QCD parton showers and NLO EW corrections to Drell-Yan

Peter Richardson; Renat R. Sadykov; Andrey A. Sapronov; Michael H. Seymour; Peter Z. Skands

doi:10.1007/JHEP06(2012)090

QCD parton showers and NLO EW corrections to Drell-Yan

Peter Richardson, Renat R. Sadykov, Andrey A. Sapronov, Michael H. Seymour, Peter Z. Skands

Research output: Contribution to journal › Article › Research › peer-review

6 Citations (Scopus)

Abstract

We report on the implementation of an interface between the SANC generator framework for Drell-Yan hard processes, which includes next-to-leading order electroweak (NLO EW) corrections, and the Herwig++ and Pythia8 QCD parton shower Monte Carlos. A special aspect of this implementation is that the initial-state shower evolution in both shower generators has been augmented to handle the case of an incoming photon-in-aproton, diagrams for which appear at the NLO EW level. The difference between shower algorithms leads to residual differences in the relative corrections of 2-3% in the pT (μ) distributions at pT (μ) ≳50GeV (where the NLO EW correction itself is of order 10%).

Original language	English
Article number	89
Journal	Journal of High Energy Physics
Volume	2012
Issue number	6
DOIs	https://doi.org/10.1007/JHEP06(2012)090
Publication status	Published - 2012
Externally published	Yes

Keywords

Hadronic colliders
NLO computations
QCD
Standard model

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10.1007/JHEP06(2012)090

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abstract = "We report on the implementation of an interface between the SANC generator framework for Drell-Yan hard processes, which includes next-to-leading order electroweak (NLO EW) corrections, and the Herwig++ and Pythia8 QCD parton shower Monte Carlos. A special aspect of this implementation is that the initial-state shower evolution in both shower generators has been augmented to handle the case of an incoming photon-in-aproton, diagrams for which appear at the NLO EW level. The difference between shower algorithms leads to residual differences in the relative corrections of 2-3% in the pT (μ) distributions at pT (μ) ≳50GeV (where the NLO EW correction itself is of order 10%).",

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T1 - QCD parton showers and NLO EW corrections to Drell-Yan

AU - Richardson, Peter

AU - Sadykov, Renat R.

AU - Sapronov, Andrey A.

AU - Seymour, Michael H.

AU - Skands, Peter Z.

PY - 2012

Y1 - 2012

N2 - We report on the implementation of an interface between the SANC generator framework for Drell-Yan hard processes, which includes next-to-leading order electroweak (NLO EW) corrections, and the Herwig++ and Pythia8 QCD parton shower Monte Carlos. A special aspect of this implementation is that the initial-state shower evolution in both shower generators has been augmented to handle the case of an incoming photon-in-aproton, diagrams for which appear at the NLO EW level. The difference between shower algorithms leads to residual differences in the relative corrections of 2-3% in the pT (μ) distributions at pT (μ) ≳50GeV (where the NLO EW correction itself is of order 10%).

AB - We report on the implementation of an interface between the SANC generator framework for Drell-Yan hard processes, which includes next-to-leading order electroweak (NLO EW) corrections, and the Herwig++ and Pythia8 QCD parton shower Monte Carlos. A special aspect of this implementation is that the initial-state shower evolution in both shower generators has been augmented to handle the case of an incoming photon-in-aproton, diagrams for which appear at the NLO EW level. The difference between shower algorithms leads to residual differences in the relative corrections of 2-3% in the pT (μ) distributions at pT (μ) ≳50GeV (where the NLO EW correction itself is of order 10%).

KW - Hadronic colliders

KW - NLO computations

KW - QCD

KW - Standard model

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DO - 10.1007/JHEP06(2012)090

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JO - Journal of High Energy Physics

JF - Journal of High Energy Physics

IS - 6

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ER -

QCD parton showers and NLO EW corrections to Drell-Yan

Abstract

Keywords

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