A5063975976- Particle physics theoretical and experimental studies
- Cosmology and Gravitation Theories
- Dark Matter and Cosmic Phenomena
- Black Holes and Theoretical Physics
- Computational Physics and Python Applications
- Quantum Chromodynamics and Particle Interactions
- Pulsars and Gravitational Waves Research
- High-Energy Particle Collisions Research
- Neutrino Physics Research
Istituto Nazionale di Fisica Nucleare, Sezione di Napoli
2023-2024
University of Naples Federico II
2023-2024
Abstract When light primordial black holes (PBHs) evaporate in the early Universe, they locally reheat surrounding plasma, creating hot spots with temperatures that can be significantly higher than average plasma temperature. In this work, we provide a general framework for calculating probability particle interacting Standard Model escape spot. More specifically, consider how these influence generation of baryon asymmetry Universe (BAU) leptogenesis scenarios, as well production dark matter...
We investigate the effects on sub-TeV resonant leptogenesis of primordial black holes with masses from <a:math xmlns:a="http://www.w3.org/1998/Math/MathML" display="inline"><a:msup><a:mn>10</a:mn><a:mn>6</a:mn></a:msup><a:mtext> </a:mtext><a:mtext> </a:mtext><a:mi mathvariant="normal">g</a:mi></a:math> to <d:math xmlns:d="http://www.w3.org/1998/Math/MathML" display="inline"><d:mo>∼</d:mo><d:msup><d:mn>10</d:mn><d:mn>9</d:mn></d:msup><d:mtext> </d:mtext><d:mtext> </d:mtext><d:mi...
We investigate the role that evaporation of light primordial black holes may have played in production baryon asymmetry Universe through high-scale leptogenesis. In particular, for mass hole range [$10^6$-$10^9$] g, we find a dilution thermally generated lepton via entropy injection plasma after sphaleron freeze-out. As consequence, can put strong constraints on parameters, showing mutual exclusion limits between and Remarkably, point out an interplay upper bound initial abundance active...
Neutrino-nucleus coherent scattering measurements by the COHERENT collaboration provide us with a unique capability to test various beyond standard model scenarios. In this work, we constrain scalar leptoquarks (LQs) using data. LQs arise in many extensions of Standard Model (SM). Generally, mass is assumed be very high avoid bounds from proton decay. However, there are low-scale LQ models which prohibit decay construction. We consider two electroweak doublet hypercharge $\mathrm{Y}=1/6$,...
We propose a Vector-like quark (VLQ) model constrained by the requirement of perturbative unitarity. In this scenario, neutral and charged couplings new heavy VLQs to SM quarks bosons are strictly related. derive corresponding sum rules display definite structure couplings. analyse, qualitatively, phenomenological consequences in terms expected width, production mechanism decay channels. show that upcoming LHC run 3 could have sensitivity such particles but search strategy should be adapted...
We investigate the effects on sub-TeV resonant leptogenesis of Primordial Black Holes with masses from $10^6$ to $\sim 10^9$ g. The latter might dominate energy content Universe altering its evolution and, eventually, diluting final baryon asymmetry. find that, depending mass and abundance Holes, parameter space shrinks towards higher Right-Handed Neutrino smaller active-sterile mixing. Remarkably, this translates into important implications for experimental searches heavy neutral leptons....