Production of Polarized tau Pairs and Tests of CP Violation Using Polarized e+e- Colliders Near Threshold

Details Production of Polarized tau Pairs and Tests of CP Violation Using Polarized e+e- Colliders Near Threshold Production of Polarized tau Pairs and Tests of CP Violation Using Polarized e+e- Colliders Near Threshold

1994-10-11

arxiv.org/abs/hep-ph/9410265v1

Phys.Rev.D51:3172-3181,1995

Physics

High Energy Physics

High Energy Physics - Phenomenology

30 pages, 5 figures, uuencoded file, SLAC-PUB-6685

Scientific paper

10.1103/PhysRevD.51.3172

We consider the production of tau pairs by electron-positron colliding beams at the maximum cross section near the threshold. At this energy tau pairs are produced mostly in the s-wave which implies that the spin of the tau pairs are almost always pointing in the beam direction independent of the production angle. When both electrons and positrons are longitudinally polarized in the same direction, for example 90%, one can obtain tau pairs with 99% polarization in the direction of the polarization vectors of the incident beams. Tests of CP violation and study of the structure of weak interactions using such polarized tau pairs are discussed.

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