Journal
EUROPEAN PHYSICAL JOURNAL C
Volume 74, Issue 3, Pages -Publisher
SPRINGER
DOI: 10.1140/epjc/s10052-014-2783-9
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Funding
- SNSF
- European Commission [PITN-GA-2010-264564]
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We present an NLO simulation of WWbb production with massive b-quarks at the LHC. Off-shell and non-resonant contributions associated with top-pair and single-top channels and with leptonic W-boson decays are consistently taken into account using the complex-mass scheme. Thanks to the finite b-quark mass, WWbb predictions can be extended to the whole b-quark phase space, thereby including Wt-channel single-top contributions that originate from collinear g -> bb splittings in the four-flavour scheme. This provides a consistent NLO description of tt and Wt production and decay, including quantum interference effects. The simulation is also applicable to exclusive 0-and 1-jet bins, which is of great importance for Higgs-boson studies in the H -> WW channel and for any other analysis with large top backgrounds and jet vetoes or jet bins.
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