Results 81 to 90 of about 7,016 (168)

Electroweak Baryogenesis and the Standard Model Effective Field Theory

open access: yes, 2017
We investigate electroweak baryogenesis within the framework of the Standard Model Effective Field Theory. The Standard Model Lagrangian is supplemented by dimension-six operators that facilitate a strong first-order electroweak phase transition and ...
de Vries, Jordy   +3 more
core   +1 more source

Revisiting universal extra-dimension model with gravity mediated decays

open access: yesJournal of High Energy Physics
We explore the collider phenomenology of the fat-brane realization of the Minimal Universal Extra Dimension (mUED) model, where Standard Model (SM) fields propagate in a small extra dimension while gravity accesses additional large extra dimensions. This
Kirtiman Ghosh   +2 more
doaj   +1 more source

On the Validity of the Effective Field Theory Approach to SM Precision Tests

open access: yes, 2016
We discuss the conditions for an effective field theory (EFT) to give an adequate low-energy description of an underlying physics beyond the Standard Model (SM).
Contino, Roberto   +4 more
core   +1 more source

Asymptotically safe extensions of the Standard Model with flavour phenomenology

open access: yes, 2019
We investigate asymptotically safe extensions of the Standard Model with new matter fields arising in the TeV energy range. The new sector contains singlet scalars and vector-like fermions in representations which permit Yukawa interactions with the ...
Hiller, Gudrun   +3 more
core  

Digging Deeper for New Physics in the LHC Data

open access: yes, 2017
In this paper we describe a novel, model-independent technique of "rectangular aggregations" for mining the LHC data for hints of new physics. A typical (CMS) search now has hundreds of signal regions, which can obscure potentially interesting anomalies.
Asadi, Pouya   +4 more
core   +1 more source

Textures of neutrino mass matrix from S 4-flavor symmetry

open access: yesJournal of High Energy Physics
We study a texture of neutrino mass matrix characterized by two constraints consisting of one equality and another antiequality between two elements corresponding to two pairs of the matrix entries.
N. Chamoun, E. I. Lashin
doaj   +1 more source

Radiative corrections relating leptoquark-fermion couplings probed at low and high energy

open access: yesJournal of High Energy Physics
Scalar leptoquarks (LQ) with masses between 2 TeV and 50 TeV are prime candidates to explain deviations between measurements and Standard-Model predictions in decay observables of b-flavored hadrons (“flavor anomalies”).
Innes Bigaran   +2 more
doaj   +1 more source

A proof of concept for matchete: an automated tool for matching effective theories. [PDF]

open access: yesEur Phys J C Part Fields, 2023
Fuentes-Martín J   +4 more
europepmc   +1 more source

Neutrino dipole portal at a high energy μ−collider

open access: yesJournal of High Energy Physics
We study the phenomenology of d = 6 dipole portal operators connecting active and sterile neutrinos at a futuristic muon collider. These operators can be the dominant portal between the Standard Model and the New Physics sector in scenarios in which the ...
Daniele Barducci, Alessandro Dondarini
doaj   +1 more source

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