16 Result(s)
within
Jose Wudka
Elementary Particles, Quantum Field Theory
Quantum Physics
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Article
Open AccessOptimal determination of new physics couplings: a comparative study
We study the determination of new physics (NP) parameters using the optimal observable technique (OOT) in situations where the standard model (SM) dominates over the NP effects, and when the NP dominates over ...
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Article
Open AccessAssociated production of Higgs and single top at the LHC in presence of the SMEFT operators
We analyse the single top production in association with the Higgs at the Large Hadron Collider (LHC) using Standard Model (SM) effective operators upto dimension six. We show that the presence of effective op...
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Article
Open AccessNeutrino masses and self-interacting dark matter with mass mixing Z − Z′ gauge portal
New light gauge bosons can affect several low-energy experiments, such as atomic parity violation or colliders. Here, we explore the possibility that a dark sector is charged under a new U(1) gauge symmetry, a...
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Article
Open AccessProbing heavy charged fermions at e+e− collider using the optimal observable technique
In this work we study the production of color-neutral and singly-charged heavy leptons at the proposed International Linear Collider. We use the optimal observable technique to determine the statistical accura...
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Open AccessEffective field theory analysis of dark matter-standard model interactions with spin one mediators
We analyze interactions between dark matter and standard model particles with spin one mediators in an effective field theory framework. In this paper, we are considering dark particles masses in the range fro...
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Open AccessDark matter as a remnant of SQCD inflation
We propose a strongly coupled supersymmetric gauge theory that can accommodate both the inflation (in the form of generalized hybrid inflation) and dark matter (DM). In this set-up, we identify the DM as the G...
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Article
Open AccessA realistic model for dark matter interactions in the neutrino portal paradigm
We discuss a simple extension of the Standard Model (SM) that provides an explicit realization of the dark-matter (DM) neutrino-portal paradigm. The dark sector is composed of a scalar Φ and a Dirac fermion Ψ,...
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Open AccessEffective theories for Dark Matter interactions and the neutrino portal paradigm
In this article we discuss a general effective-theory description of a multicomponent dark sector with an unspecified non-trivial symmetry and its interactions with the Standard Model generated by the exchange...
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Article
Open AccessErratum to: Multi-scalar-singlet extension of the standard model — The case for dark matter and an invisible Higgs boson
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Article
Open AccessThick-brane cosmology
We search for time-dependent solutions for the 5-dimensional system of a scalar field canonically coupled to gravity. Time-independent and time-dependent scalar field configurations with the most general homog...
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Article
Open AccessPionic dark matter
We study a phenomenological model where the lightest dark matter (DM) particles are the pseudo-Goldstone excitations associated with a spontaneously broken symmetry, and transforming linearly with respect to a...
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Open AccessTwo-component dark matter
We study an extension of the Standard Model (SM) with two interacting cold Dark Matter (DM) candidates: a neutral Majorana fermion (ν) and a neutral scalar singlet (φ). The scalar φ interacts with the SM through ...
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Article
Effective Lagrangian approach to neutrinoless double beta decay and neutrino masses
Neutrinoless double beta (0νββ) decay can in general produce electrons of either chirality, in contrast with the minimal Standard Model (SM) extension with only the addition of the Weinberg operator, which predic...
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Article
A realistic model of neutrino masses with a large neutrinoless double beta decay rate
The minimal Standard Model extension with the Weinberg operator does accommodate the observed neutrino masses and mixing, but predicts a neutrinoless double beta (0νββ) decay rate proportional to the effective el...
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Article
Multi-scalar-singlet extension of the standard model — The case for dark matter and an invisible Higgs boson
We consider a simple extension of the Standard Model by the addition of N real scalar gauge singlets \( \overrightarrow \varphi \) ...
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Article
Open AccessThe bilinear formalism and the custodial symmetry in the two-Higgs-doublet model
We present a simple and transparent analysis of custodial symmetry in the Two-Higgs-Doublet Model adopting the bilinear formalism for the Higgs potential. The method allows to derive basis-independent, necessa...
