Results 51 to 60 of about 294 (136)

Composite 2HDM with singlets: a viable dark matter scenario

open access: yesJournal of High Energy Physics, 2019
We study the non-minimal composite Higgs model with global symmetry SO(7) broken to SO(5) × SO(2). The model results in a composite Two-Higgs doublet model (2HDM) equipped with two extra singlets, the lightest of which can be a viable dark matter ...
Alessandro Davoli   +3 more
doaj   +1 more source

Emerging jets displaced into the future

open access: yesJournal of High Energy Physics, 2022
We examine the potential of future long-lived particle experiments to probe dark QCD models that feature Emerging Jets. The core of this analysis focuses on the transverse detectors AL3X, ANUBIS, CODEX-b, and MATHUSLA as they cover the most relevant ...
Paul Archer-Smith   +2 more
doaj   +1 more source

Neutrino Magnetic Moment in the Doublet‐Singlet Leptoquark Model

open access: yesAdvances in High Energy Physics, Volume 2026, Issue 1, 2026.
The transition magnetic moment for Majorana neutrinos is studied in a simple extension of the Standard Model. This extension incorporates two scalar Leptoquarks S1 and R~2 with quantum numbers 3¯,113,/ and (3, 2, 1/6), respectively. It is found that these Leptoquarks generate a sizable transition magnetic moment, particularly when the quark bottom is ...
R. Sánchez-Vélez, Theocharis Kosmas
wiley   +1 more source

Probing the Top Quark Flavour‐Changing Neutral Current at a Future Electron‐Positron Collider

open access: yesAdvances in High Energy Physics, Volume 2014, Issue 1, 2014., 2014
We present a study to examine the sensitivity of a future e−e+ collider to the anomalous top flavour‐changing neutral current (FCNC) to the gluon. To separate signal from background a multivariate analysis is performed on top quark pair and background events, where one top quark is considered to follow the dominant standard model (SM) decay, t → Wb ...
Hoda Hesari   +4 more
wiley   +1 more source

Anarchy with linear and bilinear interactions

open access: yesJournal of High Energy Physics, 2017
Composite Higgs models with anarchic partial compositeness require a scale of new physics O 10 − 100 $$ \mathcal{O}\left(10-100\right) $$ TeV, with the bounds being dominated by the dipole moments and ϵ K .
Leandro Da Rold
doaj   +1 more source

Lepton flavor violation in the Littlest Higgs Model with T parity realizing an inverse seesaw

open access: yesJournal of High Energy Physics, 2022
We study lepton flavor violation (LFV) within the Littlest Higgs Model with T parity (LHT) realizing an inverse seesaw (ISS) mechanism of type I. With respect to the traditional LHT, there appear new 𝒪(10 TeV) Majorana neutrinos, driving LFV. For τ → ℓℓ ′
Iván Pacheco, Pablo Roig
doaj   +1 more source

Sleeping Beauty and the demands of non‐ideal rationality

open access: yesNoûs, Volume 59, Issue 4, Page 1072-1092, December 2025.
Abstract If an agent can't live up to the demands of ideal rationality, fallback norms come into play that take into account the agent's limitations. A familiar human limitation is our tendency to lose information. How should we compensate for this tendency?
Wolfgang Schwarz
wiley   +1 more source

Dynamical Electroweak Symmetry Breaking with a Heavy Fermion in Light of Recent LHC Results

open access: yesAdvances in High Energy Physics, Volume 2013, Issue 1, 2013., 2013
The recent announcement of a discovery of a possible Higgs‐like particle—its spin and parity are yet to be determined—at the LHC with a mass of 126 GeV necessitates a fresh look at the nature of the electroweak symmetry breaking, in particular if this newly‐discovered particle will turn out to have the quantum numbers of a Standard Model Higgs boson ...
Pham Q. Hung, George Wei-Shu Hou
wiley   +1 more source

Ultra Minimal Technicolor and its Dark Matter TIMP [PDF]

open access: yes, 2008
We introduce an explicit model with technifermion matter transforming according to multiple representations of the underlying technicolor gauge group. The model features simultaneously the smallest possible value of the naive S parameter and the smallest
Sannino, Francesco; id_orcid   +4 more
core   +1 more source

Flavour anomalies after the R K ∗ measurement

open access: yesJournal of High Energy Physics, 2017
The LHCb measurement of the μ/e ratio R K ∗ indicates a deficit with respect to the Standard Model prediction, supporting earlier hints of lepton universality violation observed in the R K ratio.
Guido D’Amico   +6 more
doaj   +1 more source

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