Results 61 to 70 of about 322,979 (191)

Measurement of the cross section of e + e − → Ξ − Ξ ¯ + $$ {e}^{+}{e}^{-}\to {\Xi}^{-}{\overline{\Xi}}^{+} $$ at center-of-mass energies between 3.510 and 4.843 GeV

open access: yesJournal of High Energy Physics, 2023
Using e + e − collision data corresponding to a total integrated luminosity of 12.9 fb −1 collected with the BESIII detector at the BEPCII collider, the exclusive Born cross sections and the effective form factors of the reaction e + e − → Ξ − Ξ ...
The BESIII collaboration   +623 more
doaj   +1 more source

Top Quark Flavor Changing Couplings at a Muon Collider

open access: yesAdvances in High Energy Physics, Volume 2024, Issue 1, 2024.
There is growing interest in the development of a muon collider that would make it possible to produce lepton collisions at energies of several TeV. Among others, there can be significant contributions to electroweak gauge boson, Higgs boson, and top quark physics.
Daniel Ake   +3 more
wiley   +1 more source

Hint for a Minimal Interaction Length in e+e−⟶γγ Annihilation in Total Cross Section of Center‐of‐Mass Energies 55‐207 GeV

open access: yesAdvances in High Energy Physics, Volume 2024, Issue 1, 2024.
The measurements of the total cross section of the e+e−⟶γγ(γ) reaction from the VENUS, TOPAS, OPAL, DELPHI, ALEPH, and L3 collaborations, collected between 1989 and 2003, are used to perform a χ2 test to validate the current quantum electrodynamics (QED) theory and search for possible deviations with the direct contact term annihilation. By observing a
Yutao Chen   +3 more
wiley   +1 more source

Which EFT

open access: yesJournal of High Energy Physics, 2019
We classify effective field theory (EFT) deformations of the Standard Model (SM) according to the analyticity property of the Lagrangian as a function of the Higgs doublet H.
Adam Falkowski, Riccardo Rattazzi
doaj   +1 more source

Pinning down the gauge boson couplings in WWγ production using forward proton tagging

open access: yesJournal of High Energy Physics, 2020
In this paper, we explore the potential of the LHC to measure the rate of pp → p WWγ p process, also to probe the new effective couplings contributing to the WWγ and WWγγ vertices.
Seddigheh Tizchang, Seyed Mohsen Etesami
doaj   +1 more source

Radiative corrections to decay branching ratios of the CP-odd Higgs boson in two Higgs doublet models

open access: yesNuclear Physics B, 2023
We calculate radiative corrections to decay rates of CP-odd Higgs boson A for various decay modes in the four types of two Higgs doublet models with the softly broken discrete Z2 symmetry.
Masashi Aiko   +2 more
doaj  

The Mass of the Heavy Axion $η_6$ [PDF]

open access: yesarXiv, 1993
If electroweak dynamical symmetry breaking is due to a chiral condensate of color sextet quarks, dynamics analagous to ``walking technicolor'' will enhance the condensate by orders of magnitude compared to the electroweak chiral scale. This enhancement compensates for the exponential suppression of electroweak scale color instanton interactions.
arxiv  

Addressing the B-physics anomalies in a fundamental Composite Higgs model

open access: yesJournal of High Energy Physics, 2018
I present a model addressing coherently the naturalness problem of the electroweak scale and the observed pattern of deviations from the Standard Model in semileptonic decays of B mesons.
David Marzocca
doaj   +1 more source

Two-loop Corrections for Electroweak Processes [PDF]

open access: yesarXiv, 1995
Theoretical uncertainties affecting electroweak observables are reviewed and the relevance of two-loop electroweak radiative corrections for the precision tests of the Standard Model is discussed.
arxiv  

The Nobel history of computational chemistry. A personal perspective

open access: yes
Journal of Computational Chemistry, Volume 45, Issue 22, Page 1921-1935, August 15, 2024.
Russell J. Boyd
wiley   +1 more source

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