T. J. C. Bezerra
A5108070241- Neutrino Physics Research
- Particle physics theoretical and experimental studies
- Astrophysics and Cosmic Phenomena
- Dark Matter and Cosmic Phenomena
- Radiation Detection and Scintillator Technologies
- Particle Detector Development and Performance
- Atomic and Subatomic Physics Research
- Muon and positron interactions and applications
- Quantum, superfluid, helium dynamics
- Nuclear Physics and Applications
- Particle accelerators and beam dynamics
- Medical Imaging Techniques and Applications
- Noncommutative and Quantum Gravity Theories
- Quantum Chromodynamics and Particle Interactions
- Quantum Mechanics and Applications
- Muscle activation and electromyography studies
- Cardiovascular and exercise physiology
- Radiation Therapy and Dosimetry
- Advanced NMR Techniques and Applications
- Nuclear Issues and Defense
- Cardiac Imaging and Diagnostics
- Particle Accelerators and Free-Electron Lasers
- Cold Atom Physics and Bose-Einstein Condensates
- Radioactive contamination and transfer
- Sinusitis and nasal conditions
Sussex County Community College
2024-2025
University of Sussex
2021-2025
Institut National de Physique Nucléaire et de Physique des Particules
2018-2024
IMT Atlantique
2018-2024
Laboratoire de Physique Subatomique et des Technologies Associées
2016-2024
Nantes Université
2016-2024
Centre National de la Recherche Scientifique
2016-2024
Federico Santa María Technical University
2022
Universidade Estadual de Londrina
2022
A. Alikhanyan National Laboratory
2022
The Double Chooz experiment presents an indication of reactor electron antineutrino disappearance consistent with neutrino oscillations. An observed-to-predicted ratio events 0.944±0.016(stat)±0.040(syst) was obtained in 101 days running at the nuclear power plant France, two 4.25 GW(th) reactors. results were from a single 10 m(3) fiducial volume detector located 1050 m cores. flux prediction used Bugey4 measurement after correction for differences core composition. deficit can be...
The Double Chooz experiment has observed 8249 candidate electron antineutrino events in 227.93 live days with 33.71 GW-ton-years ($\mathrm{\text{reactor power}}\ifmmode\times\else\texttimes\fi{}\mathrm{\text{detector mass}}\ifmmode\times\else\texttimes\fi{}\mathrm{\text{live time}}$) exposure using a $10.3\text{ }\text{ }{\mathrm{m}}^{3}$ fiducial volume detector located at 1050 m from the reactor cores of nuclear power plant France. expectation case ${\ensuremath{\theta}}_{13}=0$ is 8937...
The Double Chooz experiment presents improved measurements of the neutrino mixing angle θ 13 using data collected in 467.90 live days from a detector positioned at an average distance 1050 m two reactor cores nuclear power plant. Several novel techniques have been developed to achieve significant reductions backgrounds and systematic uncertainties with respect previous publications, whereas efficiency $$ {\overline{\nu}}_e signal has increased. value is measured be sin2 2θ = 0.090 − 0.029 +...
The Double Chooz experiment has determined the value of neutrino oscillation parameter $\theta_{13}$ from an analysis inverse beta decay interactions with neutron capture on hydrogen. This uses a three times larger fiducial volume than standard assessment, which is restricted to region doped gadolinium (Gd), yielding exposure 113.1 GW-ton-years. data sample used in this distinct that Gd analysis, and systematic uncertainties are also largely independent, some exceptions, such as reactor flux...
Abstract The ProtoDUNE-SP detector is a single-phase liquid argon time projection chamber (LArTPC) that was constructed and operated in the CERN North Area at end of H4 beamline. This prototype for first far module Deep Underground Neutrino Experiment (DUNE), which will be Sandford Research Facility (SURF) Lead, South Dakota, U.S.A. incorporates full-size components as designed DUNE has an active volume 7 × 6 7.2 m 3 . beam delivers incident particles with well-measured momenta high-purity...
The Double Chooz collaboration presents a measurement of the neutrino mixing angle θ 13 using reactor $$ \overline{\nu_{\mathrm{e}}} observed via inverse beta decay reaction in which neutron is captured on hydrogen. This based 462.72 live days data, approximately twice as much data previous such analysis, collected with detector positioned at an average distance 1050 m from two cores. Several novel techniques have been developed to achieve significant reductions backgrounds and systematic...
We present a search for Lorentz violation with 8249 candidate electron antineutrino events taken by the Double Chooz experiment in 227.9 live days of running. This analysis, featuring sidereal time dependence events, is first test invariance using reactor-based source. No variation data and disappearance results are consistent independent oscillations. Under Standard-Model Extension, we set limits on 14 violating coefficients associated transitions between tau flavor, two competitive muon flavor.
We report a search for neutrino oscillations to sterile neutrinos under model with three active and one (<a:math xmlns:a="http://www.w3.org/1998/Math/MathML" display="inline"><a:mrow><a:mn>3</a:mn><a:mo>+</a:mo><a:mn>1</a:mn></a:mrow></a:math> model). This analysis uses the NOvA detectors exposed NuMI beam, running in mode. The data exposure, <c:math xmlns:c="http://www.w3.org/1998/Math/MathML"...
Double- and single-differential cross sections for inclusive charged-current <a:math xmlns:a="http://www.w3.org/1998/Math/MathML" display="inline"><a:msub><a:mi>ν</a:mi><a:mi>μ</a:mi></a:msub></a:math>-nucleus scattering are reported the kinematic domain 0 to <c:math xmlns:c="http://www.w3.org/1998/Math/MathML" display="inline"><c:mrow><c:mn>2</c:mn><c:mtext> </c:mtext><c:mtext> </c:mtext><c:mi>GeV</c:mi><c:mo>/</c:mo><c:mi>c</c:mi></c:mrow></c:math> in three-momentum transfer 2 GeV...
The oscillation results published by the Double Chooz Collaboration in 2011 and 2012 rely on background models substantiated reactor-on data. In this analysis, we present a background-model-independent measurement of mixing angle θ13 including 7.53 days reactor-off A global fit observed antineutrino rates for different reactor power conditions is performed, yielding both total rate. are improved significantly data fit, as it provides direct This rate modulation analysis considers candidates...
The Deep Underground Neutrino Experiment (DUNE) will produce world-leading neutrino oscillation measurements over the lifetime of experiment. In this work, we explore DUNE's sensitivity to observe charge-parity violation (CPV) in sector, and resolve mass ordering, for exposures up 100 kiloton-megawatt-calendar years (kt-MW-CY), where calendar include an assumption 57% accelerator uptime based on past performance at Fermilab. analysis includes detailed uncertainties flux prediction,...
We find that it is possible to increase sensitivity low energy physics in a third or fourth DUNE-like module with careful controls over radiopurity and targeted modifications detector similar the DUNE Far Detector design. In particular, supernova solar neutrinos can be enhanced improved MeV-scale reach. A neutrinoless double beta decay search $^{136}$Xe loading appears feasible. Furthermore, Weakly-Interacting Massive Particle (WIMP) Dark Matter (DM) becomes competitive planned world program...
Abstract In 1956 Reines & Cowan discovered the neutrino using a liquid scintillator detector. The neutrinos interacted with scintillator, producing light that propagated across transparent volumes to surrounding photo-sensors. This approach has remained one of most widespread and successful detection technologies used since. article introduces concept breaks conventional paradigm transparency by confining collecting near its creation point an opaque dense array optical fibres. technique,...
This article describes the setup and performance of near far detectors in Double Chooz experiment. The electron antineutrinos nuclear power plant were measured two identically designed with different average baselines about 400 m 1050 from reactor cores. Over many years data taking neutrino signals extracted interactions goal measuring a fundamental parameter context oscillation, mixing angle {\theta}13. central part was main detector comprising four cylindrical volumes filled organic...
We propose a definite search for sterile neutrinos at the J-PARC Materials and Life Science Experimental Facility (MLF). With 3 GeV Rapid Cycling Synchrotron (RCS) spallation neutron target, an intense neutrino beam from muon decay rest (DAR) is available. Neutrinos come \mu+ decay, oscillation to be searched (anti \nu \mu -> anti e) which detected by inverse \beta interaction e + p e+ n), followed gamma capture. The unique features of proposed experiment, compared with LSND experiments...
Double Chooz is unique among modern reactor-based neutrino experiments studying $\bar \nu_e$ disappearance in that data can be collected with all reactors off. In this paper, we present from 7.53 days of reactor-off running. Applying the same selection criteria as used reactor-on oscillation analysis, a measured background rate 1.0$\pm$0.4 events/day obtained. The model for accidentals, cosmogenic $\beta$-$n$-emitting isotopes, fast neutrons cosmic muons, and stopped-$\mu$ decays analysis...
Introduction In subjects with obstructive respiratory diseases the increased work of breathing during exercise can trigger greater recruitment and fatigue muscles. Associated these changes, lower limb muscle dysfunctions, further contribute to limitations. We aimed assess electrical activity two one locomotor Incremental Shuttle Walking Test (ISWT) in individuals compare healthy. Methods This is a case-control study. Seventeen asthma (asthma group) fifteen chronic pulmonary disease (COPD...
NOvA is a long-baseline neutrino oscillation experiment that measures oscillations in charged-current <a:math xmlns:a="http://www.w3.org/1998/Math/MathML" display="inline"><a:mrow><a:msub><a:mrow><a:mi>ν</a:mi></a:mrow><a:mrow><a:mi>μ</a:mi></a:mrow></a:msub><a:mo stretchy="false">→</a:mo><a:msub><a:mrow><a:mi>ν</a:mi></a:mrow><a:mrow><a:mi>μ</a:mi></a:mrow></a:msub></a:mrow></a:math> (disappearance) and <d:math xmlns:d="http://www.w3.org/1998/Math/MathML"...
This Letter reports a search for charge-parity (<a:math xmlns:a="http://www.w3.org/1998/Math/MathML" display="inline"><a:mrow><a:mi>C</a:mi><a:mi>P</a:mi></a:mrow></a:math>) symmetry violating nonstandard interactions (NSI) of neutrinos with matter using the NOvA Experiment, and examines their effects on determination standard oscillation parameters. Data from <c:math xmlns:c="http://www.w3.org/1998/Math/MathML"...
A study on cosmic muons has been performed for the two identical near and far neutrino detectors of Double Chooz experiment, placed at $\sim$120 $\sim$300 m.w.e. underground respectively, including corresponding simulations using MUSIC simulation package. This characterization allowed to measure muon flux reaching both be (3.64 $\pm$ 0.04) $\times$ 10$^{-4}$ cm$^{-2}$s$^{-1}$ detector (7.00 0.05) 10$^{-5}$ one. The seasonal modulation signal also studied observing a positive correlation with...
The Double Chooz experiment measures the neutrino mixing angle θ 13 by detecting reactor $$ {\overline{\nu}}_e via inverse beta decay. positron-neutron space and time coincidence allows for a sizable background rejection, nonetheless liquid scintillator detectors would profit from positron/electron discrimination, if feasible in large detector, to suppress remaining background. Standard particle identification, based on dependent profile of photon emission scintillator, can not be used given...
We present a search for signatures of neutrino mixing electron anti-neutrinos with additional hypothetical sterile flavors using the Double Chooz experiment. The is based on data from 5 years operation Chooz, including 2 in two-detector configuration. analysis profile likelihood, i.e.\ comparing to model prediction disappearance data-to-data comparison two respective detectors. optimized three active and one neutrino. It sensitive typical mass range $5 \cdot 10^{-3} $ eV$^2 \lesssim \Delta...
The phenomenon of neutrino oscillations is the most significant evidence in experimental particle physics that points to existence Physics Beyond Standard Model, and it opened a window for several interesting new investigations field physics. Among possibilities, Non-Standard Interactions (NSI) are an extension matter effect leading rich phenomenology. These NSI expected modify propagation neutrinos through matter. current open questions oscillation model rely heavily on how interact with...