Muon Physics: A Pillar of the Standard Model

Abstract

Since its discovery in the 1930s, the muon has played an important role in our quest to understand the sub-atomic theory of matter. The muon was the first second-generation standard-model particle to be discovered, and its decay has provided information on the (Vector -Axial Vector) structure of the weak interaction, the strength of the weak interaction, G_F, and the conservation of lepton number (flavor) in muon decay. The muon's anomalous magnetic moment has played an important role in restricting theories of physics beyond the standard standard model, where at present there is a 3.4 standard-deviation difference between the experiment and standard-model theory. Its capture on the atomic nucleus has provided valuable information on the modification of the weak current by the strong interaction which is complementary to that obtained from nuclear beta decay.

8 pages, 9 figures. Invited paper for the Journal of Physical Society in Japan (JPSJ), Special Topics Issue "Frontiers of Elementary Particle Physics, The Standard Model and beyond"

References in corpus (37)

• Big-Bang nucleosynthesis (Particle Data Group mini-review)
• The Cosmological Parameters 2006
• Final Report of the Muon E821 Anomalous Magnetic Moment Measurement at BNL
• An Improved Experimental Limit on the Electric Dipole Moment of the Neutron
• Muon Decay and Physics Beyond the Standard Model
• The Muon Anomalous Magnetic Moment: A Harbinger For "New Physics"
• Violations of lepton flavour and CP in supersymmetric unified theories
• Detailed calculation of lepton flavor violating muon-electron conversion rate for various nuclei
• Supersymmetric Dark Matter in Light of WMAP
• A new limit on the permanent electric dipole moment of ^{199}Hg
• Precise Prediction for the W-Boson Mass in the Standard Model
• Muon g-2: Review of Theory and Experiment
• New Bounds from Searching for Muonium to Antimuonium Conversion
• A new method of measuring electric dipole moments in storage rings
• Fermi Constants and ``New Physics''
• Leptogenesis and the Violation of Lepton Number and CP at Low Energies
• On the Precise Determination of the Fermi Coupling Constant from the Muon Lifetime
• The Tenth-Order QED Contribution to the Lepton g-2: Evaluation of Dominant ${\alpha }^5$ Terms of Muon g-2
• Induced pseudoscalar coupling of the proton weak interaction
• Massive Neutrinos and Flavour Violation
• Lepton Flavor Violation without Supersymmetry
• Measurement of the Rate of Muon Capture in Hydrogen Gas and Determination of the Proton's Pseudoscalar Coupling $g_P$
• Muon anomalous magnetic moment, lepton flavor violation, and flavor changing neutral current processes in SUSY GUT with right-handed neutrino
• Lepton Electric Dipole Moments in Non-Degenerate Supersymmetric Seesaw Models
• Lepton Flavour Violation In Supersymmetric Models with Trilinear R-parity Violation
• Theoretical Expectations for the Muon's Electric Dipole Moment
• Lepton flavor violation in the Randall-Sundrum model with bulk neutrinos
• Radiative Muon Capture on Hydrogen and the Induced Pseudoscalar Coupling
• Improved Measurement of the Positive Muon Lifetime and Determination of the Fermi Constant
• Enhanced electric dipole moment of the muon in the presence of large neutrino mixing
• Higgs-mediated muon-electron conversion process in supersymmetric seesaw model
• Neutrino Masses and Lepton Flavour Violation in Thick Brane Scenarios
• Super-conservative interpretation of muon g-2 results applied to supersymmetry
• First observation of psi(2S)-->K_S K_L
• Escape from washing out of baryon number in a two-zero-texture general Zee model compatible with the large mixing angle MSW solution
• Measurement of P_{mu}xi in Polarized Muon Decay
• Ortho-para transition rate in $\mu$-molecular hydrogen and the proton's induced pseudoscalar coupling $g_p$

Cited by in corpus (2)

• Constraining New Physics with a Positive or Negative Signal of Neutrino-less Double Beta Decay
• A search for a cosmologically-relevant boson in muon decay