782 citations · 2.5k across the 51 of their papers we have counts for
44 papers · 1 filter
Dark Matter from a Radiative Inverse Seesaw Majoron Model
Cesar Bonilla, A. E. Cárcamo Hernández, Bastián Díaz Sáez +2
We propose a Majoron-like extension of the Standard Model with an extra global -symmetry where neutrino masses are generated through an inverse seesaw mechanism at the 1-lo…
Fermion mass hierarchy in an extended left-right symmetric model
Cesar Bonilla, A. E. Cárcamo Hernández, Sergey Kovalenko +3
We present a Left-Right symmetric model that provides an explanation for the mass hierarchy of the charged fermions within the framework of the Standard Model. This explanation is…
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…
Neutrino oscillations in Quantum Field Theory
Sergey Kovalenko, Fedor Simkovic
We propose a Quantum Field Theory (QFT) approach to neutrino oscillations in vacuum. The neutrino emission and detection are identified with the charged-current vertices of a singl…
Flavor changing interactions confronted with meson mixing and hadron colliders
A. E. Cárcamo Hernández, L. Duarte, A. S. de Jesus +5
We have witnessed some flavor anomalies appeared in the past years, and explanations based on extended gauge sectors are among the most popular solutions. These beyond the Standard…
How many 1-loop neutrino mass models are there?
Carolina Arbeláez, Ricardo Cepedello, Juan Carlos Helo +2
It is well-known that at tree-level the d=5 Weinberg operator can be generated in exactly three different ways, the famous seesaw models. In this paper we study the related questio…
Constraining 3-3-1 Models at the LHC and Future Hadron Colliders
A. Alves, L. Duarte, S. Kovalenko +3
In this work, we derive lower mass bounds on the Z' gauge boson based on the dilepton data from LHC with 13 TeV of center-of-mass energy, and forecast the sensitivity of the High-L…
Scotogenic neutrino masses with gauged matter parity and gauge coupling unification
A. E. Cárcamo Hernández, Chandan Hati, Sergey Kovalenko +2
Building up on previous work we propose a Dark Matter (DM) model with gauged matter parity and dynamical gauge coupling unification, driven by the same physics responsible for scot…
RGE effects on the LFV scale from meson decays
Marcela González, Sergey Kovalenko, Nicolás A. Neill +1
We consider the lepton-flavor violating (LFV) lepton-quark dimension-6 operators and analyze their contributions to the LFV leptonic decays of vector, pseudoscalar, and scalar neut…
The interpolating formula for the -decay half-life in the case of light and heavy neutrino mass mechanisms
A. Babič, S. Kovalenko, M. I. Krivoruchenko +1
We revisit the "interpolating formula" proposed in our previous publication. It allows one to calculate the neutrinoless double beta decay (-decay) half-life for arbitrary ne…
Deep inelastic and conversion in the NA64 experiment at the CERN SPS
Sergei Gninenko, Sergey Kovalenko, Serguei Kuleshov +2
We study the Lepton Flavor Violating (LFV) conversion in Deep Inelastic Scattering (DIS) of electron (muon) on fixed-target nuclei. Our model-independent analysis is based…
Relating CP-violating decays to the neutron EDM
Thomas Gutsche, Astrid N. Hiller Blin, Sergey Kovalenko +4
We use the present upper bound on the neutron electric dipole moment to give an estimate for the upper limit of the CP-violating couplings of the meson to the neutron. Usin…
CP-violating decays of the pseudoscalars eta and eta' and their connection to the electric dipole moment of the neutron
Thomas Gutsche, Astrid N. Hiller Blin, Sergey Kovalenko +4
Using the present upper bound on the neutron electric dipole moment, we give an estimate for the upper limit of the CP-violating couplings of the eta(eta') to the nucleon. Using th…
QCD Corrections and Long-Range Mechanisms of neutrinoless double beta decay
Carolina Arbeláez, Marcela González, Martin Hirsch +1
Recently it has been demonstrated that QCD corrections are numerically important for short-range mechanisms (SRM) of neutrinoless double beta decay () mediated by heavy parti…
Nucleon tensor form factors in a relativistic confined quark model
Thomas Gutsche, Mikhail A. Ivanov, Jurgen G. Korner +2
We present results for the isotriplet and isosinglet tensor form factors of the nucleon in the relativistic confined quark model. The model allows us to calculate not only their no…
Scalar-mediated double beta decay and LHC
L. Gonzales, J. C. Helo, M. Hirsch +1
The decay rate of neutrinoless double beta decay could be dominated by short-range diagrams involving heavy scalar particles ("topology-II" diagrams). Examples are diagrams with di…
A facility to Search for Hidden Particles at the CERN SPS: the SHiP physics case
Sergey Alekhin, Wolfgang Altmannshofer, Takehiko Asaka +82
This paper describes the physics case for a new fixed target facility at CERN SPS. The SHiP (Search for Hidden Particles) experiment is intended to hunt for new physics in the larg…
Arbitrary mass Majorana neutrinos in neutrinoless double beta decay
Amand Faessler, Marcela Gonzalez, Sergey Kovalenko +1
We revisit the mechanism of neutrinoless double beta (NLDBD) decay mediated by the exchange with the heavy Majorana neutrino N of arbitrary mass mN, slightly mixed with the electro…
Limits on Lepton Flavor Violation from μ-e-conversion
Marcela Gonzalez, Thomas Gutsche, Juan Carlos Helo +3
We revisit the status of Lepton Flavor Violating (LFV) μe qq contact interactions from the view point of μ- e -conversion in nuclei. We consider their contribution to this LFV proc…
New bounds on lepton flavor violating decays of vector mesons and the Z0 boson
Thomas Gutsche, Juan C. Helo, Sergey Kovalenko +1
We give an estimate for the upper bounds on rates of lepton flavor violating (LFV) decays M to mu(pm) + e(mp) of vector mesons M = rho0, omega, phi, J/psi, Upsilon and the Z0 boson…
Beta Decaying Nuclei as a Probe of Cosmic Neutrino Background
Rastislav Hodak, Sergey Kovalenko, Fedor Simkovic +1
We analyze the possibility of detection of cosmological relic neutrinos via neutrino capture on beta decaying nuclei. This reaction has no threshold in neutrino energy, which is cr…
B_s(d) - bar B_s(d) mixing constraints on flavor changing decays of t and b quarks
Amand Faessler, Thomas Gutsche, Sergey Kovalenko +2
We study those dimension 6 effective operators which generate flavor-changing quark-gluon transitions of the third generation quarks, with t -> g + u(c) and b -> g + d(s), and whic…
Lepton flavor violating decays of vector mesons
Thomas Gutsche, Juan C. Helo, Sergey Kovalenko +1
We estimate the rates of lepton flavor violating decays of the vector mesons . The theoretical tools are based on an effective Lagrangian approach without referring…
X(3872) as a hadronic molecule and its decays to charmonium states and pions
Yubing Dong, Amand Faessler, Thomas Gutsche +2
The X(3872) with quantum numbers J(PC) = 1(++) is considered as a composite hadronic state comprised of the dominant molecular D(0) D*(0) component and other hadronic pairs - D(+-)…