Results 81 to 90 of about 654 (180)

Higher order corrections for precision observables [PDF]

Higher order corrections are a fundamental ingredient for the analysis of physical ob- servables. They are essential to improve the precision of theory predictions within the Standard Model which then lead to an increased sensitivity of these observables
Cerdà Sevilla, M
core   +1 more source

Testing the neutrino content of the muon at muon colliders

Journal of High Energy Physics
Collinear emission of W bosons off a high-energy muon induces a large muon-neutrino component among the Parton Distribution Functions (PDFs) of a muon. In this paper we study the phenomenology related to the ν μ PDF at future high-energy muon colliders ...
Rodolfo Capdevilla, Francesco Garosi, David Marzocca, Bernd Stechauner   +3 more
doaj   +1 more source

Electroweak corrections to Higgs+jet production in gluon fusion

Journal of High Energy Physics
We present the calculation of complete next-to-leading order electroweak corrections to the Higgs boson production in gg → gH channel. We apply the method of differential equations combined with the selection of optimized master integrals to accomplish ...
Long-Bin Chen, Hai Tao Li, Wen-Long Sang
doaj   +1 more source

Electroweak Theory

, 2006
In this lecture we discuss the electroweak Standard Model, its quantum effects, and precision tests. We give an introduction to the construction of the basic Lagrangian, some details on the calculation of amplitudes at the one-loop level, higher-order
Hollik, W.
core  

On-shelļ methods for perturbative QCD [PDF]

, 2006
We present new on-shell techniques for the calculation of colour ordered helicity amplitudes in QCD. We review the methods of on-shell recursion and the MHV rules before applying them to tree-level processes within the Standard Model.
Badger, Simon D., Badger, Simon D
core  

Electroweak splitting functions in the Standard Model and beyond

Journal of High Energy Physics
We derive quasi-collinear factorization formulas in generic spontaneously broken gauge theories with scalars, fermions, and vector bosons. Specifically, we obtain polarized leading-order splitting functions for all possible final-state and initial-state ...
Stefan Dittmaier, Max Reyer
doaj   +1 more source

Two-loop running effects in Higgs physics in Standard Model Effective Field Theory

Journal of High Energy Physics
We consider the renormalization group equations within the Standard Model Effective Field Theory and compute two-loop contributions proportional to the top quark Yukawa coupling for the operator generating an effective Higgs-gluon coupling, focusing on ...
Stefano Di Noi, Ramona Gröber, Manoj K. Mandal   +2 more
doaj   +1 more source

Electroweak Precision Data and the Higgs Mass - Workshop Summary

, 2003
The status of the electroweak precision data as of winter 2003 and the corresponding theoretical calculations are presented. The possible problems within the data and the calculations are discussed in a critical way.
Mönig, K
core  

Next-to-leading order QCD corrections to tt¯Z production at the LHC

, 2008
We present a calculation of the full next-to-leading order QCD corrections to the scattering process pp→tt¯Z. This channel will be used to measure the tt¯Z electroweak couplings at the Large Hadron Collider. These couplings cannot be directly measured in
Petriello, Frank, Lazopoulos, Achilleas, Melnikov, Kirill, McElmurry, Thomas   +3 more
core   +1 more source

Electroweak corrections in the SMEFT: four-fermion operators at high energies

Journal of High Energy Physics
In the Standard Model (SM), electroweak (EW) corrections become significant at high energies, particularly at the tera-electronvolt scale and beyond, due to the presence of Sudakov logarithms.
Hesham El Faham, Ken Mimasu, Davide Pagani, Claudio Severi, Eleni Vryonidou, Marco Zaro   +5 more
doaj   +1 more source