QCD corrections to the hadronic production of a heavy quark pair and a W-boson including decay correlations

TY - JOUR

T1 - QCD corrections to the hadronic production of a heavy quark pair and a W-boson including decay correlations

AU - David Badger, Simon

AU - Campbell, John M.

AU - Ellis, R.K.

PY - 2011/3/1

Y1 - 2011/3/1

N2 - We perform an analytic calculation of the one-loop amplitude for the Wboson mediated process 0 → dūQ̄Q̄ 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?)bb̄ with massive b-quarks is included in the program MCFM. A comparison is performed with previous published work.

AB - We perform an analytic calculation of the one-loop amplitude for the Wboson mediated process 0 → dūQ̄Q̄ 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?)bb̄ with massive b-quarks is included in the program MCFM. A comparison is performed with previous published work.

U2 - 10.1007/JHEP03(2011)027

DO - 10.1007/JHEP03(2011)027

M3 - Journal article

SN - 1126-6708

VL - 2011

SP - 027

JO - Journal of High Energy Physics (Online)

JF - Journal of High Energy Physics (Online)

IS - 3

ER -