Parton-shower matching for electroweak corrections

2015 ◽  
Vol 261-262 ◽  
pp. 308-310 ◽  
Author(s):  
A. Mück
Keyword(s):  
Parton Shower ◽  
Electroweak Corrections

scholarly journals An event generator for same-sign W-boson scattering at the LHC including electroweak corrections

2019 ◽  
Vol 79 (9) ◽  
Author(s):  
Mauro Chiesa ◽  
Ansgar Denner ◽  
Jean-Nicolas Lang ◽  
Mathieu Pellen
Keyword(s):  
Monte Carlo ◽  
Matrix Element ◽  
Parton Shower ◽  
W Boson ◽  
Event Generator ◽  
Monte Carlo Program ◽  
The Matrix ◽  
Electroweak Corrections

Abstract In this article we present an event generator based on the Monte Carlo program Powheg in combination with the matrix-element generator Recola. We apply it to compute NLO electroweak corrections to same-sign W-boson scattering, which have been shown to be large at the LHC. The event generator allows for the generation of unweighted events including the effect of the NLO electroweak corrections matched to a QED parton shower and interfaced to a QCD parton shower. In view of the expected experimental precision of future measurements, the use of such a tool will be indispensable.

scholarly journals Fixed-order and merged parton-shower predictions for WW and WWj production at the LHC including NLO QCD and EW corrections

2020 ◽  
Vol 2020 (10) ◽  
Author(s):  
Stephan Bräuer ◽  
Ansgar Denner ◽  
Mathieu Pellen ◽  
Marek Schönherr ◽  
Steffen Schumann
Keyword(s):  
Cross Sections ◽  
Parton Shower ◽  
Higher Order ◽  
Order Effects ◽  
Leading Order ◽  
Combined Analysis ◽  
Fixed Order ◽  
Higher Order Effects ◽  
Inclusive Sample ◽  
Electroweak Corrections

Abstract First, we present a combined analysis of pp $$ \to {\mu}^{+}{v}_{\mu }{\mathrm{e}}^{-}{\overline{v}}_{\mathrm{e}} $$ → μ + v μ e − v ¯ e and pp $$ \to {\mu}^{+}{v}_{\mu }{\mathrm{e}}^{-}{\overline{v}}_{\mathrm{e}}\mathrm{j} $$ → μ + v μ e − v ¯ e j at next-to-leading order, including both QCD and electroweak corrections. Second, we provide all-order predictions for pp $$ \to {\mu}^{+}{v}_{\mu }{\mathrm{e}}^{-}{\overline{v}}_{\mathrm{e}}+ $$ → μ + v μ e − v ¯ e + jets using merged parton-shower simulations that also include approximate EW effects. A fully inclusive sample for WW production is compared to the fixed-order computations for exclusive zero- and one-jet selections. The various higher-order effects are studied in detail at the level of cross sections and differential distributions for realistic experimental set-ups. Our study confirms that merged predictions are significantly more stable than the fixed-order ones in particular regarding ratios between the two processes.

Application of Asymptotic Methods to Calculating Electroweak Corrections in Polarized Bhabha Scattering

2020 ◽  
Vol 83 (2) ◽  
pp. 307-333
Author(s):  
A. G. Aleksejevs ◽  
S. G. Barkanova ◽  
Yu. M. Bystritskiy ◽  
V. A. Zykunov
Keyword(s):  
Asymptotic Methods ◽  
Bhabha Scattering ◽  
Electroweak Corrections

scholarly journals Next-to-leading-order electroweak corrections to the production of four charged leptons at the LHC

2017 ◽  
Vol 2017 (1) ◽  
Author(s):  
Benedikt Biedermann ◽  
Ansgar Denner ◽  
Stefan Dittmaier ◽  
Lars Hofer ◽  
Barbara Jäger
Keyword(s):  
Leading Order ◽  
Charged Leptons ◽  
Electroweak Corrections

Electroweak corrections to the production at e+e− colliders around 70 GeV

1984 ◽  
Vol 135 (1-3) ◽  
pp. 220-224 ◽  
Author(s):  
Masataka Igarashi ◽  
Nobuya Nakazawa ◽  
Tokuzo Shimada ◽  
Yoshimitsu Shimizu
Keyword(s):  
Electroweak Corrections
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