Conveners
Beyond the Standard Model
- Eduardo Rojas (Universidad de Nariño.)
In this work, we explore the potential of lepton-flavor violating (LFV) Higgs decays as a probe for new physics, specifically through the mediation of an ultralight gauge boson, denoted as $\chi$. Our study bridges the gap between a model generating the LFV interaction $\bar{\ell}_i \ell_j \chi$ at tree level and an effective field theory framework that preserves the light mass of $\chi$. We...
An open problem that the Standard Model does not solve is about the ori-
gin of the mass hierarchy among fermions. Different alternatives have been
proposed by adding extra groups to the Gauge group of the Standard Model or
by building hybrid models with some of them. It has been shown that the S3
symmetry has given good results if, in addition, three Higgs doublets with their
invariant...
We study the possibility of obtaining the Standard Model (SM) of particle physics as an effective theory of a more fundamental
one, whose electroweak sector includes two non-universal local $U(1)$ gauge groups, with the chiral anomaly cancellation taking place through an interplay among families. As a result of the spontaneous symmetry breaking, a massive gauge boson $Z'$ arises, which...
Los modelos 331 resultan de gran interés desde el punto de vista teórico y experimental, ya que permiten explicar entre otras cosas la razón por la cual deben existir tres familias de fermiones en la naturaleza y por otra parte tienen parámetros experimentales que pueden acotarse en los aceleradores de partículas como el LHC. En general estos modelos son no universales y por lo tanto tienen...
Using the CHY formalism to calculate scattering amplitudes, we compute the two loop amplitudes for Biadjoint scalar, pure Yang-Mills, pure Super Yang-Mills, pure Gravity and Supergravity in the context of forward limit analyzing the behavior of the singularities and the connection with asymptotic symmetries.
