A5016334969- Neutrino Physics Research
- Particle physics theoretical and experimental studies
- Astrophysics and Cosmic Phenomena
- Dark Matter and Cosmic Phenomena
- Particle Detector Development and Performance
- Radiation Detection and Scintillator Technologies
- Atomic and Subatomic Physics Research
- Particle accelerators and beam dynamics
- Muon and positron interactions and applications
- High-Energy Particle Collisions Research
- Nuclear physics research studies
- Quantum Chromodynamics and Particle Interactions
- Nuclear Physics and Applications
- Quantum, superfluid, helium dynamics
- Planetary Science and Exploration
- Particle Accelerators and Free-Electron Lasers
- Monoclonal and Polyclonal Antibodies Research
- Immune Cell Function and Interaction
- Radiation Therapy and Dosimetry
- Genetics, Bioinformatics, and Biomedical Research
- Toxin Mechanisms and Immunotoxins
- Superconducting Materials and Applications
- T-cell and B-cell Immunology
- Biomedical Text Mining and Ontologies
- Advanced NMR Techniques and Applications
Universitat de València
2016-2025
Instituto de Física Corpuscular
2015-2024
Groupe Hospitalier Cochin - Port-Royal, Hôtel-Dieu, Broca - La Collégiale
2024
Assistance Publique – Hôpitaux de Paris
2024
Universitat Politècnica de València
2023
Weizmann Institute of Science
2023
Universidade de Santiago de Compostela
2023
Universidad de Zaragoza
2016-2023
Instituto de Instrumentación para Imagen Molecular
2023
Joint Institute for Nuclear Research
2009-2023
The MiniBooNE Collaboration reports first results of a search for $\nu_e$ appearance in $\nu_\mu$ beam. With two largely independent analyses, we observe no significant excess events above background reconstructed neutrino energies 475 MeV. data are consistent with oscillations within appearance-only oscillation model.
The MiniBooNE experiment at Fermilab reports results from a search for ${\overline{\ensuremath{\nu}}}_{\ensuremath{\mu}}\ensuremath{\rightarrow}{\overline{\ensuremath{\nu}}}_{e}$ oscillations, using data sample corresponding to $5.66\ifmmode\times\else\texttimes\fi{}{10}^{20}$ protons on target. An excess of $20.9\ifmmode\pm\else\textpm\fi{}14.0$ events is observed in the energy range $475<{E}_{\ensuremath{\nu}}^{\mathrm{QE}}<1250\text{ }\text{ }\mathrm{MeV}$, which, when constrained by...
A high-statistics sample of charged-current muon neutrino scattering events collected with the MiniBooNE experiment is analyzed to extract first measurement double differential cross section ($\frac{d^2\sigma}{dT_\mu d\cos\theta_\mu}$) for quasielastic (CCQE) on carbon. This result features minimal model dependence and provides most complete information this process date. With assumption CCQE scattering, absolute as a function energy ($\sigma[E_\nu]$) single ($\frac{d\sigma}{dQ^2}$) are...
The MiniBooNE Collaboration observes unexplained electronlike events in the reconstructed neutrino energy range from 200 to 475 MeV. With $6.46\ifmmode\times\else\texttimes\fi{}{10}^{20}$ protons on target, 544 are observed this range, compared an expectation of $415.2\ifmmode\pm\else\textpm\fi{}43.4$ events, corresponding excess $128.8\ifmmode\pm\else\textpm\fi{}20.4\ifmmode\pm\else\textpm\fi{}38.3$ events. shape several kinematic variables is consistent with being due either...
The Booster Neutrino Experiment (MiniBooNE) searches for numu-to-nue oscillations using the O(1 GeV) neutrino beam produced by synchrotron at Fermi National Accelerator Laboratory (FNAL). delivers protons with 8 GeV kinetic energy (8.89 GeV/c momentum) to a beryllium target, producing neutrinos from decay of secondary particles in line. We describe Monte Carlo simulation methods used estimate flux beamline incident on MiniBooNE detector both polarities focussing horn. uses Geant4 framework...
Abstract Neutrinos are the only particles in Standard Model that could be Majorana fermions, is, completely neutral fermions their own antiparticles. The most sensitive known experimental method to verify whether neutrinos is search for neutrinoless double-beta decay. last 2 decades have witnessed development of a vigorous program decay experiments, spanning several isotopes and developing different strategies handle backgrounds masking possible signal. In addition, remarkable progress has...
The conclusions of the Physics Working Group international scoping study a future Neutrino Factory and super-beam facility (the ISS) are presented. ISS was carried by community between NuFact05, 7th International Workshop on Factories Superbeams, Laboratori Nazionali di Frascati, Rome, June 21-26, 2005) NuFact06 (Ivine, California, 24{30 August 2006). physics case for an extensive experimental programme to understand properties neutrino is presented role high-precision measurements...
The observation of neutrino oscillations is clear evidence for physics beyond the standard model. To make precise measurements this phenomenon, oscillation experiments, including MiniBooNE, require an accurate description charged current quasielastic (CCQE) cross sections to predict signal samples. Using a high-statistics sample νμ CCQE events, MiniBooNE finds that simple Fermi gas model, with appropriate adjustments, accurately characterizes events observed in carbon-based detector....
We investigate adding two sterile neutrinos to resolve the apparent tension existing between short-baseline neutrino oscillation results and CPT-conserving, four-neutrino models. For both $(3+1)$ $(3+2)$ models, level of statistical compatibility combined dataset from null experiments Bugey, CHOOZ, CCFR84, CDHS, KARMEN, NOMAD, on one hand; LSND dataset, other, is computed. A analysis all seven experiments, including LSND, also performed, obtain favored regions in mass mixing parameter space...
We report a measurement of the flux-averaged neutral-current elastic differential cross section for neutrinos scattering on mineral oil (${\mathrm{CH}}_{2}$) as function four-momentum transferred squared, ${Q}^{2}$. It is obtained by measuring kinematics recoiling nucleons with kinetic energy greater than 50 MeV which are readily detected in MiniBooNE. This cross-section distribution fit fixed nucleon form factors apart from an axial mass ${M}_{A}$ that provides best...
Using a high-statistics, high-purity sample of ${\ensuremath{\nu}}_{\ensuremath{\mu}}$-induced charged current, pion events in mineral oil (${\mathrm{CH}}_{2}$), MiniBooNE reports collection interaction cross sections for this process. This includes measurements the $\mathrm{CC}{\ensuremath{\pi}}^{+}$ section as function neutrino energy, well flux-averaged single- and double-differential energy direction both final-state muon pion. In addition, each single-differential are extracted to...
NEXT-100 is an electroluminescent high-pressure xenon gas time projection chamber that will search for the neutrinoless double beta (0νββ) decay of 136Xe. The detector possesses two features great value 0νββ searches: energy resolution better than 1% FWHM at Q 136Xe and track reconstruction discrimination signal background events. This combination results in excellent sensitivity, as discussed this paper. Material-screening measurements a detailed Monte Carlo simulation predict rate most 4 ×...
In this Technical Design Report (TDR) we describe the NEXT-100 detector that will search for neutrinoless double beta decay (ββ0ν) in 136XE at Laboratorio Subterráneo de Canfranc (LSC), Spain. The document formalizes design presented our Conceptual (CDR): an electroluminescence time projection chamber, with separate readout planes calorimetry and tracking, located, respectively, behind cathode anode. is designed to hold a maximum of about 150 kg xenon 15 bar, or 100 10 bar. This option...
The MiniBooNE Collaboration reports initial results from a search for ${\overline{\ensuremath{\nu}}}_{\ensuremath{\mu}}\ensuremath{\rightarrow}{\overline{\ensuremath{\nu}}}_{e}$ oscillations. A signal-blind analysis was performed using data sample corresponding to $3.39\ifmmode\times\else\texttimes\fi{}{10}^{20}$ protons on target. are consistent with background prediction across the full range of neutrino energy reconstructed assuming quasielastic scattering,...
MiniBooNE reports the first absolute cross sections for neutral current single ${\ensuremath{\pi}}^{0}$ production on ${\mathrm{CH}}_{2}$ induced by neutrino and antineutrino interactions measured from largest sets of NC events collected to date. The principal result consists differential as functions momentum angle averaged over flux at MiniBooNE. We find total...
Using a custom 3-Čerenkov ring fitter, we report cross sections for νμ-induced charged-current single π0 production on mineral oil (CH2) from sample of 5810 candidate events with 57% signal purity over an energy range 0.5–2.0 GeV. This includes measurements the absolute total section as function neutrino energy, and flux-averaged differential measured in terms Q2, μ− kinematics, kinematics. The yields (9.2±0.3stat±1.5syst)×10−39 cm2/CH2 at mean 0.965 GeV.7 MoreReceived 15 October...
The SciBooNE Collaboration reports a measurement of inclusive charged current interactions muon neutrinos on carbon with an average energy 0.8 GeV using the Fermilab Booster Neutrino Beam. We compare our two neutrino interaction simulations: NEUT and NUANCE. rates (product flux cross section) are extracted by fitting kinematics, precision 6-15% for dependent 3% integrated analyses. also extract CC sections from observed rates, 10-30% 8% This is first section around 1 GeV. These results can...
The sidereal time dependence of MiniBooNE νe and ν¯e appearance data is analyzed to search for evidence Lorentz CPT violation. An unbinned Kolmogorov–Smirnov (K–S) test shows both the are compatible with null variation hypothesis more than 5%. Using an likelihood fit a Lorentz-violating oscillation model derived from Standard Model Extension (SME) describe any excess events over background, we find that prefer time-independent solution, slightly time-dependent solution. Limits order 10−20GeV...
A new method to tag the barium daughter in double-beta decay of ^{136}Xe is reported. Using technique single molecule fluorescent imaging (SMFI), individual dication (Ba^{++}) resolution at a transparent scanning surface demonstrated. single-step photobleach confirms ion interpretation. Individual ions are localized with superresolution (∼2 nm), and detected statistical significance 12.9σ over backgrounds. This lays foundation for potentially background-free neutrinoless technology, based on...
NEXT is an experiment dedicated to neutrinoless double beta decay searches in xenon. The detector a TPC, holding 100 kg of high-pressure xenon enriched the 136 Xe isotope. It under construction Laboratorio Subterráneo de Canfranc Spain, and it will begin operations 2015. concept provides energy resolutionbetter than 1% FWHM topological signal that can be used reduce background. Furthermore, technology extrapolated 1 ton-scale experiment.
The NEXT experiment aims to observe the neutrinoless double beta decay of 136Xe in a high-pressure xenon gas TPC using electroluminescence (EL) amplify signal from ionization. One main advantages this technology is possibility reconstruct topology events with energies close Q ββ . This paper presents first demonstration that provides extra handles reject background data obtained NEXT-DEMO prototype. Single electrons resulting interactions 22Na 1275 keV gammas and electronpositron pairs...
A bstract The Neutrino Experiment with a Xenon TPC (NEXT) searches for the neutrinoless double-beta (0 νββ ) decay of 136 Xe using high-pressure xenon gas TPCs electroluminescent amplification. scaled-up version this technology about 1 tonne enriched could reach in less than 5 years operation sensitivity to half-life 0 better 10 27 years, improving current limits by at least one order magnitude. This prediction is based on well-understood background model dominated radiogenic sources....