W + W - production at the LHC: fiducial cross sections and distributions in NNLO QCD

被引:86
作者
Grazzini, Massimiliano [1 ]
Kallweit, Stefan [2 ,3 ]
Pozzorini, Stefano [1 ,3 ]
Rathlev, Dirk [4 ]
Wiesemann, Marius [1 ]
机构
[1] Univ Zurich, Inst Phys, CH-8057 Zurich, Switzerland
[2] Johannes Gutenberg Univ Mainz, Inst Phys, PRISMA Cluster Excellence, D-55099 Mainz, Germany
[3] Univ Calif Santa Barbara, Kavli Inst Theoret Phys, Santa Barbara, CA 93106 USA
[4] Deutsch Elektronen Synchrotron DESY, Theory Grp, D-22607 Hamburg, Germany
基金
瑞士国家科学基金会; 美国国家科学基金会;
关键词
QCD Phenomenology; BOSON PAIR PRODUCTION; TO-LEADING ORDER; TRANSVERSE-MOMENTUM RESUMMATION; HARD-COLLINEAR COEFFICIENTS; DOUBLE-REAL RADIATION; HADRON COLLIDERS; W+W-PRODUCTION; ZZ PRODUCTION; HIGGS-BOSON; JET;
D O I
10.1007/JHEP08(2016)140
中图分类号
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号
摘要
We consider QCD radiative corrections to W (+) W (-) production at the LHC and present the first fully differential predictions for this process at next-to-next-to-leading order (NNLO) in perturbation theory. Our computation consistently includes the leptonic decays of the W bosons, taking into account spin correlations, off-shell effects and non-resonant contributions. Detailed predictions are presented for the different-flavour channel at and 13 TeV. In particular, we discuss fiducial cross sections and distributions in the presence of standard selection cuts used in experimental W (+) W (-) and H -> W (+) W (-) analyses at the LHC. The inclusive W (+) W (-) cross section receives large NNLO corrections, and, due to the presence of a jet veto, typical fiducial cuts have a sizeable influence on the behaviour of the perturbative expansion. The availability of differential NNLO predictions, both for inclusive and fiducial observables, will play an important role in the rich physics programme that is based on precision studies of W (+) W (-) signatures at the LHC.
引用
收藏
页数:40
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