منابع مشابه
– 1 – Muon Decay Parameters
Introduction: All measurements in direct muon decay, μ − → e − + 2 neutrals, and its inverse, ν μ + e − → μ − + neutral, are successfully described by the " V-A interaction, " which is a particular case of a local, derivative-free, lepton-number-conserving, four-fermion interaction [1]. As shown below, within this framework, the Standard Model assumptions, such as the V-A form and the nature of...
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Recently Georgi has discussed the possible existence of ‘Unparticles’ describable by operators having non-integral scaling dimensions. With the interaction of these with the Standard Model (SM) particles being constrained only by gauge and Lorentz symmetries, it affords a new source for lepton flavour violation. Current and future muon decay experiments are shown to be very sensitive to such sc...
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In the present work, we have obtained the equation of state for neutron star matter considering the in uence of the ferromagnetic and antiferromagnetic spin state. We have also investigated the structure of neutron stars. According to our results, the spin asymmetry stiens the equation of state and leads to high mass for the neutron star.
متن کاملNegative Muon Spin Rotation Experiment"
Results of the experimental project using ne| ive muon spin rotation at Lawrence Berkeley Laboratory are reported. The following ave been discussed briefly, i) The bound muon g factors from the viewpoints of the relativistic and nuclear polarization effects, ii) Strange depolarization phenomena in terms of the difference between the muonic-atom probe and its equivalent nuclear probe iii) Applic...
متن کاملMuon Decay Parameters (TWIST experiment at TRIUMF)
The TRIUMF Weak Interaction Symmetry Test (TWIST) experiment has measured the spectrum of positrons from muon decay and determined the decay parameters: ρ = 0.75014 ± 0.00017(stat.) ± 0.00044(syst.) ± 0.00011(η), δ = 0.75067 ± 0.00030(stat.) ± 0.00067(syst.), P π µ ξ = 1.0003 ± 0.0006(stat.) ± 0.0038(syst.). The results are in good agreement with the Standard Model. Future prospects for this me...
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ژورنال
عنوان ژورنال: Physical Review D
سال: 2014
ISSN: 1550-7998,1550-2368
DOI: 10.1103/physrevd.90.053004