10)
Precision muon decay measurements and improved constraints on the weak interaction
TWIST Collaboration, A. Hillairet, R. Bayes +28
The TWIST Collaboration has completed its measurement of the three muon decay parameters Ï, δ, and P_μξ. This paper describes our determination of Ï, which governs the shape o…
A search for two body muon decay signals
R. Bayes, J. Bueno, Yu. I. Davydov +28
Lepton family number violation is tested by searching for decays among the 5.8 positive muon decay events analyzed by the TWIST collaboration. Limits…
Precise measurement of parity violation in polarized muon decay
TWIST Collaboration, J. F. Bueno, R. Bayes +28
We present a new high precision measurement of parity violation in the weak interaction, using polarized muon decay. The TWIST collaboration has measured , where $P_μ^υ
On the plaque topological stability of partially hyperbolic diffeomorphisms
L. Li, C. A. Morales, B. Shin
We prove that every dynamically coherent plaque expansive partially hyperbolic diffeomorphism is topologically stable with respect to the central foliation (in short, {\em plaque t…
New Experimental Constraints for the Standard Model from Muon Decay
R. Bayes, J. F. Bueno, A. Hillairet +27
The TWIST Collaboration has completed a new measurement of the energy-angle spectrum of positrons from the decay of highly polarized muons. A simultaneous measurement of the muon d…
Blind analysis results of the TWIST experiment
A. Hillairet, R. Bayes, J. F. Bueno +28
The TRIUMF Weak Interaction Symmetry Test (TWIST) experiment was designed to test the standard model at high precision in the purely leptonic decay of polarized muons. A general fo…
Measurement of the Muon Decay Parameter delta
TWIST Collaboration, A. Gaponenko, R. Bayes +45
The muon decay parameter delta has been measured by the TWIST collaboration. We find delta = 0.74964 +- 0.00066(stat.) +- 0.00112(syst.), consistent with the Standard Model value o…
Measurement of P_{mu}xi in Polarized Muon Decay
TWIST Collaboration, B. Jamieson, R. Bayes +37
The quantity P_{mu}^{pi}xi, where xi is one of the muon decay parameters and is the degree of muon polarization in pion decay, has been measured. The value P_{mu}^{pi}xi…
Decay of negative muons bound in Al
A. Grossheim, R. Bayes, J. F. Bueno +25
We present the first measurement of the energy spectrum up to 70 MeV of electrons from the decay of negative muons after they become bound in Al atoms. The data were taken w…
A Precision Measurement of the Muon Decay Parameters and
TWIST Collaboration, R. P. MacDonald, R. Bayes +34
The TWIST collaboration has performed new measurements of two of the parameters that describe muon decay: , which governs the shape of the overall momentum spectrum, and ,…