76 citations · 529 across the 60 of their papers we have counts for
55 papers · 1 filter
Disappearing Tracks from Electroweak Vector Dark Matter at the LHC
Fabián Hernández-Pinto, Patricio Escalona, Alfonso Zerwekh
We study the disappearing-track signature of a spin-1 minimal dark matter candidate transforming in the real five-dimensional representation of with vanishing hypercharge…
Minimal Scale-Invariant Dark Matter
Alexander Belyaev, Roman Pasechnik, Rishav Roshan +1
We study the minimal classically scale-invariant extension of the Standard Model, containing a single -stabilised real scalar singlet whose mass is not an independent…
Phenomenology of an Extended Higgs Doublet Model with Family Symmetry
A. E. Cárcamo Hernández, Daniel Salinas-Arizmendi, Jonatan Vignatti +1
In order to explain the mass hierarchy and mixing pattern in the leptonic sector, we explore an extension of the Standard Model whose scalar sector includes one active and two iner…
Vector Dark Matter from the 5-Dimensional Representation of
Patricio Escalona, Sebastián Acevedo, Paulo Areyuna +3
The introduction of electroweak multiplets that transform under any representation of the standard gauge group suggests the existence of electrically neutral stable parti…
A common framework for fermion mass hierarchy, leptogenesis and dark matter
Carolina Arbeláez, A. E. Cárcamo Hernández, Claudio Dib +3
In this work, we explore an extension of the Standard Model designed to elucidate the fermion mass hierarchy, account for the dark matter relic abundance, and explain the observed…
Fermion Dark Matter in the Vector Scotogenic Model: A Survey of Signatures
Paulo Areyuna C., Jilberto Zamora-Saa, Alfonso R. Zerwekh
In this work, we have studied the Vector Scotogenic Model in the context of the Dark Matter problem. Due to unitarity considerations, we have focused on the scenario with fermion d…
Vector Dark Matter in the Fundamental Representation of : Sommerfeld Enhancement and Indirect Detection
Sebastián Acevedo-Espinoza, Amanda Rodríguez, Alfonso R. Zerwekh
In this work, we study an extension of the Standard Model that includes a new massive vector field in the fundamental representation of . The neutral component of this f…
Mono-Higgs and Mono- Production in the Minimal Vector Dark Matter Model
Gonzalo Benítez-Irarrázabal, Alfonso R. Zerwekh
The Minimal Vector Dark Matter is a viable realization of the minimal dark matter paradigm. It extends the Standard Model by the inclusion of a vector matter field in the adjoint r…
Introducing Model Benchmark Analysis for dark matter models with isomorphic lagrangians
Paulo Areyuna C., Jilberto Zamora-Saa, Alfonso R. Zerwekh
In this work, we propose a novel approach to particle physics phenomenology, which we dubbed as model benchmark analysis. We consider models that provide vertices with similar topo…
On the Role of LHC and HL-LHC in Constraining Flavor Changing Neutral Currents
S. Kovalenko, A. S. de Jesus, A. R. Zerwekh +5
The Standard Model (SM) has no flavor-changing neutral current (FCNC) processes at the tree level. Therefore, processes featuring FCNC in new physics are tightly constrained by dat…
Probing Left-handed Heavy Neutral Leptons in the Vector Scotogenic Model
Paulo Areyuna C., Jilberto Zamora-Saa, Alfonso R. Zerwekh
In this work, we consider an extension to the Standard Model composed by a Massive Vector Doublet under SU(2) and a Left-handed Heavy Neutral Lepton. We study the production of…
Fermion Singlet Dark Matter in a Pseudoscalar Dark Matter Portal
Bastián Díaz Sáez, Patricio Escalona, Sebastián Norero +1
We explore a simple extension to the Standard Model containing two gauge singlets: a Dirac fermion and a real pseudoscalar. In some regions of the parameter space both singlets are…
Dark Matter from a Vector Field in the Fundamental Representation of
Bastian Díaz Sáez, Felipe Rojas-Abatte, Alfonso R. Zerwekh
We explore an extension to the Standard Model which incorporates a vector field in the fundamental representation of as the only non-standard degree of freedom. This kind…
Scalar resonance in a top partner model
Sebastián Norero, Juan Yepes, Alfonso Zerwekh
The phenomenology entailed by a scalar resonance in a top partner model is analysed here in a Composite Higgs formalism. Heavy scalar resonances production and their decays…
Minimal Spin-one Isotriplet Dark Matter
Alexander Belyaev, Giacomo Cacciapaglia, James McKay +2
In this work we present a simple extension of the Standard Model that contains, as the only new physics component, a massive spin-one matter field in the adjoint representation of…
A Dark Vector Resonance at CLIC
Constanza Callender, Alfonso R. Zerwekh
One of the main problems in Particle Physics is to understand the origin and nature of Dark Matter. An exciting possibility is to consider that the Dark Matter belongs to a new com…
Generating lepton masses and mixings with a heavy vector doublet
A. E. Cárcamo Hernández, Jonatan Vignatti, Alfonso Zerwekh
We construct two viable extensions of the SM with a heavy vector in the fundamental representation and nine SM singlet scalar fields, consistent with the c…
Modelling top partner-vector resonance phenomenology
Juan Yepes, Alfonso Zerwekh
We have analysed the observable consequences of the interactions of spin-1 resonances coupled to the invariant fermionic currents that arise in an Composite Higgs set-up. T…
The Linear BESS Model at the LHC
Jose Urbina, Alfonso R. Zerwekh
In this work we consider the Linear BESS model at the LHC. This model can be seen as an adequate benchmark for exploring the phenomenological consequences of a composite Higgs sect…
Top partner-resonance interplay in a composite Higgs framework
Juan Yepes, Alfonso Zerwekh
Guided us by the scenario of weak scale naturalness and the possible existence of exotic resonances, we have explored in a Composite Higgs set-up the interplay among three…
An i2HDM Strongly Coupled to a non-Abelian Vector Resonance
Felipe Rojas-Abatte, Maria Luisa Mora, Jose Urbina +1
We study the possibility of a Dark Matter candidate having its origin in an extended Higgs sector which, at least partially, is related to a new strongly interacting sector. More c…
Constraints on vector resonances from a strong Higgs sector
A. E. Cárcamo Hernández, Bastián Díaz Sáez, Claudio O. Dib +1
We consider a scenario of a composite Higgs arising from a strong sector. We assume that the lowest lying composite states are the Higgs scalar doublet and a massive vector triplet…
Corrections to (pseudo)scalars decay into a fermion pair from gravitational torsion
Felipe Rojas Abatte, Jilberto Zamora-Saa, Oscar Castillo-Felisola +2
We study the contribution of the torsion-descendent four-fermion contact interaction to the decay width of a neutral (pseudo)scalar field into a fermion pair. This new interaction…
Higgs boson coupling to a new strongly interacting sector
A. E. Cárcamo Hernández, Claudio O. Dib, Alfonso R. Zerwekh
In the framework of strongly interacting dynamics for electroweak symmetry breaking, heavy composite particles may arise and cause observable effects, as they should couple strongl…