The members of large High Energy Physics (HEP) experiments come from all over the World. Thereby, they understand that one significant challenge in teaching experimental HEP is the current location of many potential and precious students and young researchers. In the case of ATLAS, many of its members come from a Latin-American country, and they recognise the huge potential that the -always...
The inert Zee model is an extension of the famous Zee model for neutrino masses to allow for a solution to the dark matter problem that involves two vector-like leptons, a doublet and a singlet of $SU(2)_L$, and two scalars, also a doublet and a singlet of $SU(2)_L$, all of them being odd under an exact $Z_2$ symmetry. The introduction of the $Z_2$ guarantees one-loop neutrino masses,...
We propose a simple theory for the idea that cosmological dark matter (DM) may be present today mainly in the form of stable neutral hadronic thermal relics. In our model neutrino masses arise radiatively from the exchange of colored DM constituents, giving a common origin for both dark matter and neutrino mass. The exact conservation of B-L symmetry ensures dark matter stability and the...
In this work we have explored the phenomenology of dark matter in the Inert Zee Model (IZM), which is an extension of the standard model that aims to solve simultaneously the dark matter problem and the neutrino masses and mixings, through the addition of new scalar and fermion fields, and the introduction of a $Z_2$ symmetry to stabilize dark matter. Since that the phenomenology of the...
We study the dark matter stability due to the existence of an additional U(1) gauge symmetry. Furthermore, we generate neutrino masses at the radiative level via an effective dimension five Weinberg operator. The presence of an extra Abelian symmetry allows accommodating the recent LHCb anomalies in B → K(K∗)μ+μ− decays, by fixing some parameters of the model.
In this work we investigate the conditions and mathematical tools that are necessary to generate a strong first-order electroweak phase transition (EWPT) in three models that extends the Standard Model (SM) with extra fields and extra symmetries. Concretely, we consider the real singlet scalar model, the inert doublet model (IDM) and he scotogenic model. Finally we establish the necessary...
Lepton-number violation can be induced by the exchange of an on-shell Majorana neutrino $N$ in rare semileptonic $|\Delta L|=2$ decays of the $B_s$ meson and $\Lambda_b$ baryon. We investigate the production of such a heavy sterile neutrino through these four-body $\mu^+\mu^+$ channels and explore the sensitivity that can be reached at the LHCb and CMS experiments. For heavy neutrino...
A measurement of the suppression of J/ψ and ψ’ production in high-energy heavy ion interactions has been suggested to be an important probe in identifying the presence and properties of quark-gluon plasma (QGP). However, a similar quarkonium production depletion observed in p-A interactions at lower energies makes it pivotal to understand the effects of cold nuclear matter (CNM). By doing...
The experimental measures of flavor mixing angles of quarks and neutrinos, satisfy the empirical relations $\theta_{12}^{q}+\theta_{12}^{l}\approx\pi/4$ and $\theta_{23}^{q}+\theta_{23}^{l}\approx\frac{\pi}{4}$, where $\theta_{12}^{q}$is the mixing angle between the two first generations for the quarks sector and $\theta_{12}^{l}$ is the corresponding for the lepton sector, while...