Results 1 to 10 of about 29,834,971 (168)

Simplified models for resonant neutral scalar production with missing transverse energy final states

open access: yesJournal of High Energy Physics, 2022
Additional Higgs bosons appear in many extensions of the Standard Model (SM). While most existing searches for additional Higgs bosons concentrate on final states consisting of SM particles, final states containing beyond the SM (BSM) particles play an ...
Henning Bahl   +2 more
doaj   +2 more sources

Quantum detection of new physics in top-quark pair production at the LHC

open access: yesJournal of High Energy Physics
The recent observation of entanglement between top and anti-top quarks at the LHC opens the way to interpreting collider data with quantum information tools. In this work we investigate the relevance of quantum observables in searches of new physics.
Fabio Maltoni   +3 more
doaj   +2 more sources

Neutrinoless double beta decay in multiple isotopes for fingerprints identification of operators and models

open access: yesJournal of High Energy Physics
Neutrinoless double beta (0νββ) decay is the most promising way to determine whether neutrinos are Majorana particles. There are many experiments based on different isotopes searching for 0νββ decay.
Shao-Long Chen, Yu-Qi Xiao
doaj   +2 more sources

Mapping the SMEFT to discoverable models

open access: yesJournal of High Energy Physics, 2022
The matching of specific new physics scenarios onto the SMEFT framework is a well-understood procedure. The inverse problem, the matching of the SMEFT to UV scenarios, is more difficult and requires the development of new methods to perform a systematic ...
Ricardo Cepedello   +3 more
doaj   +1 more source

Asymmetric leptoquark pair production at LHC

open access: yesJournal of High Energy Physics, 2023
We investigate asymmetric leptoquark pair production mechanism at the Large Hadron Collider to advocate its potential relevance to establish reliable constraints on the leptoquark parameter space and its ability to aid in correct identification of these ...
Ilja Doršner, Ajla Lejlić, Shaikh Saad
doaj   +1 more source

dE/dx from boosted long-lived particles

open access: yesJournal of High Energy Physics, 2022
At colliders massive long-lived charged particles could be revealed through their anomalously large ionisation energy loss dE/dx. In this paper we explore a class of scenarios in which the LLPs are particularly boosted, owing to production from the decay
Gian F. Giudice   +2 more
doaj   +1 more source

The role of vector boson fusion in the production of heavy vector triplets at the LHC and HL-LHC

open access: yesJournal of High Energy Physics, 2022
We clarify the role of vector boson fusion (VBF) in the production of heavy vector triplets at the LHC and the HL-LHC. We point out that the presence of VBF production leads to an unavoidable rate of Drell-Yan (DY) production and highlight the subtle ...
Michael J. Baker   +3 more
doaj   +1 more source

One-loop matching of scotogenic model onto standard model effective field theory up to dimension 7

open access: yesJournal of High Energy Physics, 2022
The scotogenic neutrino seesaw model is a minimal extension of the standard model with three ℤ 2-odd right-handed singlet fermions N and one ℤ 2-odd Higgs doublet η that can accommodate the tiny neutrino mass and provide a dark matter candidate in a ...
Yi Liao, Xiao-Dong Ma
doaj   +1 more source

Simulation-based anomaly detection for multileptons at the LHC

open access: yesJournal of High Energy Physics, 2023
Decays of Higgs boson-like particles into multileptons is a well-motivated process for investigating physics beyond the Standard Model (SM). A unique feature of this final state is the precision with which the SM is known.
Katarzyna Krzyzanska, Benjamin Nachman
doaj   +1 more source

Radiative neutrino masses and the Cohen-Kaplan-Nelson bound

open access: yesJournal of High Energy Physics, 2023
Recently, an increasing interest in UV/IR mixing phenomena has drawn attention to the range of validity of standard quantum field theory. Here we explore the consequences of such a limited range of validity in the context of radiative models for neutrino
Patrick Adolf   +2 more
doaj   +1 more source

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