69 citations · 289 across the 20 of their papers we have counts for
21 papers
Testing Leptogenesis via CP asymmetries in Lepton-Number-Violating Decays at Colliders
Jean-François Fortin, Alessandro Granelli, David London +2
In principle, searches for CP asymmetries in rare -boson decays can test low-scale leptogenesis in the GeV-scale type-I seesaw with three quasi-degenerate-in-mass heavy right-ha…
Dirac-Phase CP-Violation in the Low-Scale Type-I Seesaw with Three Right-Handed Neutrinos
Alessandro Granelli, Juraj Klarić, S. T. Petcov
We study the low-scale type-I seesaw with three right-handed neutrinos (i.e. heavy Majorana neutrinos) when the CP-violation arises solely from the low-energy Dirac phase of th…
Dark Matter Interpretation of the Super-Kamiokande Antineutrino Excess and Predictions for JUNO
Alessandro Granelli, Silvia Pascoli, Salvador Rosauro-Alcaraz
Super-Kamiokande has reported a small excess of electron antineutrino events in the 20 MeV energy range, in the search for the diffuse supernova neutrino background. We interpret t…
ULYSSES the Third: An Odyssey Towards a Unified Python Toolkit for Leptogenesis
Alessandro Granelli, Juraj Klarić, Dhruv Pasari +2
We present the third release of , a Python package for the numerical evaluation of the baryon asymmetry generated through leptogenesis. This version includes code…
Boosted dark matter versus dark matter-induced neutrinos from single and stacked blazars
Andrea Giovanni De Marchi, Alessandro Granelli, Jacopo Nava +1
The physics responsible for the production of observed high-energy neutrinos have not been established so far, neither for the diffuse astrophysical ones nor for those detected fro…
Diffuse astrophysical neutrinos from dark matter around blazars
Andrea Giovanni De Marchi, Alessandro Granelli, Jacopo Nava +1
Neutrinos from blazars can originate from inelastic scatterings between protons within their jets and sub-GeV dark matter (DM) around them, explaining IceCube detections of neutrin…
From oversimplified to overlooked: the case for exploring Rich Dark Sectors
Asli Abdullahi, Francesco Costa, Andrea Giovanni De Marchi +9
The Standard Model (SM) of particle physics provides a very successful description of fundamental particles and their interactions but it is incomplete, as neutrino masses, dark ma…
Neutrino Theory in the Precision Era
Asmaa Abada, Gabriela Barenboim, Toni Bertólez-Martínez +76
This document summarises discussions on future directions in theoretical neutrino physics, which are the outcome of a neutrino theory workshop held at CERN in February 2025. The st…
Insights on the Scale of Leptogenesis from Neutrino Masses and Neutrinoless Double-Beta Decay
Alessandro Granelli, Koichi Hamaguchi, Maura E. Ramirez-Quezada +3
We revisit the thermal leptogenesis scenario in the type-I seesaw framework featuring three heavy Majorana neutrinos with a hierarchical mass spectrum. We focus on low energy obser…
Did IceCube discover Dark Matter around Blazars?
Andrea Giovanni De Marchi, Alessandro Granelli, Jacopo Nava +1
Models of blazar jets, that explain observations of their photon spectra, typically predict too few neutrinos to be possibly seen by existing telescopes. In particular, they fall s…
Relic Neutrino Background from Cosmic-Ray Reservoirs
Andrea Giovanni De Marchi, Alessandro Granelli, Jacopo Nava +1
We compute the flux of relic neutrino background (RB) up-scattered by ultra-high-energy (UHE) cosmic rays (CRs) in clusters that act as CR-reservoirs. The long trapping times of…
Standard and Non-Standard Aspects of Neutrino Physics
Alessandro Granelli
This review provides a succinct overview of the basic aspects of neutrino physics. The topics covered include: neutrinos in the standard model and the three-neutrino mixing scheme;…
Low-Scale Leptogenesis with Low-Energy Dirac CP-Violation
Alessandro Granelli, Silvia Pascoli, Serguey T. Petcov
We study the freeze-in scenario of leptogenesis via oscillations within the type-I seesaw model with two quasi-degenerate heavy Majorana neutrinos having masses $M_2 >…
Thermal Leptogenesis in the Minimal Gauged Model
Alessandro Granelli, Koichi Hamaguchi, Natsumi Nagata +2
We discuss the thermal leptogenesis mechanism within the minimal gauged U(1) model to explain the observed baryon asymmetry of the Universe (BAU). In such framework, th…
ULYSSES, Universal LeptogeneSiS Equation Solver: version 2
Alessandro Granelli, Christopher Leslie, Yuber F. Perez-Gonzalez +4
ULYSSES is a Python package that calculates the baryon asymmetry produced from leptogenesis in the context of a type-I seesaw mechanism. In this release, the new features include c…
Tests of Low-Scale Leptogenesis in Charged Lepton Flavour Violation Experiments
A. Granelli, J. Klarić, S. T. Petcov
We consider low-energy tests of low-scale leptogenesis based on the type I seesaw scenario with three right-handed singlet neutrinos . In this scenario, successful leptoge…
Blazar-Boosted Dark Matter at Super-Kamiokande
Alessandro Granelli, Piero Ullio, Jin-Wei Wang
Dark matter particles near the center of a blazar, after being accelerated by the elastic collisions with relativistic electrons and protons in the blazar jet, can be energetic eno…
Direct Detection Constraints on Blazar-Boosted Dark Matter
Jin-Wei Wang, Alessandro Granelli, Piero Ullio
We explore the possibility that relativistic protons in the extremely powerful jets of blazars may boost via elastic collisions the dark matter particles in the surroundings of the…
Aspects of High Scale Leptogenesis with Low-Energy Leptonic CP Violation
A. Granelli, K. Moffat, S. T. Petcov
Using the density matrix equations (DME) for high scale leptogenesis based on the type I seesaw mechanism, in which the CP violation (CPV) is provided by the low-energy Dirac or/an…
Flavoured Resonant Leptogenesis at Sub-TeV Scales
A. Granelli, K. Moffat, S. T. Petcov
We consider sub-TeV scale flavoured resonant leptogenesis within the minimal type-I seesaw scenario with two right-handed singlet neutrinos forming a pseudo-Dirac pair, c…
ULYSSES: Universal LeptogeneSiS Equation Solver
Alessandro Granelli, Kristian Moffat, Yuber Perez-Gonzalez +2
ULYSSES is a python package that calculates the baryon asymmetry produced from leptogenesis in the context of a type-I seesaw mechanism. The code solves the semi-classical Boltzman…