O(αs) corrections to the decays of polarized W± and Z bosons into massive quark pairs View Full Text


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Article Info

DATE

2012-10

AUTHORS

S. Groote, J. G. Körner, P. Tuvike

ABSTRACT

We present O(αs) results on the decays of polarized W± and Z bosons into massive quark pairs. The NLO QCD corrections to the polarized decay functions are given up to the second order in the quark mass expansion. We find a surprisingly strong dependence of the NLO polarized decay functions on finite quark mass effects even at the relatively large mass scale of the W± and Z bosons. As a main application we consider the decay t→b+W+ involving the helicity fractions ρmm of the W+ boson followed by the polarized decay for which we determine the O(αs) polar angle decay distribution. We also discuss NLO polarization effects in the production/decay process . More... »

PAGES

2177

References to SciGraph publications

  • 1986-06. Calculation of theO(αs2) parity-violating structure functions in in ZEITSCHRIFT FÜR PHYSIK C PARTICLES AND FIELDS
  • Identifiers

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    http://scigraph.springernature.com/pub.10.1140/epjc/s10052-012-2177-9

    DOI

    http://dx.doi.org/10.1140/epjc/s10052-012-2177-9

    DIMENSIONS

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