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We calculate the complete electroweak O(alpha) corrections to pp, pbar p -> l+l- X (l=e, mu) in the Standard Model of electroweak interactions. They comprise weak and photonic virtual one-loop corrections as well as real photon radiation to…

High Energy Physics - Phenomenology · Physics 2010-04-06 U. Baur , O. Brein , W. Hollik , C. Schappacher , D. Wackeroth

We present a complete next-to-leading order study of top-squark pair production at the LHC, including QCD and EW corrections. The calculation is performed within the Minimal Supersymmetric Standard Model and numerical results are presented…

High Energy Physics - Phenomenology · Physics 2015-06-19 Jan Germer , Wolfgang Hollik , Jonas M. Lindert , Edoardo Mirabella

NLO-QCD corrections to vector boson pair production via weak boson fusion have recently been calculated and implemented into flexible parton-level Monte-Carlo programs. These allow for the computation of cross sections and kinematical…

High Energy Physics - Phenomenology · Physics 2008-11-26 B. Jager , C. Oleari , D. Zeppenfeld

We present a comprehensive study of Higgs boson production associated with a neutrino pair at $e^+e^-$ colliders ($e^+ e^- \to h \, \nu \bar{\nu}$) at next-to-leading-order accuracy in both the Standard Model and the two-Higgs-doublet…

High Energy Physics - Phenomenology · Physics 2026-02-27 Pia Bredt , Tatsuya Banno , Marius Höfer , Syuhei Iguro , Wolfgang Kilian , Yang Ma , Jürgen Reuter , Hantian Zhang

We study the impact of dimension-six operators of the standard model effective field theory relevant for vector-boson fusion and associated Higgs boson production at the LHC. We present predictions at the next-to-leading order accuracy in…

High Energy Physics - Phenomenology · Physics 2017-05-05 Celine Degrande , Benjamin Fuks , Kentarou Mawatari , Ken Mimasu , Veronica Sanz

Recently a slight tension between data and predictions has been reported in $t\bar{t}W$ production by both the CMS and ATLAS collaborations. We revisit the theoretical predictions for this process, focussing on the following two effects. We…

High Energy Physics - Phenomenology · Physics 2020-04-22 Rikkert Frederix , Ioannis Tsinikos

The process $p\,p\hskip-7pt\hbox{$^{^{(\!-\!)}}$} \rightarrow W^{+} W^{-} + X \rightarrow \ell^+_1 \nu_1 \ell^-_2 \bar \nu_2 + X$ is calculated to ${\cal O}(\alpha_s)$ for general $C$ and $P$ conserving $WWV$ couplings ($V=\gamma,\, Z$).…

High Energy Physics - Phenomenology · Physics 2009-10-28 U. Baur , T. Han , J. Ohnemus

We investigate the electroweak process $qq\to qqW$, {\it i.e.} $W$ production via $W\gamma$ and $WZ$ fusion, as a probe for nonstandard $WW\gamma$ and $WWZ$ vertices at hadron supercolliders. Triggering on events with one very forward and…

High Energy Physics - Phenomenology · Physics 2007-05-23 U. Baur , D. Zeppenfeld

We discuss the impact of anomalous WW$\gamma$ and WWZ couplings on WZ+jet production at next-to-leading order QCD, including full leptonic decays of the electroweak gauge bosons. While the inclusive hadronic cross sections do not exhibit…

High Energy Physics - Phenomenology · Physics 2014-11-21 Francisco Campanario , Christoph Englert , Michael Spannowsky

We discuss how the leading electroweak Higgs production processes at the LHC, namely vector-boson fusion and Higgs+W/Z associated production, can be characterized in generic extensions of the Standard Model by a proper set of…

High Energy Physics - Phenomenology · Physics 2016-04-20 Admir Greljo , Gino Isidori , Jonas M. Lindert , David Marzocca

We present numerical results for the production of a $W^+W^-$ pair in association with a jet at the LHC in QCD at next-to-leading order (NLO). We include effects of the decay of the massive vector bosons into leptons with spin correlations…

High Energy Physics - Phenomenology · Physics 2009-04-17 John M. Campbell , R. Keith Ellis , G. Zanderighi

The LHC enters era of the Standard Model Z-boson couplings precise measurements, to match precision of LEP. The calculations of electroweak (EW) corrections in the Monte Carlo generators become of relevance. Precise predictions of Z-boson…

High Energy Physics - Phenomenology · Physics 2019-07-02 E. Richter-Was , Z. Was

Charged Higgs particles are a common feature of many extensions of the Standard Model. While its existence with masses up to the TeV scale can be probed at the Tevatron Run II and LHC hadron colliders, a precise determination of its…

High Energy Physics - Phenomenology · Physics 2007-05-23 Jaume Guasch , Wolfgang Hollik , Arnd Kraft

The production of multiple Higgs bosons at the LHC and beyond is a strong test of the mechanism of electroweak symmetry breaking. Taking inspiration from recent experimental efforts to move towards limits on triple Higgs production at the…

High Energy Physics - Phenomenology · Physics 2024-05-10 Anisha , Daniel Domenech , Christoph Englert , Maria J. Herrero , Roberto A. Morales

The associated production of Higgs boson with a muon pair, $e^+e^-\to \mu^+\mu^- H$, is one of the golden channels to pin down the properties of the Higgs boson in the prospective Higgs factories exemplified by \textsf{CEPC}. The projected…

High Energy Physics - Phenomenology · Physics 2019-01-30 Wen Chen , Feng Feng , Yu Jia , Wen-Long Sang

The analysis of hadronic vector boson decays at LHC does not normally allow for interference with QCD production. These effects are studied here using the Sherpa package and can move by several GeV/c 2 the peak positions experiments would…

High Energy Physics - Phenomenology · Physics 2020-03-18 Cathy Ding , Ben Fuller , Eleanor Jones , Aran Martin , William Murray

First results on the radiative corrections of order O(N_f\alpha_s\alpha) are presented for the off-shell production of W or Z bosons at the LHC, where N_f is the number of fermion flavours. These corrections comprise all diagrams at…

High Energy Physics - Phenomenology · Physics 2021-02-03 Stefan Dittmaier , Timo Schmidt , Jan Schwarz

I present results from recent high-order calculations for the production of electroweak bosons and top quarks. In particular, I discuss $W$ and $Z$ boson production at large transverse momentum, single-top production, and FCNC top…

High Energy Physics - Phenomenology · Physics 2023-02-21 Nikolaos Kidonakis

We calculate the leading electroweak corrections to the light neutral Higgs boson production via $q\bar q'\to WH$ at the Fermilab Tevatron in both the standard model and the minimal supersymmetric model, which arise from the top-quark and…

High Energy Physics - Phenomenology · Physics 2011-01-13 Qing Hong Cao , Chong Sheng Li , Shou Hua Zhu

We calculate next-to-leading order (NLO) QCD corrections to electroweak Higgs plus three jet production. Both vector boson fusion (VBF) and Higgs-strahlung type contributions are included along with all interferences. The calculation is…

High Energy Physics - Phenomenology · Physics 2013-11-27 F. Campanario , T. M. Figy , S. Plätzer , M. Sjödahl