92 citations · 1k across the 40 of their papers we have counts for
42 papers
Heavy Dark Baryons as Self-Interacting Dark Matter: A GeV-Scale Coincidence
Giovani Dalla Valle Garcia, Juan Herrero-Garc\'ıa
We study self-interacting dark matter composed of heavy baryons in a confining dark gauge theory with a single heavy vector-like quark, . In this regime, the d…
Heavy Dark Baryons at Large : Self-Interactions across All Scales
Giovani Dalla Valle Garcia, Juan Herrero-Garc\'ıa
We show that heavy dark baryons in a confining sector with a moderately large number of colors, --, can generate self-interactions spanning the full range of…
Squeezing Proton Decay and Neutrino Masses: Upper Bounds on Standard Model Extensions
Arnau Bas i Beneito, John Gargalionis, Juan Herrero-Garcia +1
Baryon and lepton number are excellent low-energy symmetries of the Standard Model (SM) that tightly constrain the form of its extensions. In this paper we investigate the possibil…
Dark Matter in the High-Scale Seesaw Leptogenesis Paradigm
Juan Herrero-Garcia, Giacomo Landini, Tsutomu T. Yanagida
The seesaw mechanism with three heavy Majorana right-handed neutrinos provides an elegant explanation for neutrino masses and, combined with leptogenesis, can generate the baryon a…
Dynamical origin of neutrino masses and dark matter from a new confining sector
Maximilian Berbig, Juan Herrero-Garcia, Giacomo Landini
A dynamical mechanism, based on a confining non-abelian dark symmetry, which generates Majorana masses for hypercharge-less fermions, is proposed. We apply it to the inverse seesaw…
Model-independent estimates for loop-induced baryon-number-violating nucleon decays
John Gargalionis, Juan Herrero-Garcia, Michael A. Schmidt
Baryon number is an accidental symmetry of the Standard Model (SM) Lagrangian that so far has been measured to be exactly preserved, although it is expected to be violated at highe…
Neutrino masses from new seesaw models: Low-scale variants and phenomenological implications
Alessio Giarnetti, Juan Herrero-Garcia, Simone Marciano +2
With just the Standard Model Higgs doublet, there are only three types of seesaw models that generate light Majorana neutrino masses at tree level after electroweak spontaneous sym…
An EFT approach to baryon number violation: lower limits on the new physics scale and correlations between nucleon decay modes
Arnau Bas i Beneito, John Gargalionis, Juan Herrero-Garcia +2
Baryon number is an accidental symmetry of the Standard Model at the Lagrangian level. Its violation is arguably one of the most compelling phenomena predicted by physics beyond th…
Neutrino masses from new Weinberg-like operators: Phenomenology of TeV scalar multiplets
Alessio Giarnetti, Juan Herrero-Garcia, Simone Marciano +2
The unique dimension- effective operator, , known as the Weinberg operator, generates tiny Majorana masses for neutrinos after electroweak spontaneous symmetry breaking. I…
Asymmetries in Extended Dark Sectors: A Cogenesis Scenario
Juan Herrero-Garcia, Giacomo Landini, Drona Vatsyayan
The observed dark matter relic abundance may be explained by different mechanisms, such as thermal freeze-out/freeze-in, with one or more symmetric/asymmetric components. In this w…
A semi-supervised approach to dark matter searches in direct detection data with machine learning
Juan Herrero-Garcia, Riley Patrick, Andre Scaffidi
The dark matter sector remains completely unknown. It is therefore crucial to keep an open mind regarding its nature and possible interactions. Focusing on the case of Weakly Inter…
Dark matter from a complex scalar singlet: The role of dark CP and other discrete symmetries
Leonardo Coito, Carlos Faubel, Juan Herrero-Garcia +1
We study the case of a pseudo-scalar dark matter candidate which emerges from a complex scalar singlet, charged under a global U(1) symmetry, which is broken both explicitly and sp…
The Singly-Charged Scalar Singlet as the Origin of Neutrino Masses
Tobias Felkl, Juan Herrero-Garcia, Michael A. Schmidt
We consider the generation of neutrino masses via a singly-charged scalar singlet. Under general assumptions we identify two distinct structures for the neutrino mass matrix. This…
New high-sensitivity searches for neutrons converting into antineutrons and/or sterile neutrons at the European Spallation Source
A. Addazi, K. Anderson, S. Ansell +92
The violation of Baryon Number, , is an essential ingredient for the preferential creation of matter over antimatter needed to account for the observed baryon asymmetr…
Astrophysics-independent determination of dark matter parameters from two direct detection signals
Juan Herrero-Garcia, Yannick Müller, Thomas Schwetz
Next-generation dark matter direct detection experiments will explore several orders of magnitude in the dark matter--nucleus scattering cross section below current upper limits. I…
Higgs Quark Flavor Violation: Simplified Models and Status of General Two-Higgs-Doublet Model
Juan Herrero-Garcia, Miguel Nebot, Filip Rajec +2
We study quark flavor violating interactions mediated by the Higgs boson . We consider observables involving a third generation quark, of both the up and the down quark sectors,…
Neutrino mass models: New classification and model-independent upper limits on their scale
Juan Herrero-Garcia, Michael A. Schmidt
We propose a model-independent framework to classify and study neutrino mass models and their phenomenology. The idea is to introduce one particle beyond the Standard Model which c…
On the direct detection of multi-component dark matter: implications of the relic abundance
Juan Herrero-Garcia, Andre Scaffidi, Martin White +1
Recently we studied the direct detection of multi-component dark matter with arbitrary local energy densities. Although the generation of the dark matter relic abundance is model-d…
Time-dependent rate of multicomponent dark matter: Reproducing the DAMA/LIBRA phase-2 results
Juan Herrero-Garcia, Andre Scaffidi, Martin White +1
The current paradigm for dark matter direct detection is to assume that the dark sector is solely composed of a single particle species. In this short paper, we make the observatio…
Phenomenology of the Generalised Scotogenic Model with Fermionic Dark Matter
Claudia Hagedorn, Juan Herrero-Garcia, Emiliano Molinaro +1
We study a simple extension of the Standard Model that accounts for neutrino masses and dark matter. The Standard Model is augmented by two Higgs doublets and one Dirac singlet fer…
Dark matter direct detection of a fermionic singlet at one loop
Juan Herrero-Garcia, Emiliano Molinaro, Michael A. Schmidt
The strong direct detection limits could be pointing to dark matter -- nucleus scattering at loop level. We study in detail the prototype example of an electroweak singlet (Dirac o…
The distribution of inelastic dark matter in the Sun
Mattias Blennow, Stefan Clementz, Juan Herrero-Garcia
If dark matter is composed of new particles, these may become captured after scattering with nuclei in the Sun, thermalise through additional scattering, and finally annihilate int…
On the direct detection of multi-component dark matter: sensitivity studies and parameter estimation
Juan Herrero-Garcia, Andre Scaffidi, Martin White +1
We study the case of multi-component dark matter, in particular how direct detection signals are modified in the presence of several stable weakly-interacting-massive particles. As…
Full parameter scan of the Zee model: exploring Higgs lepton flavor violation
Juan Herrero-García, Tommy Ohlsson, Stella Riad +1
We study the general Zee model, which includes an extra Higgs scalar doublet and a new singly-charged scalar singlet. Neutrino masses are generated at one-loop level, and in order…