期刊
JOURNAL OF HIGH ENERGY PHYSICS
卷 -, 期 12, 页码 -出版社
SPRINGER
DOI: 10.1007/JHEP12(2018)121
关键词
NLO Computations; QCD Phenomenology
资金
- ERC Consolidator Grant HICCUP [614577]
- Marie Sklodowska-Curie Individual Fellowship of the European Commission's Horizon 2020 Programme [659147 PrecisionTools4LHC]
- European Research Council (ERC) [614577] Funding Source: European Research Council (ERC)
We present novel predictions for the production of W+W- pairs in hadron collisions that are next-to-next-to-leading order accurate and consistently matched to a parton shower (NNLOPS). All diagrams that lead to the process ppe-X are taken into account, thereby including spin correlations and off-shell effects. For the first time full NNLOPS accuracy is achieved for a 2 4 process. We find good agreement, at the 1 sigma level, with the W+W- rates measured by ATLAS and CMS. The importance of NNLOPS predictions is evident from differential distributions sensitive to soft-gluon effects and from the large impact (10% and more) of including next-to-next-to-leading order corrections on top of MiNLO. We define a charge asymmetry for the W bosons and the leptons in W+W- production at the LHC, which is sensitive to the W polarizations and hence can be used as a probe of new physics.
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