A5080296441- Neutrino Physics Research
- Particle physics theoretical and experimental studies
- Astrophysics and Cosmic Phenomena
- Dark Matter and Cosmic Phenomena
- Quantum Chromodynamics and Particle Interactions
- Nuclear physics research studies
- High-Energy Particle Collisions Research
- Particle Detector Development and Performance
- Radiation Detection and Scintillator Technologies
- Particle accelerators and beam dynamics
- Atomic and Subatomic Physics Research
- Gamma-ray bursts and supernovae
- Nuclear Physics and Applications
- Electron and X-Ray Spectroscopy Techniques
- Muon and positron interactions and applications
- Quantum, superfluid, helium dynamics
- Particle Accelerators and Free-Electron Lasers
- Superconducting Materials and Applications
- Crystallography and Radiation Phenomena
- Advanced NMR Techniques and Applications
- Cosmology and Gravitation Theories
- Black Holes and Theoretical Physics
- Molecular Spectroscopy and Structure
- Astrophysics and Star Formation Studies
- Stellar, planetary, and galactic studies
Universidad de Sevilla
2016-2025
The University of Tokyo
2020-2024
University of Bern
2023
Albert Einstein College of Medicine
2023
Eötvös Loránd University
2023
Boston University
2023
Duke University
2023
Universidad Autónoma de Madrid
2023
University of California, Irvine
2023
Institute for Cosmic Ray Research
2020-2023
We present a detailed study of charged-current (CC) neutrino-nucleus reactions in fully relativis- tic framework and comparisons with recent experiments spanning an energy range from hundreds MeV up to 100 GeV within the SuperScaling Approach, which is based on analysis electron- nucleus scattering data has been recently improved inclusion Relativistic Mean Field theory effects. also evaluate discuss impact two-particle two-hole meson-exchange currents (2p-2h MEC) interactions through axial...
We present a systematic analysis of the quasielastic scaling functions computed within relativistic mean field (RMF) theory and we propose an extension superscaling approach (SuSA) model based on these results. The main aim this work is to develop realistic accurate phenomenological (SuSAv2), which incorporates different RMF effects in longitudinal transverse nuclear responses, as well isovector isoscalar channels. This provides complete set reference describe consistent way both...
We present our recent progress on the relativistic modeling of electron-nucleus reactions and compare predictions with inclusive $^{12}\mathrm{C}$ ($e$, ${e}^{\ensuremath{'}}$) experimental data in a wide kinematical region. The model, originally based superscaling phenomenon shown by scattering data, has recently been improved through inclusion mean field theory effects that take into account enhancement quasielastic transverse scaling function compared its longitudinal counterpart. In this...
A new search for the diffuse supernova neutrino background (DSNB) flux has been conducted at Super-Kamiokande (SK), with a $22.5\times2970$-kton$\cdot$day exposure from its fourth operational phase IV. The analysis improves on existing reduction techniques and systematic uncertainties takes advantage of an improved neutron tagging algorithm to lower energy threshold compared previous phases SK. This allows setting world's most stringent upper limit extraterrestrial $\bar{\nu}_e$ flux,...
We report the first search result for flux of astrophysical electron antineutrinos energies O(10) MeV in gadolinium-loaded Super-Kamiokande (SK) detector. In June 2020, gadolinium was introduced to ultra-pure water SK detector order detect neutrons more efficiently. this new experimental phase, SK-Gd, we can via inverse beta decay with efficient background rejection and higher signal efficiency thanks high neutron tagging technique. paper, initial stage SK-Gd a $22.5\times552$ $\rm kton\cdot...
We report a search for cosmic-ray boosted dark matter with protons using the 0.37 megaton×years data collected at Super-Kamiokande experiment during 1996-2018 period (SKI-IV phase). searched an excess of proton recoils above atmospheric neutrino background from vicinity Galactic Center. No such is observed, and limits are calculated two reference models either constant interaction cross section or through scalar mediator. This first experimental hadrons directional information. The results...
In this work we present a comparison of semi-inclusive muon and electron neutrino cross sections with <a:math xmlns:a="http://www.w3.org/1998/Math/MathML" display="inline"><a:mrow><a:mmultiscripts><a:mrow><a:mi>Ar</a:mi></a:mrow><a:mprescripts/><a:none/><a:mrow><a:mn>40</a:mn></a:mrow></a:mmultiscripts></a:mrow></a:math> target measured by the MicroBooNE collaboration predictions an unfactorized model based on relativistic distorted wave impulse approximation (RDWIA) SuSAv2-MEC implemented...
We evaluate and discuss the impact of meson-exchange currents (MECs) on charged-current quasielastic neutrino cross sections. consider nuclear transverse response arising from two-particle two-hole states excited by action electromagnetic, purely isovector in a fully relativistic framework based work Torino Collaboration [A. D. Pace, M. Nardi, W. Alberico, T. Donnelly, A. Molinari, Nucl. Phys. A726, 303 (2003)]. An accurate parametrization this MEC as function momentum energy transfers...
We first present the implementation and validation of SuSAv2-MEC 1p1h 2p2h models in GENIE neutrino-nucleus interaction event generator a comparison subsequent predictions to measurements lepton hadron kinematics from T2K experiment. These are also compared those other available GENIE. additionally compare semi-inclusive implemented model microscopic on which SuSAv2 is based - Relativistic Mean Field (RMF) begin test validity widely-used `factorisation' assumptions employed by generators...
We illustrate the connection between electron and neutrino scattering off nuclei show how former process can be used to constrain description of latter. After reviewing some nuclear models commonly study lepton-nucleus reactions, we describe in detail SuSAv2 model its predictions compare with available electron- neutrino-scattering data over kinematical range going from quasi-elastic peak pion-production highly inelastic scattering.
We present a complete comparison of semi-inclusive ${\ensuremath{\nu}}_{\ensuremath{\mu}}\text{\ensuremath{-}}^{12}\mathrm{C}$ cross section measurements by T2K and $\mathrm{MINER}\ensuremath{\nu}\mathrm{A}$ collaborations with the predictions from SuSAv2-MEC model implemented in neutrino-nucleus event generator GENIE an unfactorized approach based on relativistic distorted wave impulse approximation. Results, that include sections as function final muon proton kinematics correlations...
We study neutrino-nucleus charged-current reactions on finite nuclei for the situation in which an outgoing muon and a proton are detected coincidence, i.e., we focus semi-inclusive cross sections. limit our attention to one-body current interactions (quasielastic scattering) assess impact of different nuclear effects determination neutrino energy. identify regions phase space where energy can be reconstructed relatively well, whether section those is significant. Our results indicate that...
We present the predictions of SuSAv2-MEC model for double differential charged-current muonic neutrino (antineutrino) cross section on water T2K beam. validate our by comparing with available inclusive electron scattering data oxygen and compare recent $\nu_\mu$-$^{16}$O data, finding good agreement at all kinematics. show that results are very similar to those obtained $\nu_\mu-^{12}$C scattering, except low energies, we comment origin this difference. A factorized spectral function...
We show that the quasielastic (QE) response calculated with SuSAv2 (superscaling approach) model, relies on scaling phenomenon observed in analysis of (e,e') data and relativistic mean-field theory, is very similar to from a distorted wave impulse approximation model when only real part optical potentials employed. The coincidence between results these two completely independent approaches, which satisfactorily agree inclusive data, reinforces reliability predictions stemming both models...
The extraction of neutrino mixing parameters from accelerator-based oscillation experiments relies on proper modeling neutrino-nucleus scattering processes using neutrino-interaction event generators. Experimental tests these generators are difficult due to the broad range energies produced in beams and low statistics current experiments. Here we overcome difficulties by exploiting similarity electron interactions with nuclei test high-precision inclusive data. To this end, revised...
A substantial fraction of systematic uncertainties in neutrino oscillation experiments stem from the lack precision modeling nuclear target neutrino-nucleus interactions. Whilst this has driven significant progress development improved models for scattering, it is crucial that used data analyses be accompanied by parameters and associated allow coverage plausible physics. Based on constraints electron scattering data, we propose such a set parameters, which can applied to shell models, test...
In this work we compare the SuSAv2 model, based on superscaling phenomenon and relativistic mean field theory, with charged-current inclusive neutrino cross sections from NOvA MicroBooNE experiments, whose targets are composed primarily by <a:math xmlns:a="http://www.w3.org/1998/Math/MathML" display="inline"><a:mrow><a:mmultiscripts><a:mrow><a:mi mathvariant="normal">C</a:mi></a:mrow><a:mprescripts/><a:none/><a:mrow><a:mn>12</a:mn></a:mrow></a:mmultiscripts></a:mrow></a:math> <d:math...
We searched for proton decay via $p\ensuremath{\rightarrow}{\ensuremath{\mu}}^{+}{K}^{0}$ in $0.37\text{ }\text{ }\mathrm{Mton}\ifmmode\cdot\else\textperiodcentered\fi{}\mathrm{years}$ of data collected between 1996 and 2018 from the Super-Kamiokande water Cherenkov experiment. The selection criteria were defined separately ${K}_{S}^{0}$ ${K}_{L}^{0}$ channels. No significant event excess has been observed. As a result this analysis, which extends previous search by an additional $0.2\text{...
We compare the charged-current quasielastic neutrino and antineutrino observables obtained in two different nuclear models, phenomenological SuperScaling Approximation relativistic mean field approach, with recent data published by $\text{MINER}\ensuremath{\nu}\mathrm{A}$ Collaboration. Both models provide a good description of without need an ad hoc increase mass parameter axial-vector dipole form factor. Comparisons are also made MiniBooNE results, where conclusions reached.
We use a recently developed model of relativistic meson-exchange currents to compute the neutron-proton and proton-proton yields in $(\nu_\mu,\mu^-)$ scattering from $^{12}$C 2p-2h channel. response functions cross sections with Fermi gas for different kinematics intermediate high momentum transfers. find large contribution configurations initial state, as compared pairs. In case charge-changing neutrino section emission ({\it i.e.,} np state) is much larger than two neutrons by...
We present a multi-wavelength analysis of the history star formation in W3 complex. Using deep, near-infrared ground-based images, combined with images obtained Spitzer and Chandra observatories, we identified classified young embedded sources. principal clusters complex, determined their structure extension. constructed extinction-limited samples for five clusters, K-band luminosity functions (KLF) that compare those artificial varying ages. This provided mean ages possible age spreads...