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Normal and transverse single tau-polarization at the z-peak

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Normal and transverse single tau-polarization at the z-peak

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Bernabeu Alberola, José; González Sprinberg, Gabriel A.; Vidal Perona, Jorge

Aquest document és un/a article, creat/da en: 1994

We study normal (to the collision plane) and transverse (within the collision plane) single-τ polarization in τ pairs produced in e+e− unpolarized collisions at the Z-resonance. The transverse polarization component is sensitive to the anomalous weak-magnetic moment, whereas the normal polarization component is sensitive to a CP-violating weak-electric dipole moment. We show how these components of the single τ polarization are accessible from the angular distribution of its decay products. We define a CP violating asymmetry of the τ decay products which, with 107Z′s produced, provides a sensitivity of 2.3 × 10−18e·cm for the weak-electric dipole moment.

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