Results 131 to 140 of about 14,132 (207)

Low-energy supernova constraints on millicharged particles

open access: yesJournal of High Energy Physics
The hot and dense conditions of the supernova core provide an ideal environment for the production of new feebly-interacting particles. Low-energy supernovae, characterized by low explosion energy, are particularly intriguing due to their stringent ...
Changqian Li   +3 more
doaj   +1 more source

Unearthing large pseudoscalar Yukawa couplings with machine learning

open access: yesJournal of High Energy Physics
With the Large Hadron Collider’s Run 3 in progress, the 125GeV Higgs boson couplings are being examined in greater detail, while searching for additional scalars.
Fernando Abreu de Souza   +5 more
doaj   +1 more source

Vector-like tops from first generation quarks: the role of width and coupling chiralities in same-charge production at the LHC

open access: yesJournal of High Energy Physics
In this paper, we tension the scope of the q q ¯ $$ q\overline{q} $$ , gg → T T ¯ $$ T\overline{T} $$ production process against that of the same-charge uu → TT one in searching for Vector-Like Quarks (VLQs) with electromagnetic charge +2/3 at the Large ...
Stefano Moretti   +2 more
doaj   +1 more source

Search for the γZ decay mode of heavy photophobic axion-like particles at the LHC

open access: yesJournal of High Energy Physics
We assume the coupling of Axion-like particle (ALP) to diphoton g aγγ ~ 0 and accomplish detailed analyses for the γZ decay mode of such heavy photophobic ALPs at the high luminosity-Large Hadron Collider (HL-LHC).
Zilong Ding, Ying-nan Mao, Kechen Wang
doaj   +1 more source

A simplified model of Heavy Vector Singlets for the LHC and future colliders

open access: yesJournal of High Energy Physics
We study a simplified model of two colourless heavy vector resonances in the singlet representation of SU(2) L , with zero and unit hypercharge. We discuss mixing with the Standard Model gauge bosons due to electroweak symmetry breaking, semi-analytic ...
Michael J. Baker   +3 more
doaj   +1 more source

Synergies and prospects for early resolution of the neutrino mass ordering. [PDF]

open access: yesSci Rep, 2022
Cabrera A   +25 more
europepmc   +1 more source

Semi-supervised permutation invariant particle-level anomaly detection

open access: yesJournal of High Energy Physics
The development of analysis methods to distinguish potential beyond the Standard Model phenomena in a model-agnostic way can significantly enhance the discovery reach in collider experiments. However, the typical machine learning (ML) algorithms employed
Gabriel Matos   +3 more
doaj   +1 more source

Light scalars within the CP $$ \mathcal{CP} $$ -conserving Aligned-two-Higgs-doublet model

open access: yesJournal of High Energy Physics
In this article we study the possibility that neutral and charged scalars lighter than the 125 GeV Higgs boson might exist within the framework of the CP $$ \mathcal{CP} $$ -conserving Aligned-two-Higgs-doublet model.
Antonio M. Coutinho   +3 more
doaj   +1 more source

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