Journal
PHYSICAL REVIEW LETTERS
Volume 113, Issue 21, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.113.212001
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Funding
- Swiss National Science Foundation (SNF) [CRSII2-141847, 200021-144352, 200020149517, PP00P2-128552]
- Research Executive Agency (REA) of the European Union [PITN-GA-2010-264564, PITN-GA-2012-316704]
- ERC Advanced Grant MC@NNLO [340983]
- European Research Council (ERC) [340983] Funding Source: European Research Council (ERC)
- Swiss National Science Foundation (SNF) [200021_144352, PP00P2_128552] Funding Source: Swiss National Science Foundation (SNF)
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Charged gauge boson pair production at the Large Hadron Collider allows detailed probes of the fundamental structure of electroweak interactions. We present precise theoretical predictions for on-shell W+W- production that include, for the first time, QCD effects up to next to next to leading order in perturbation theory. As compared to next to leading order, the inclusive W+W- cross section is enhanced by 9% at 7 TeV and 12% at 14 TeV. The residual perturbative uncertainty is at the 3% level. The severe contamination of the W+W- cross section due to top-quark resonances is discussed in detail. Comparing different definitions of top-free W+W- production in the four and five flavor number schemes, we demonstrate that top-quark resonances can be separated from the inclusive W+W- cross section without a significant loss of theoretical precision.
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