Journal
JOURNAL OF HIGH ENERGY PHYSICS
Volume -, Issue 3, Pages -Publisher
SPRINGER
DOI: 10.1007/JHEP03(2011)027
Keywords
NLO Computations; Hadronic Colliders; QCD
Categories
Funding
- Danish Natural Science Research Council [10-084954]
- United States Department of Energy [DE-AC02-07CH11359]
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We perform an analytic calculation of the one-loop amplitude for the W-boson mediated process 0 -> d (u) over barQ (Q) over bar(l) over barl retaining the mass for the quark Q. The momentum of each of the massive quarks is expressed as the sum of two massless momenta and the corresponding heavy quark spinor is expressed as a sum of two massless spinors. Using a special choice for the heavy quark spinors we obtain analytic expressions for the one-loop amplitudes which are amenable to fast numerical evaluation. The full next-to-leading order (NLO) calculation of hadron + hadron -> W(-> e nu)b (b) over bar with massive b-quarks is included in the program MCFM. A comparison is performed with previous published work.
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