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Next-to-next-to-leading order τ+τ- production cross section close to threshold

AuthorsRuiz Femenía, Pedro ; Pich, Antonio
Issue Date13-Jul-2001
PublisherAmerican Physical Society
CitationPhysical review D 64(5): 053001 (2001)
AbstractThe threshold behavior of the cross section σ(e+e-→τ+τ-) is analyzed, taking into account the known higher-order corrections. At present, this observable can be determined to next-to-next-to-leading order in a combined expansion in powers of αs and fermion velocities.
Description13 páginas, 5 figuras.-- PACS number(s): 12.20.Ds, 14.60.Fg
Publisher version (URL)http://dx.doi.org/10.1103/PhysRevD.64.053001
Appears in Collections:(IFIC) Artículos
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