Higgsstrahlung at NNLL′ plus NNLO matched to parton showers in GENEVA

被引：48

作者：

Alioli, Simone ^{[1
,2
]}

Broggio, Alessandro ^{[1
,2
]}

Kallweit, Stefan ^{[1
,2
]}

Lim, Matthew A. ^{[1
,2
]}

Rottoli, Luca ^{[1
,2
]}

机构：

[1] Univ Milano Bicocca, Piazza Sci 3, I-20126 Milan, Italy

[2] INFN, Piazza Sci 3, I-20126 Milan, Italy

来源：

PHYSICAL REVIEW D | 2019年 / 100卷 / 09期

关键词：

TRANSVERSE-MOMENTUM RESUMMATION; COLLINEAR EFFECTIVE THEORY; JET CROSS-SECTIONS; HIGGS-STRAHLUNG; BOSON; DIS;

D O I：

10.1103/PhysRevD.100.096016

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present results for the Higgsstrahlung process within the GENEVA Monte Carlo framework. We combine the fully differential next-to-next-to-leading order (NNLO) calculation with the higher-order resummation in the 0-jettiness resolution variable (beam thrust). The resulting parton-level events are further showered and hadronized by PYTHIA8. The beam thrust resummation is carried out to next-to-next-to-leading logarithmic accuracy, consistently incorporating all singular virtual and real NNLO corrections. It thus provides a natural perturbative connection between the NNLO calculation and the parton shower regime, including a systematic assessment of perturbative uncertainties. In this way, observables which are inclusive over the additional radiation are correct to NNLO, while the description of 0-jet -like resummation variables is improved beyond the parton shower approximation. We provide predictions for the 13 TeV LHC.

引用

页数：20

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