84 citations · 700 across the 55 of their papers we have counts for
25 papers · 1 filter
Can the FCC-hh prove the B-L gauge symmetry?
Farinaldo S. Queiroz, J. Zamora-Saa, Ricardo C. Silva +1
We present a phenomenological study of the discovery potential at the FCC-hh for a new heavy neutral vector boson, Z', predicted by the gauge symmetry. Focusing on the…
Probing the existence of a new charged vector boson decaying into heavy neutral leptons using ultra-peripheral heavy ion collisions at ATLAS
Y. M. Oviedo-Torres, Sebastian Tapia, J. Zamora-Saa
In this paper we explore the potential of Ultra-peripheral Collisions at the LHC to investigate new physics, focusing on the production of new charged vector bosons tha…
LHC and HL-LHC Bounds on Visible and Invisible Decays in the Model
Farinaldo S. Queiroz, Jilberto Zamora-Saa, Ricardo C. Silva +1
In this work, we use publicly available data from ATLAS collaboration collected at LHC run 2 at a center-of-mass energy of TeV with an integrated luminosity of $139 fb…
Search for sub-GeV Scalars in collisions
D. Cogollo, Y. M. Oviedo-Torres, Farinaldo S. Queiroz +2
Light scalars that couple to leptons are common figures in beyond the Standard Model endeavors. Considering a scalar that has universal and couplings to leptons only, we compute th…
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…
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…
Searching for a Leptophilic Z' and a 3-3-1 symmetry at CLIC
A. Alves, G. Gil da Silveira, V. P. Gonçalves +3
We derive the discovery potential of a leptophilic Z', and a Z' rising from a symmetry at the Compact Linear Collider (CLIC), which is planned…
Unveiling the Heavy Neutrino Nature at LHCb
G. A. Vasquez, Jilberto Zamora-Saa
In this work, we study the lepton number violating Bc meson decays via one intermediate on-shell heavy neutrino. The specific studied process is $B_{c}^{+} \to μ^{+} \ N \to μ^{+}…
Probing Left-handed Heavy Neutral Leptons in the Vector Scotogenic Model
Paulo Areyuna C., Jilberto Zamora-Saa, Alfonso R. Zerwekh
In this work, we consider an extension to the Standard Model composed by a Massive Vector Doublet under SU(2) and a Left-handed Heavy Neutral Lepton. We study the production of…
Discovering heavy neutrino oscillations in rare Bc meson decays at HL-LHCb
Sebastian Tapia, Marcelo Vidal-Bravo, Jilberto Zamora-Saa
In this work, we study the lepton flavor and lepton number violating meson decays via two intermediate on-shell Majorana neutrinos into two charged leptons and a char…
Exploring CP-violation, via heavy neutrino oscillations, in rare B meson decays at Belle II
Gorazd Cvetic, C. S. Kim, Sebastian Mendizabal +1
In this article we study the rare B-meson decay via two on-shell almost-degenerate Majorana Heavy Neutrinos, into two charged leptons and two pseudoscalar mesons ($B^{\pm} \to D^0…
Searching for a Sterile Neutrino in Tau Decays at B-factories
C. O. Dib, J. C. Helo, M. Nayak +3
The phenomenon of neutrino flavor oscillations motivates searches for sterile neutrinos in a broad range of masses and mixing-parameter values. A sterile neutrino that mixes pr…
Exploring CP-Violating heavy neutrino oscillations in rare tau decays at Belle II
Sebastian Tapia, Jilberto Zamora-Saá
In this work, we study the lepton number violating tau decays via two intermediate on-shell Majorana neutrinos into two charged pions, and a charged lepton $τ^{\pm} \to π^{\p…
Measuring the heavy neutrino oscillations in rare W boson decays at the Large Hadron Collider
Gorazd Cvetic, Arindam Das, Sebastian Tapia +1
Majorana neutrinos in the seesaw model can have sizable mixings through which they can be produced at the Large Hadron Collider (LHC) and show a remarkable Lepton Number Violating…
Probing heavy neutrino oscillations in rare W boson decays
Gorazd Cvetic, Arindam Das, Jilberto Zamora-Saa
In this work, we study the lepton number violating W boson and top quark decays via intermediate on-shell Majorana neutrinos Nj into three charged leptons and a light neutrino. We…
Probing Leptogenesis
E. J. Chun, G. Cvetič, P. S. B. Dev +12
The focus of this chapter lies on the possible experimental tests of leptogenesis scenarios. We consider both leptogenesis generated from oscillations, as well as leptogenesis from…
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…
Resonant CP violation in rare tau decay
Jilberto Zamora-Saa
In this work, we study the lepton number violating tau decays via intermediate on-shell Majorana neutrinos into two scalar mesons and a lepton $τ^{\pm} \to M_1{}^{\pm} N_j \t…
Solar neutrinos, helicity effects and new affine gravity with torsion II
David Alvarez-Castillo, Diego Julio Cirilo-Lombardo, Jilberto Zamora-Saa
The cross section for neutrino helicity spin-flip obtained from a new f(R, T) model of gravitation with dynamic torsion field introduced by one of the authors in [1], is phenomenol…
Rare meson decays with three pairs of quasi-degenerate heavy neutrinos
Gaston Moreno, Jilberto Zamora-Saa
We consider a scenario of Low Scale Seesaw where the masses of its heavy Majorana neutrinos are arranged in a pattern of three pairs of quasi degenerate ones, in the range of O(1-6…
Oscillation of heavy sterile neutrino in decay of
Gorazd Cvetic, C. S. Kim, Reinhart Kogerler +1
In a scenario with two almost mass degenerate heavy sterile Majorana neutrinos with a mass GeV, we present the semileptonic decay widths of heavy charged pseudoscalars suc…
Corrections to Higgs width decay into a fermion pair from gravitational torsion
Oscar Castillo-Felisola, Bastian Diaz Saez, Felipe Rojas +2
We consider the change of the Higgs width decay into a fermion pair with respect to the standard model, due to the four-fermion contact interaction coming from the existence of gra…
Probing the Majorana neutrinos and their CP violation in decays of charged scalar mesons
Gorazd Cvetic, Claudio Dib, C. S. Kim +1
Some of the outstanding questions of particle physics today concern the neutrino sector, in particular whether there are more neutrinos than those already known and whether they ar…
CP violation in lepton number violating semihadronic decays of
Gorazd Cvetic, C. S. Kim, Jilberto Zamora-Saa
We study the CP violation in lepton number violating meson decays , where and are pseudoscalar mesons, $M=K, D, D_s, B,…