Results 41 to 50 of about 1,042,583 (285)

Isospin mass differences of the B, D and K

open access: yesJournal of High Energy Physics, 2023
We compute the electromagnetic mass difference for the B-, D- and K-mesons using QCD sum rules with double dispersion relations. For the B- and D-mesons we also compute the linear quark mass correction, whereas for the K the standard soft theorems prove ...
Matthew Rowe, Roman Zwicky
doaj   +1 more source

Physics at a Higgs Factory [PDF]

open access: yesInternational Journal of Modern Physics A, 2016
I give an overview of the physics potential at possible future [Formula: see text] colliders, including the ILC, FCC-ee, and CEPC. The goal is to explain some of the measurements that can be done in the context of electroweak precision tests and Higgs couplings, to compare some of the options under consideration, and to put the measurements in context ...
openaire   +5 more sources

Renormalization of gluonic leading-twist operators in covariant gauges

open access: yesJournal of High Energy Physics, 2022
We provide the all-loop structure of gauge-variant operators required for the renormalisation of Green’s functions with insertions of twist-two operators in Yang-Mills theory.
Giulio Falcioni, Franz Herzog
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

Unitarity implications of a diboson resonance in the TeV region for Higgs physics [PDF]

open access: yes, 2015
We investigate the implications of a putative new resonance in the TeV region coupled to the weak bosons. By studying perturbative unitarity in longitudinal WW scattering, we find that a weakly coupled spin-1 resonance, that explains the ATLAS diboson ...
G. Cacciapaglia, M. Frandsen
semanticscholar   +1 more source

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

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

Particle Physics after the Higgs [PDF]

open access: yesAnnalen der Physik, 2016
Published by Barth9137 ...
Abramowicz, Halina   +2 more
openaire   +4 more sources

Infrared singularities of QCD scattering amplitudes in the Regge limit to all orders

open access: yesJournal of High Energy Physics, 2018
Scattering amplitudes of partons in QCD contain infrared divergences which can be resummed to all orders in terms of an anomalous dimension. Independently, in the limit of high-energy forward scattering, large logarithms of the energy can be resummed ...
Simon Caron-Huot   +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

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