Results 41 to 50 of about 40,684 (169)

A procedure g5anchor to anchor γ 5 in Feynman diagrams for the Standard Model

open access: yesJournal of High Energy Physics
We present a procedure g5anchor to anchor γ 5 in the definition of a Dirac trace with γ 5 in Dimensional Regularization (DR) in Feynman diagrams for the Standard Model, based on a recent revision of the works by Kreimer, Gottlieb and Donohue.
Long Chen
doaj   +1 more source

Three-loop master integrals for the Higgs boson self-energy with internal top-quarks and W-bosons

open access: yesJournal of High Energy Physics, 2022
We consider the full set of master integrals with internal top-and W-propagators contributing to the three-loop Higgs self-energy diagrams of order O $$ \mathcal{O} $$ (α 2 α s ).
Ekta Chaubey   +2 more
doaj   +1 more source

Massive Feynman integrals and electroweak corrections

open access: yes, 2015
There are steady advances in the calculation of electroweak corrections to massive scattering problems at colliders, from the very beginning in the nineteen seventies until contemporary developments.
Gluza, Janusz, Riemann, Tord
core   +1 more source

Simulation of a Three‐Nucleons System Transition on Quantum Circuits

open access: yesAdvanced Quantum Technologies, Volume 8, Issue 5, May 2025.
A general procedure is presented to calculate the transition probability for two nuclear states and a transition operator. The ground state is approximated through the variational quantum eigensolver and the first excited one using more sophisticated variational algorithms.
Luca Nigro, Carlo Barbieri, Enrico Prati
wiley   +1 more source

Two-loop mixed QCD-electroweak amplitudes for Z+jet production at the LHC: bosonic corrections

open access: yesJournal of High Energy Physics
We present a calculation of the bosonic contribution to the two-loop mixed QCD-electroweak scattering amplitudes for Z-boson production in association with one hard jet at hadron colliders.
Piotr Bargieła   +3 more
doaj   +1 more source

Supersymmetric and non-supersymmetric models without catastrophic Goldstone bosons [PDF]

open access: yes, 2017
The calculation of the Higgs mass in general renormalisable field theories has been plagued by the so-called "Goldstone Boson Catastrophe", where light (would-be) Goldstone bosons give infra-red divergent loop integrals.
Braathen, Johannes   +2 more
core   +4 more sources

Dark Dimension With (Little) Strings Attached

open access: yesFortschritte der Physik, Volume 73, Issue 4, April 2025.
Abstract A relation between dark energy and the scale of new physics in weakly coupled string theory is motivated. This mixing between infrared and ultraviolet physics leads to a unique corner for real‐world phenomenology: barring fine‐tunings, the authors are naturally led to the “dark dimension” scenario, a single mesoscopic extra dimension of micron
Ivano Basile, Dieter Lüst
wiley   +1 more source

Precision phenomenology at multi-TeV muon colliders

open access: yesJournal of High Energy Physics
Future lepton colliders, such as those based on linear e + e − or circular μ + μ − accelerators, are expected to attain centre-of-mass energies in the multi-TeV range.
Stefano Frixione   +3 more
doaj   +1 more source

Baikov representations, intersection theory, and canonical Feynman integrals

open access: yesJournal of High Energy Physics, 2022
The method of canonical differential equations is an important tool in the calculation of Feynman integrals in quantum field theories. It has been realized that the canonical bases are closely related to d-dimensional d log-form integrands. In this work,
Jiaqi Chen   +4 more
doaj   +1 more source

Atomic Parity Nonconservation: Electroweak Parameters and Nuclear Structure

open access: yes, 1992
There have been suggestions to measure atomic parity nonconservation (PNC) along an isotopic chain, by taking ratios of observables in order to cancel complicated atomic structure effects.
A. Krasznahorkay   +55 more
core   +2 more sources

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