This talk proposes a direct link between the hierarchy problem and Weakly Interacting Massive Particles (WIMPs): we suggest that the small mass of the Higgs boson arises from being dynamically driven to the scale of the WIMP. Such a special electroweak vacuum is singled out by lying close to the critical boundary of a phase transition, as recently explored in a new class of cosmological...
I will talk about dispersion relations (analog of Kramers-Kronig relations) for tidal Love number of weakly gravitating compact objects.
The holographic principle suggests that quantum gravity can be described by an equivalent lower-dimensional field theory. While this idea is well-established in anti–de Sitter space, extending it to more realistic settings remains an open challenge. This talk presents recent progress toward a flat space hologram, where scattering amplitudes are expressed as correlators at null infinity. I will...
Las teorías finitas de gran unificación son teorías del campo supersimétricas que están libres de divergencias en el UV, esta libertad se codifica en función de sus RGE's, exhibiendo del mismo modo una invarianza ante transformaciones conformes. En este trabajo se estudia el rompimiento de supersimetría en este tipo de modelos desde dos puntos de vista; el primero es un estudio teórico del...
The direct detection of gravitational waves has put the relativistic
two-body problem in the spotlight and stimulated progress in
perturbative approaches that provide analytic insight into its dynamics. Two strategies that have been witnessing interesting developments to this end are the ones based on scattering amplitudes, which apply to binary scatterings at large impact parameter, and on...
QCD remains intractable in the high-energy soft regime, where all standard methods break down. This regime governs total hadronic cross-sections, which have long been observed to grow with energy, a phenomenon that is still very poorly understood today. In this talk, I will argue that the modern S-matrix bootstrap provides a systematic way to tackle this regime of QCD. I will derive an upper...
En este trabajo, exploramos una variante del mecanismo seesaw donde las masas de los neutrinos ligeros se generan mediante correcciones radiativas (a un loop). En este marco, calculamos cómo los neutrinos de Majorana virtuales contribuyen al vértice $WWh$. De este cálculo surgen varios acoplamientos anómalos, tanto $CP$-pares como $CP$-impares.Hicimos estimaciones numéricas analizando el rol...
It is demonstrated that non-extensive entropies depending solely on probability (Obregón, 2010) yield generalized propagators, consequently modifying the wave function. Furthermore, our recent work explores how these entropies impact General Relativity; specifically, by employing Jacobson and Wald formalisms, we have derived an f(R) Lagrangian consistent with these frameworks.
En este trabajo exploramos la posibilidad de incorporar campos escalares motivados en la física de partículas a un modelo cosmológico de materia oscura compuesta por dos partículas escalares fundamentales. En este contexto, exploramos la posibilidad de combinar un campo axión y un campo tipo Higgs, así como un campo tipo Higgs y el campo clásico, consideramos una región específica del espacio...
