G. D. Megias
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View article: Erratum: Superscaling in the resonance region for neutrino-nucleus scattering: The SuSAv2 dynamical coupled-channels model [Phys. Rev. D <b>108</b>, 113008 (2023)]
Erratum: Superscaling in the resonance region for neutrino-nucleus scattering: The SuSAv2 dynamical coupled-channels model [Phys. Rev. D <b>108</b>, 113008 (2023)] Open
View article: Erratum: SuSAv2 model for inelastic neutrino-nucleus scattering [Phys. Rev. D <b>105</b>, 093009 (2022)]
Erratum: SuSAv2 model for inelastic neutrino-nucleus scattering [Phys. Rev. D <b>105</b>, 093009 (2022)] Open
View article: Analysis of NOvA and MicroBooNE charged-current inclusive neutrino measurements within the SuSAv2 framework
Analysis of NOvA and MicroBooNE charged-current inclusive neutrino measurements within the SuSAv2 framework Open
In this work we compare the SuSAv2 model, based on the superscaling phenomenon and the relativistic mean field theory, with charged-current inclusive neutrino cross sections from the NOvA and MicroBooNE experiments, whose targets are compo…
View article: Neutron multiplicity measurement in muon capture on oxygen nuclei in the Gd-loaded Super-Kamiokande detector
Neutron multiplicity measurement in muon capture on oxygen nuclei in the Gd-loaded Super-Kamiokande detector Open
In recent neutrino detectors, neutrons produced in neutrino reactions play an important role. Muon capture on oxygen nuclei is one of the processes that produce neutrons in water Cherenkov detectors. We measured neutron multiplicity in the…
View article: Analysis of NOvA and MicroBooNE charged-current inclusive neutrino measurements within the SuSAv2 framework
Analysis of NOvA and MicroBooNE charged-current inclusive neutrino measurements within the SuSAv2 framework Open
In this work we compare the SuSAv2 model, based on the superscaling phenomenon and the relativistic mean field theory, with charged-current inclusive neutrino cross sections from the NOvA and MicroBooNE experiments, whose targets are compo…
View article: Search for proton decay via <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>p</mml:mi><mml:mo stretchy="false">→</mml:mo><mml:mrow><mml:msup><mml:mi>e</mml:mi><mml:mo>+</mml:mo></mml:msup><mml:mi>η</mml:mi></mml:mrow></mml:math> and <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>p</mml:mi><mml:mo stretchy="false">→</mml:mo><mml:mrow><mml:msup><mml:mi>μ</mml:mi><mml:mo>+</mml:mo></mml:msup><mml:mi>η</mml:mi></mml:mrow></mml:math> with a 0.37 Mton-year exposure of Super-Kamiokande
Search for proton decay via and with a 0.37 Mton-year exposure of Super-Kamiokande Open
A search for proton decay into e+/μ+ and a η meson has been performed using data from a 0.373 Mton·year exposure (6050.3 live days) of Super-Kamiokande. Compared to previous searches this work introduces an improved model of the intranucl…
View article: Measurements of the charge ratio and polarization of cosmic-ray muons with the Super-Kamiokande detector
Measurements of the charge ratio and polarization of cosmic-ray muons with the Super-Kamiokande detector Open
We present the results of the charge ratio (R) and polarization (P0μ) measurements using decay electron events collected between September 2008 and June 2022 with the Super-Kamiokande detector. Because of its underground location and long …
View article: Search for proton decay via $p\rightarrow{e^+η}$ and $p\rightarrow{μ^+η}$ with a 0.37 Mton-year exposure of Super-Kamiokande
Search for proton decay via $p\rightarrow{e^+η}$ and $p\rightarrow{μ^+η}$ with a 0.37 Mton-year exposure of Super-Kamiokande Open
A search for proton decay into $e^+/μ^+$ and a $η$ meson has been performed using data from a 0.373 Mton$\cdot$year exposure (6050.3 live days) of Super-Kamiokande. Compared to previous searches this work introduces an improved model of th…
View article: Development of a Data Overflow Protection System for Super-Kamiokande to Maximize Data from Nearby Supernovae
Development of a Data Overflow Protection System for Super-Kamiokande to Maximize Data from Nearby Supernovae Open
Neutrinos from very nearby supernovae, such as Betelgeuse, are expected to generate more than ten million events over 10 s in Super-Kamokande (SK). At such large event rates, the buffers of the SK analog-to-digital conversion board (QBEE) …
View article: New methods and simulations for cosmogenic induced spallation removal in Super-Kamiokande-IV
New methods and simulations for cosmogenic induced spallation removal in Super-Kamiokande-IV Open
Radioactivity induced by cosmic muon spallation is a dominant source of backgrounds for O(10 MeV) neutrino interactions in water Cherenkov detectors. In particular, it is crucial to reduce backgrounds to measure the solar neutrino spectru…
View article: Measurement of the $$\mathrm {{}^{12}C}(e,e')$$ Cross Sections at $$Q^2=0.8\,\textrm{GeV}^2/c^2$$
Measurement of the $$\mathrm {{}^{12}C}(e,e')$$ Cross Sections at $$Q^2=0.8\,\textrm{GeV}^2/c^2$$ Open
We present the findings of a study based on a new inelastic electron-scattering experiment on the $${}^{12}$$ C nucleus focusing on the kinematic region of $$Q^2=0.8\,\textrm{GeV}^2/{c}^2$$ . The measured cross section is…
View article: Measurement of the 12C(e, e') cross sections at Q2 = 0.8 GeV2/c2
Measurement of the 12C(e, e') cross sections at Q2 = 0.8 GeV2/c2 Open
We present the findings of a study based on a new inelastic electron-scattering experiment on the 12C nucleus focusing on the kinematic region of Q2=0.8 GeV2/c2. The measured cross section is sensitive to the transverse response function a…
View article: Measurement of the $\mathrm{{}^{12}C}(e,e')$ cross sections at $Q^2=0.8\,\mathrm{GeV}^2/c^2$
Measurement of the $\mathrm{{}^{12}C}(e,e')$ cross sections at $Q^2=0.8\,\mathrm{GeV}^2/c^2$ Open
We present the findings of a study based on a new inelastic electron-scattering experiment on the ${}^{12}\mathrm{C}$ nucleus focusing on the kinematic region of $Q^2=0.8\,\mathrm{GeV}^2/{c}^2$. The measured cross section is sensitive to t…
View article: Combined Analysis of Neutrino and Antineutrino Charged Current Inclusive Interactions
Combined Analysis of Neutrino and Antineutrino Charged Current Inclusive Interactions Open
This paper presents a combined analysis of muon neutrino and antineutrino charged-current cross sections at kinematics of relevance for the T2K, MINERvA and MicroBooNE experiments. We analyze the sum, difference and asymmetry of neutrino v…
View article: Parametrized uncertainties in the spectral function model of neutrino charged-current quasielastic interactions for oscillation analyses
Parametrized uncertainties in the spectral function model of neutrino charged-current quasielastic interactions for oscillation analyses Open
A substantial fraction of systematic uncertainties in neutrino oscillation experiments stem from the lack of precision in modeling the nuclear target in neutrino-nucleus interactions. Whilst this has driven significant progress in the deve…
View article: New model comparison for semi-inclusive charged-current electron and muon neutrino scattering by <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mmultiscripts><mml:mrow><mml:mi>Ar</mml:mi></mml:mrow><mml:mprescripts/><mml:none/><mml:mrow><mml:mn>40</mml:mn></mml:mrow></mml:mmultiscripts></mml:mrow></mml:math> in the energy range of the MicroBooNE experiment
New model comparison for semi-inclusive charged-current electron and muon neutrino scattering by in the energy range of the MicroBooNE experiment Open
In this work we present a comparison of semi-inclusive muon and electron neutrino cross sections with Ar
View article: Superscaling in the resonance region for neutrino-nucleus scattering: The SuSAv2 dynamical coupled-channels model
Superscaling in the resonance region for neutrino-nucleus scattering: The SuSAv2 dynamical coupled-channels model Open
In this work, the SuSAv2 and dynamical coupled-channels (DCC) models have been combined and tested in the inelastic regime for electron and neutrino reactions on nuclei. The DCC model, an approach to study baryon resonances through electro…
View article: Erratum: Search for Cosmic-Ray Boosted Sub-GeV Dark Matter Using Recoil Protons at Super-Kamiokande [Phys. Rev. Lett. <b>130</b>, 031802 (2023)]
Erratum: Search for Cosmic-Ray Boosted Sub-GeV Dark Matter Using Recoil Protons at Super-Kamiokande [Phys. Rev. Lett. <b>130</b>, 031802 (2023)] Open
This corrects the article DOI: 10.1103/PhysRevLett.130.031802.
View article: Analysis of T2K and MINERνA Semi-Inclusive νμ−12C Measurements
Analysis of T2K and MINERνA Semi-Inclusive νμ−12C Measurements Open
We compare the semi-inclusive νμ−12C cross-section measurements via T2K and MINERνA collaborations with the predictions from the SuSAv2-MEC model implemented in the neutrino event generator GENIE and an unfactorized approach…
View article: Parametrized uncertainties in the spectral function model of neutrino charged-current quasielastic interactions for oscillation analyses
Parametrized uncertainties in the spectral function model of neutrino charged-current quasielastic interactions for oscillation analyses Open
A substantial fraction of systematic uncertainties in neutrino oscillation experiments stem from the lack of precision in modeling the nuclear target in neutrino-nucleus interactions. Whilst this has driven significant progress in the deve…
View article: Search for Astrophysical Electron Antineutrinos in Super-Kamiokande with 0.01% Gadolinium-loaded Water
Search for Astrophysical Electron Antineutrinos in Super-Kamiokande with 0.01% Gadolinium-loaded Water Open
We report the first search result for the flux of astrophysical electron antineutrinos for energies in the gadolinium-loaded Super-Kamiokande (SK) detector. In 2020 June, gadolinium was introduced to the ultrapure water of the SK det…
View article: Electron–Nucleus Scattering in the NEUT Event Generator
Electron–Nucleus Scattering in the NEUT Event Generator Open
The NEUT event generator is a widely used tool to simulate neutrino interactions for energies between 10 s of MeV and a few TeV. NEUT plays a crucial role in neutrino oscillation analyses for the T2K and Hyper-K experiments, providing the …
View article: Superscaling in the resonance region for neutrino-nucleus scattering: The SuSAv2-DCC model
Superscaling in the resonance region for neutrino-nucleus scattering: The SuSAv2-DCC model Open
In this work the SuSAv2 and dynamical coupled-channels (DCC) models have been combined and tested in the inelastic regime for electron and neutrino reactions on nuclei. The DCC model, an approach to study baryon resonances through electron…
View article: Weak Neutrino (Antineutrino) Charged-Current Responses and Scaling for Nuclear Matter in the Relativistic Mean Field
Weak Neutrino (Antineutrino) Charged-Current Responses and Scaling for Nuclear Matter in the Relativistic Mean Field Open
A systematic analysis of the weak responses for charged-current quasielastic neutrino-nucleus reactions is presented within the scheme of a fully relativistic microscopic model considering momentum-dependent scalar and vector mean field po…
View article: Measurement of the cosmogenic neutron yield in Super-Kamiokande with gadolinium loaded water
Measurement of the cosmogenic neutron yield in Super-Kamiokande with gadolinium loaded water Open
Cosmic-ray muons that enter the Super-Kamiokande detector cause hadronic showers due to spallation in water, producing neutrons and radioactive isotopes. Those are a major background source for studies of MeV-scale neutrinos and searches f…
View article: Search for astrophysical electron antineutrinos in Super-Kamiokande with 0.01wt% gadolinium-loaded water
Search for astrophysical electron antineutrinos in Super-Kamiokande with 0.01wt% gadolinium-loaded water Open
We report the first search result for the flux of astrophysical electron antineutrinos for energies O(10) MeV in the gadolinium-loaded Super-Kamiokande (SK) detector. In June 2020, gadolinium was introduced to the ultra-pure water of the S…
View article: New model comparison for semi-inclusive charged-current electron and muon neutrino scattering by $^{40}$Ar in the energy range of the MicroBooNE experiment
New model comparison for semi-inclusive charged-current electron and muon neutrino scattering by $^{40}$Ar in the energy range of the MicroBooNE experiment Open
In this work we present a comparison of semi-inclusive muon and electron neutrino cross sections with $^{40}$Ar target measured by the MicroBooNE Collaboration with the predictions of an unfactorized model based on the relativistic distort…
View article: Search for Cosmic-Ray Boosted Sub-GeV Dark Matter Using Recoil Protons at Super-Kamiokande
Search for Cosmic-Ray Boosted Sub-GeV Dark Matter Using Recoil Protons at Super-Kamiokande Open
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 the 1996-2018 period (SKI-IV phase). We searched for an excess of proton recoils above the…
View article: Final state interactions in semi-inclusive neutrino-nucleus scattering: Applications to the T2K and <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>MINER</mml:mi><mml:mi>ν</mml:mi><mml:mi mathvariant="normal">A</mml:mi></mml:math> experiments
Final state interactions in semi-inclusive neutrino-nucleus scattering: Applications to the T2K and experiments Open
We present a complete comparison of semi-inclusive νμ−12C cross section measurements by T2K and MINERνA collaborations with the predictions from the SuSAv2-MEC model implemented in the neutrino-nucleus event generator GENIE and an unfactor…
View article: Searching for neutrinos from solar flares across solar cycles 23 and 24 with the Super-Kamiokande detector
Searching for neutrinos from solar flares across solar cycles 23 and 24 with the Super-Kamiokande detector Open
Neutrinos associated with solar flares (solar-flare neutrinos) provide information on particle acceleration mechanisms during the impulsive phase of solar flares. We searched using the Super-Kamiokande detector for neutrinos from solar fla…