6533b820fe1ef96bd1279c19
RESEARCH PRODUCT
The τ+τ− production cross section near threshold revisited
Pedro Ruiz-femeniasubject
PhysicsHigh Energy Physics - PhenomenologyNuclear and High Energy PhysicsCross section (physics)Near thresholdParticle physicsHigh Energy Physics - Phenomenology (hep-ph)FOS: Physical sciencesSigmaProduction (computer science)Atomic and Molecular Physics and Opticsdescription
Next-to-next-to-leading contributions to the cross section sigma(e+e- -> tau+tau-) at energies close to threshold are analysed, taking into account the known non-relativistic effects and O(alpha^2) corrections. The numerical changes with respect to previous works are small, but the new corrections give a true estimate of the uncertainty in the theoretical calculation.
year | journal | country | edition | language |
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2003-07-01 | Nuclear Physics B - Proceedings Supplements |