Results 21 to 30 of about 522 (138)

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

Simplified Dark Matter Models

open access: yesAdvances in High Energy Physics, Volume 2018, Issue 1, 2018., 2018
I review the construction of simplified models for dark matter searches. After discussing the philosophy and some simple examples, I turn the attention to the aspect of the theoretical consistency and to the implications of the necessary extensions of these models.
Enrico Morgante, Farinaldo Queiroz
wiley   +1 more source

A guide to diagnosing colored resonances at hadron colliders

open access: yesJournal of High Energy Physics, 2023
We present a comprehensive study on how to distinguish the properties of heavy dijet resonances at hadron colliders. A variety of spins, chiral couplings, charges, and QCD color representations are considered.
Tao Han   +4 more
doaj   +1 more source

The Discreet Charm of Higgsino Dark Matter: A Pocket Review

open access: yesAdvances in High Energy Physics, Volume 2018, Issue 1, 2018., 2018
We give a brief review of the current constraints and prospects for detection of higgsino dark matter in low‐scale supersymmetry. In the first part we argue, after performing a survey of all potential dark matter particles in the MSSM, that the (nearly) pure higgsino is the only candidate emerging virtually unscathed from the wealth of observational ...
Kamila Kowalska   +2 more
wiley   +1 more source

Mass Spectra and Decay Constants of Heavy‐Light Mesons: A Case Study of QCD Sum Rules and Quark Model

open access: yesAdvances in High Energy Physics, Volume 2018, Issue 1, 2018., 2018
We visited mass spectra and decay constants of pseudoscalar and vector heavy‐light mesons (B, Bs, D, and DS) in the framework of QCD sum rule and quark model. The harmonic oscillator wave function was used in quark model while a simple interpolating current was used in QCD sum rule calculation.
Halil Mutuk, Xian-Wei Kang
wiley   +1 more source

Exclusion Limits on a Scalar Decaying to Photons and Distinguishing Its Production Mechanisms

open access: yesAdvances in High Energy Physics, Volume 2018, Issue 1, 2018., 2018
LHC run‐II has a great potential to search for new resonances in the diphoton channel. Latest 13 TeV data already put stringent limits on the cross sections in the diphoton channel assuming the resonance is produced through the gluon‐gluon fusion. Many beyond the Standard Model (SM) theories predict TeV‐scale scalars, which copiously decay to diphotons.
Tanumoy Mandal, Luca Stanco
wiley   +1 more source

LHC Probes of TeV‐Scale Scalars in SO(10) Grand Unification

open access: yesAdvances in High Energy Physics, Volume 2017, Issue 1, 2017., 2017
We investigate the possibility of TeV‐scale scalars as low energy remnants arising in the nonsupersymmetric SO(10) grand unification framework where the field content is minimal. We consider a scenario where the SO(10) gauge symmetry is broken into the gauge symmetry of the Standard Model (SM) through multiple stages of symmetry breaking, and a colored
Ufuk Aydemir   +2 more
wiley   +1 more source

Electroweak spin-1 resonances in Composite Higgs models

open access: yesJournal of High Energy Physics
Composite Higgs models predict the existence of various bound states. Among these are spin-1 resonances. We investigate models containing SU(2) L × SU(2) R as part of the unbroken subgroup in the new strong sector. These models predict that there are two
R. Caliri   +4 more
doaj   +1 more source

Visible GeV ALP from TeV Vector‐Like Leptons

open access: yesFortschritte der Physik, Volume 73, Issue 3, March 2025.
Abstract A model is presented where a GeV axion‐like‐particle (ALP) is predicted in a large portion of the parameter space due to the presence of explicit Peccei–Quinn (PQ) symmetry‐breaking terms in an exotic leptonic sector. The latter provides a solution to the muon g−2$g-2$ anomaly, within the framework of the Linear Seesaw neutrino mechanism.
Arturo de Giorgi   +2 more
wiley   +1 more source

Gauge‐Singlet Vector‐Like Fermion Dark Matter, LHC Diphoton Rate, and Direct Detection

open access: yesAdvances in High Energy Physics, Volume 2017, Issue 1, 2017., 2017
We study a gauge‐singlet vector‐like fermion hidden sector dark matter model, in which the communication between the dark matter and the visible standard model sector is via the Higgs‐portal scalar‐Higgs mixing and also via a hidden sector scalar with loop‐level couplings to two gluons and also to two hypercharge gauge bosons induced by a vector‐like ...
Shrihari Gopalakrishna   +2 more
wiley   +1 more source

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