Results 1 to 10 of about 1,061,164 (279)

Electromagnetic finite-size effects beyond the point-like approximation [PDF]

open access: yesEPJ Web of Conferences, 2022
We present a model-independent and relativistic approach to analytically derive electromagnetic finite-size effects beyond the point-like approximation.
Di Carlo Matteo   +3 more
doaj   +1 more source

Relating amplitude and PDF factorisation through Wilson-line geometries

open access: yesJournal of High Energy Physics, 2019
We study long-distance singularities governing different physical quantities involving massless partons in perturbative QCD by using factorisation in terms of Wilson-line correlators. By isolating the process-independent hard-collinear singularities from
Giulio Falcioni   +2 more
doaj   +1 more source

Large gauge effects and the structure of amplitudes

open access: yesJournal of High Energy Physics, 2023
We show that large gauge transformations modify the structure of momentum conservation leading to non-vanishing three-point amplitudes in a simple toy model of a gravitational wave event.
Andrea Cristofoli   +3 more
doaj   +1 more source

One-loop central-emission vertex for two gluons in N $$ \mathcal{N} $$ = 4 super Yang-Mills theory

open access: yesJournal of High Energy Physics, 2022
A necessary ingredient for extending the BFKL equation to next-to-next-to-leading logarithmic (NNLL) accuracy is the one-loop central emission vertex (CEV) for two gluons which are not strongly ordered in rapidity. Here we consider the one-loop six-gluon
Emmet P. Byrne   +4 more
doaj   +1 more source

Higgs coupling measurements and the scale of new physics [PDF]

open access: yesJournal of High Energy Physics, 2020
A primary goal of present and future colliders is measuring the Higgs couplings to Standard Model (SM) particles. Any observed deviation from the SM predictions for these couplings is a sign of new physics whose energy scale can be bounded from above by ...
F. Abu-Ajamieh   +3 more
semanticscholar   +1 more source

Higgs characterisation in the presence of theoretical uncertainties and invisible decays

open access: yesEuropean Physical Journal C: Particles and Fields, 2017
While the Higgs characterisation programme is well under way, direct signs for new physics beyond the Standard Model remain elusive. Performing a fit of fully differential Higgs production cross sections at the LHC to a subset of Higgs-relevant effective
Christoph Englert   +3 more
doaj   +1 more source

The on-shell expansion: from Landau equations to the Newton polytope

open access: yesJournal of High Energy Physics, 2023
We study the application of the method of regions to Feynman integrals with massless propagators contributing to off-shell Green’s functions in Minkowski spacetime (with non-exceptional momenta) around vanishing external masses, p i 2 → 0 $$ {p}_i^2\to 0
Einan Gardi   +4 more
doaj   +1 more source

Top mass determination, Higgs inflation, and vacuum stability [PDF]

open access: yes, 2014
The possibility that new physics beyond the Standard Model (SM) appears only at the Planck scale $M_P$ is often considered. However, it is usually argued that new physics interactions at $M_P$ do not affect the SM stability phase diagram, so the latter ...
Branchina, Vincenzo   +2 more
core   +1 more source

Towards the ultimate SM fit to close in on Higgs physics [PDF]

open access: yes, 2013
A bstractWith the discovery of the Higgs at the LHC, experiments have finally addressed all aspects of the Standard Model (SM). At this stage, it is important to understand which windows for beyond the SM (BSM) physics are still open, and which are ...
A. Pomarol, F. Riva
semanticscholar   +1 more source

Preserving scientific integrity in academic publishing: Navigating artificial intelligence, journal policies and the impact factor as a quality indicator

open access: yesKnee Surgery, Sports Traumatology, Arthroscopy, EarlyView.
Abstract The integration of artificial intelligence (AI), the rise of mega‐journals, and the manipulation of impact factors present challenges to scientific integrity. These trends threaten the core principles of objectivity, reproducibility, and transparency.
Mahmut Enes Kayaalp   +12 more
wiley   +2 more sources

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