Accurate single- and double-differential resummation of colour-singlet processes with MATRIX plus RADISH: W+W- production at the LHC

被引：38

作者：

Kallweit, Stefan ^{[1
,2
]}

Re, Emanuele ^{[3
]}

Rottoli, Luca ^{[1
,2
,4
]}

Wiesemann, Marius ^{[5
]}

机构：

[1] Univ Milano Bicocca, Dipartimento Fis G Occhialini, Piazza Sci 3, I-20126 Milan, Italy

[2] Ist Nazl Fis Nucl, Piazza Sci 3, I-20126 Milan, Italy

[3] Univ Grenoble Alpes, Univ Savoie Mt Blanc, CNRS, LAPTh, F-74940 Annecy, France

[4] Univ Calif Berkeley, Ernest Orlando Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA

[5] Max Planck Inst Phys & Astrophys, Fohringer Ring 6, D-80805 Munich, Germany

来源：

JOURNAL OF HIGH ENERGY PHYSICS | 2020年 / 2020卷 / 12期

关键词：

QCD Phenomenology; NLO Computations; TRANSVERSE-MOMENTUM RESUMMATION; JET CROSS-SECTIONS; HADRON COLLIDERS; ZZ PRODUCTION; QCD CORRECTIONS; PP COLLISIONS; HIGGS-BOSON; PAIRS; DISTRIBUTIONS; UNIVERSALITY;

D O I：

10.1007/JHEP12(2020)147

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 present the combination of fully differential cross sections for colour-singlet production processes at next-to-next-to-leading order (NNLO) QCD obtained with Matrix and all-order resummation through RadISH. This interface allows us to achieve unprecedented accuracy for various transverse observables in 2 -> 2 production processes. As an important application we consider W+W- production at the LHC, more precisely the full leptonic process pp -> l+l '-nu l nu <overbar></mml:mover>l<mml:mo>' + X with l ' not equal l, and we present resummed predictions for differential distributions in presence of fiducial selection cuts. In particular, we resum the transverse-momentum spectrum of the W+W- pair at next-to-next-to-next-to-leading logarithmic ((NLL)-L-3) accuracy and match it to the integrated NNLO cross section. The transverse-momentum spectrum of the leading jet in W+W- production is calculated at NNLO+NNLL accuracy. Finally, the joint resummation for the transverse-momentum spectrum of the W+W- pair in the presence of a jet veto is performed at NNLO+NNLL. Our phenomenological study highlights the importance of higher-order perturbative and logarithmic corrections for precision phenomenology at the LHC.

引用

页数：48

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