A5042935157- Neutrino Physics Research
- Particle physics theoretical and experimental studies
- Dark Matter and Cosmic Phenomena
- Cosmology and Gravitation Theories
- Astrophysics and Cosmic Phenomena
- Black Holes and Theoretical Physics
- Pulsars and Gravitational Waves Research
- Particle Detector Development and Performance
- Galaxies: Formation, Evolution, Phenomena
- Relativity and Gravitational Theory
- Computational Physics and Python Applications
- Noncommutative and Quantum Gravity Theories
- Atomic and Subatomic Physics Research
- Particle accelerators and beam dynamics
- Photocathodes and Microchannel Plates
- Radiation Detection and Scintillator Technologies
- Particle Accelerators and Free-Electron Lasers
- High-Energy Particle Collisions Research
- Radio Astronomy Observations and Technology
- Medical Imaging Techniques and Applications
- Magnetic confinement fusion research
- Photonic and Optical Devices
- Nuclear Physics and Applications
- Quantum Electrodynamics and Casimir Effect
- Scientific Research and Discoveries
Universidad Autónoma de Madrid
2025
Durham University
2021-2024
Fermi National Accelerator Laboratory
2018-2022
Northwestern University
2018-2022
Centro Científico Tecnológico - San Juan
2020-2021
Universidade de São Paulo
2016-2019
Universidade Estadual Paulista (Unesp)
2018
Hawking evaporation of black holes in the early Universe is expected to copiously produce all kinds particles, regardless their charges under Standard Model gauge group. For this reason, any fundamental particle, known or otherwise, could be produced during hole lifetime. This certainly includes dark matter (DM) particles. paper improves upon previous calculations DM production from primordial (PBH) by consistently including greybody factors, and meticulously tracking a system coupled...
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...
This report summarizes the present status of neutrino non-standard interactions (NSI). After a brief overview, several aspects NSIs are discussed, including connection to mass models, model-building and phenomenology large NSI with both light heavy mediators, in short- long-baseline oscillation experiments, cross-sections, complementarity other low- high-energy fits scattering data, DUNE sensitivity NSI, effective field theory as well relevance dark matter cosmology. We also discuss open...
We study Primordial Black Holes (PBHs) as sources of massive neutrinos via Hawking radiation. Under the hypothesis that black holes emit neutrino mass eigenstates, we describe quantitatively how PBH evolution and lifetime is affected by fermionic—Dirac or Majorana—nature neutrinos. In case Dirac neutrinos, PBHs radiate right-handed left-handed in equal amounts, thus possibly increasing effective number species, Neff. Assuming an initially monochromatic spectrum, with initial Mi related to...
If dark matter interacts with the Standard Model only gravitationally its abundance in universe could be explained by evaporation of primordial black holes (PBH) through Hawking radiation which ``democratically'' emits all existing particles. In these two papers, authors study this scenario great detail, significantly improving on previous calculations, and eventually include also interactions Model. One curious observation is strong dependence necessary density PBH spin
We inspect recently updated neutrino oscillation data---specifically coming from the Tokai to Kamioka and NuMI Off-axis ${\ensuremath{\nu}}_{e}$ Appearance experiments---and how they are analyzed determine whether mass ordering is normal (${m}_{1}<{m}_{2}<{m}_{3}$) or inverted (${m}_{3}<{m}_{1}<{m}_{2}$). show that, despite previous results giving a strong preference for ordering, with newest data T2K NOvA, this has all but vanished. Additionally, we highlight importance of result...
We explore the interplay between light primordial black holes (PBH) and high-scale baryogenesis, with a particular emphasis on leptogenesis. first review generic baryogenesis scenario where heavy particle, $X$, mass, ${M}_{X}$, produced solely from PBH evaporation decays to generate baryon asymmetry. show that viable parameter space is bounded above by ${M}_{X}\ensuremath{\lesssim}{10}^{17}\text{ }\text{ }\mathrm{GeV}$ increases decreasing ${M}_{X}$. demonstrate regions of leptogenesis...
Many cosmological phenomena lead to the production of primordial black holes in early Universe. These often create a population with extended mass and spin distributions. As these evaporate via Hawking radiation, they can modify various observables, dark matter, number effective relativistic degrees freedom, ${N}_{\mathrm{eff}}$, source stochastic gravitational wave background alter dynamics baryogenesis. We consider evaporation that feature nontrivial distributions demonstrate shape such...
A bstract We investigate how superradiance affects the generation of baryon asymmetry in a universe with rotating primordial black holes, considering scenario where scalar boson is coupled to heavy right-handed neutrinos. identify regions parameter space production enhanced due superradiance. This enhancement, subsequent decay into right handed neutrinos, results non-thermal creation lepton asymmetry. show that successful leptogenesis achieved for masses holes range order O (0 . 1 g) − (10...
A bstract Neutrino trident scattering is a rare Standard Model process where charged-lepton pair produced in neutrino-nucleus scattering. To date, only the dimuon final-state has been observed, with around 100 total events, while other channels are as yet unexplored. In this work, we compute production cross section by performing complete four-body phase space calculation for different hadronic targets. This provides correct estimate both of coherent and diffractive contributions to these...
Novel leptophilic neutral currents can be tested at upcoming neutrino oscillation experiments using two complementary processes, trident production and neutrino-electron ($\ensuremath{\nu}\ensuremath{-}e$) elastic scattering. Considering generic anomaly-free $U(1)$ extensions of the Standard Model, we discuss characteristics $\ensuremath{\nu}\ensuremath{-}e$ scattering as well ${e}^{+}{e}^{\ensuremath{-}}$ ${\ensuremath{\mu}}^{+}{\ensuremath{\mu}}^{\ensuremath{-}}$ DUNE near detector in...
The Universe is awash with tens-of-MeV neutrinos of all species coming from past core-collapse supernovae. These have never been observed, but this state affairs will change in the near future. In less than ten years, Super-Kamiokande experiment, loaded gadolinium, expected to collect dozens events induced by scattering diffuse supernova neutrino background (DSNB). Next-generation projects, including Hyper-Kamiokande and Theia, are data samples hundreds DSNB after a decade running. Here, we...
We perform the first numerical calculation of interplay between thermal and black hole induced leptogenesis, demonstrating that right-handed neutrino surplus produced during evaporation only partially mitigates entropy dilution suffered by component. As such, intermediate-mass regime neutrinos, ${10}^{6}\text{ }\text{ }\mathrm{GeV}\ensuremath{\lesssim}{M}_{N}\ensuremath{\lesssim}{10}^{9}\text{ }\mathrm{GeV}$, could not explain observed baryon asymmetry even for fine-tuned scenarios if there...
When rotating primordial black holes evaporate via Hawking radiation, their rotational energy and mass are dissipated with different dynamics. We investigate the effect of these dynamics on production dark radiation---in form hot gravitons or vector bosons---and noncold matter. Although higher spin particles is enhanced while (PBHs) rotating, we show that density radiation experiences an extra redshift because emission effectively halts before PBH evaporation completes. find taking this into...
We propose to use the unique event topology and reconstruction capabilities of liquid argon time projection chambers study sub-GeV atmospheric neutrinos. The detection low energy recoiled protons in DUNE allows for a determination leptonic $CP$-violating phase independent from accelerator neutrino measurement. Our findings indicate that this analysis can exclude range values ${\ensuremath{\delta}}_{CP}$ beyond $3\ensuremath{\sigma}$ level. Moreover, flux will have important consequences...
We investigate the phenomenological consequences of axion-like particle (ALP) dark matter with an early domination triggered by primordial black holes (PBHs). focus on light BHs masses smaller than $\sim 10^9~$g which fully evaporate before Big Bang nucleosynthesis. numerically solve coupled Boltzmann equations, carefully taking greybody factors and BH angular momentum into account. find that entropy injection from PBH evaporation dilutes ALP relic abundance originally produced via vacuum...
Rotating black holes (BHs) can efficiently transfer energy to the surrounding environment via superradiance. In particular, when Compton length of a particle is comparable gravitational radius BH, particle's occupation number be exponentially amplified. this work, we investigate effect primordial-black-hole (PBH) superradiant instabilities on generation heavy bosonic dark matter (DM) with mass above $\sim$ 1 TeV. Additionally, analyze its interplay other purely and therefore unavoidable DM...
We investigate the capture rate of cosmic neutrino background on tritium within Standard Model, extended to incorporate three right-handed singlet neutrinos with explicit lepton-number violation. consider a scenario where <a:math xmlns:a="http://www.w3.org/1998/Math/MathML" display="inline"><a:mn>6</a:mn><a:mo>×</a:mo><a:mn>6</a:mn></a:math> mixing matrix factorizes into independent <c:math xmlns:c="http://www.w3.org/1998/Math/MathML"...
A bstract In this paper we show that the DUNE experiment can measure Earth’s density profile by analyzing atmospheric neutrino oscillations. The crucial feature enables such measurement is detailed event reconstruction capability of liquid argon time projection chambers. This allows for studying sub-GeV component, which bears a rich oscillation phenomenology, strongly dependent on matter potential sourced Earth. We provide pedagogical discussion MSW and parametric resonances their role in...
A new generation of neutrino experiments is testing the 4.7σ anomalous excess electronlike events observed in MiniBooNE. This huge importance for particle physics, astrophysics, and cosmology, not only because potential discovery physics beyond standard model, but also lessons we will learn about neutrino-nucleus interactions be crucial worldwide program. MicroBooNE has recently released results that appear to disfavor several explanations MiniBooNE anomaly. Here, show quantitatively...
Abstract We examine how the existence of a population primordial black holes (PBHs) influences cosmological gravitational particle production (CGPP) for spin-0 and spin-1 particles. In addition to known effects entropy dilution resulting from PBH evaporation, we find that generation dark matter (DM) through CGPP is profoundly influenced by possible era domination. This early dominated results in an enhancement spectrum CGPP. Specifically, it amplifies peak comoving momentum k ⋆ DM, while...
A bstract The detection of coherent neutrino-nucleus scattering by the COHERENT collaboration has set on quantitative grounds existence an irreducible neutrino background in direct searches Weakly Interacting Massive Dark Matter candidates. This leads to ultimate discovery limit for these experiments: a minimum interaction cross section below which events produced will mimic signal, so-called floor . In this work we study modification such induced non-standard interactions within their...
A bstract We explore the sensitivity to new physics of recently proposed vIOLETA experiment: a 10 kg Skipper Charged Coupled Device detector deployed 12 meters away from commercial nuclear reactor core. investigate two broad classes models which benefit very low energy recoil threshold these detectors, namely neutrino magnetic moments and light mediators coupled neutrinos quarks or electrons. find that this experimental setup is sensitive light, weakly physics, in particular it could probe...