Limits on the Composite Structure of the Tau Lepton and Quarks From Anomalous Magnetic Moment Measurements in $e^+ e^-$ Annihilation

One of the best tests for compositeness of leptons or quarks is the presence of an anomalous magnetic moment F2. We determine limits on F2 for the τ, from e+e−→τ+τ− at PETRA, of F2τ<~0.02. We also present limits on the F2 of the quarks. We suggest lower-energy experiments on the angular distribution to give an independent measurement of F2τ. Future experiments near the Z0 peak are discussed.

MODEL: PREQUARK
LEPTON: MODEL
QUARK: MODEL
MODEL: COMPOSITE
VALIDITY TEST
ELECTRON POSITRON: ANNIHILATION
ANNIHILATION: ELECTRON POSITRON
TAU: ELECTROPRODUCTION
ELECTROPRODUCTION: TAU
TAU: PAIR PRODUCTION

References(6)

Figures(0)

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