S. Cebrián
A5069390792- Dark Matter and Cosmic Phenomena
- Neutrino Physics Research
- Particle Detector Development and Performance
- Particle physics theoretical and experimental studies
- Atomic and Subatomic Physics Research
- Radiation Detection and Scintillator Technologies
- Astrophysics and Cosmic Phenomena
- Nuclear Physics and Applications
- Cosmology and Gravitation Theories
- Radiation Therapy and Dosimetry
- Scientific Research and Discoveries
- Quantum, superfluid, helium dynamics
- Photocathodes and Microchannel Plates
- Muon and positron interactions and applications
- Astronomy and Astrophysical Research
- Superconducting and THz Device Technology
- Nuclear physics research studies
- Solar and Space Plasma Dynamics
- CCD and CMOS Imaging Sensors
- Superconducting Materials and Applications
- E-Learning and Knowledge Management
- Computational Physics and Python Applications
- Gamma-ray bursts and supernovae
- Educational Technology in Learning
- Radioactive contamination and transfer
Universidad de Zaragoza
2016-2025
Canfranc Underground Laboratory
2015-2024
Instituto de Instrumentación para Imagen Molecular
2022-2023
Universitat Politècnica de València
2022-2023
Istituto Nazionale di Fisica Nucleare, Sezione di Napoli
2023
Ben-Gurion University of the Negev
2023
Universitat Politècnica de Catalunya
2023
University of Oxford
2013
Imperial College London
2013
Lawrence Livermore National Laboratory
2006
We have searched for solar axions or similar particles that couple to two photons by using the CERN Axion Solar Telescope (CAST) setup with improved conditions in all detectors. From absence of excess X-rays when magnet was pointing Sun, we set an upper limit on axion-photon coupling 8.8 x 10^{-11} GeV^{-1} at 95% CL m_a <~ 0.02 eV. This result is best experimental over a broad range axion masses and eV also supersedes previous derived from energy-loss arguments globular-cluster stars.
Abstract With the establishment and maturation of experimental programs searching for new physics with sizeable couplings at LHC, there is an increasing interest in broader particle astrophysics community exploring light feebly-interacting particles as a paradigm complementary to New Physics sector TeV scale beyond. FIPs 2020 has been first workshop fully dedicated was held virtually from 31 August 4 September 2020. The gathered together experts collider, beam dump, fixed target experiments,...
The International Germanium Experiment (IGEX) has analyzed 117 mol yr of 76Ge data from its isotopically enriched (86% 76Ge) germanium detectors. Applying pulse-shape discrimination to the more recent data, lower bound on half-life for neutrinoless double-beta decay is T1/2(0ν)>1.57×1025yr (90% C.L.). This corresponds an upper in Majorana neutrino mass parameter, ⟨mν⟩, between 0.33 and 1.35 eV, depending choice theoretical nuclear matrix elements used analysis.Received 29 October...
Hypothetical axionlike particles with a two-photon interaction would be produced in the sun by Primakoff process. In laboratory magnetic field ("axion helioscope"), they transformed into x-rays energies of few keV. Using decommissioned Large Hadron Collider test magnet, CERN Axion Solar Telescope ran for about 6 months during 2003. The first results from analysis these data are presented here. No signal above background was observed, implying an upper limit to axion-photon coupling...
We have searched for solar axions or other pseudoscalar particles that couple to two photons by using the CERN Axion Solar Telescope (CAST) setup. Whereas we previously reported results from CAST with evacuated magnet bores (Phase I), setting limits on lower mass axions, here report where were filled 4He gas II) of variable pressure. The introduction generates a refractive photon mγ, thereby achieving maximum possible conversion rate those axion masses ma match mγ. With 160 different...
A detailed description of the CUORICINO $^{130}\mathrm{Te}$ neutrinoless double-beta $(0 \ensuremath{\nu}\ensuremath{\beta}\ensuremath{\beta})$ decay experiment is given and recent results are reported. an array 62 tellurium oxide (${\mathrm{TeO}}_{2}$) bolometers with active mass 40.7 kg. It cooled to $~8\text{\ensuremath{-}}10$ mK by a dilution refrigerator shielded from environmental radioactivity energetic neutrons. running in Laboratori Nazionali del Gran Sasso (LNGS) Assergi, Italy....
The possibility to probe new physics scenarios of light Majorana neutrino exchange and right-handed currents at the planned next generation neutrinoless double beta decay experiment SuperNEMO is discussed. Its ability study different isotopes track outgoing electrons provides means discriminate underlying mechanisms for by measuring half-life electron angular energy distributions.
We present the case for a dark matter detector with directional sensitivity. This document was developed at 2009 CYGNUS workshop on detection, and contains contributions from theorists experimental groups in field. describe need sensitivity; each experiment presents their project's status; we close feasibility study scaling up to one ton detector, which would cost around $150M.
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 ×...
We review the physics potential of a next generation search for solar axions: International Axion Observatory (IAXO) . Endowed with sensitivity to discover axion-like particles (ALPs) coupling photons as small gaγ∼ 10−12 GeV−1, or electrons gae∼10−13, IAXO has find QCD axion in 1 meV∼1 eV mass range where it solves strong CP problem, can account cold dark matter Universe and be responsible anomalous cooling observed number stellar systems. At same time, will have enough detect lower axions...
ANAIS is a direct detection dark matter experiment aiming at the testing of DAMA/LIBRA annual modulation result, which, for about two decades, has neither been confirmed nor ruled out by any other in model independent way. $\mathrm{ANAIS}\ensuremath{-}112$, consisting 112.5 kg sodium iodide crystals, taking data Canfranc Underground Laboratory, Spain, since August 2017. This Letter presents analysis 1.5 years data, amounting to 157.55 yr. We focus on searching and validation our sensitivity...
ANAIS (Annual modulation with NaI Scintillators) is a dark matter direct detection experiment consisting of 112.5 kg NaI(Tl) detectors in operation at the Canfranc Underground Laboratory (LSC), Spain, since August 2017. ANAIS' goal to confirm or refute model independent way DAMA/LIBRA positive result: an annual low-energy rate having all features expected for signal induced by particles standard galactic halo. This modulation, observed about 20 years, strong tension negative results other...
A bstract This article describes BabyIAXO, an intermediate experimental stage of the International Axion Observatory (IAXO), proposed to be sited at DESY. IAXO is a large-scale axion helioscope that will look for axions and axion-like particles (ALPs), produced in Sun, with unprecedented sensitivity. BabyIAXO conceived test all subsystems (magnet, optics detectors) relevant scale final system thus serve as prototype IAXO, but same time fully-fledged physics reach itself, potential discovery....
Abstract Core-collapse supernovae are among the most magnificent events in observable universe. They produce many of chemical elements necessary for life to exist and their remnants—neutron stars black holes—are interesting astrophysical objects own right. However, despite millennia observations almost a century study, explosion mechanism core-collapse is not yet well understood. Hyper-Kamiokande next-generation neutrino detector that will be able observe flux from next galactic supernova...
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...
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.
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...
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...
The ANAIS (Annual modulation with NaI(Tl) Scintillators) experiment aims at the confirmation or refutation of theDAMA/LIBRA positive annual signal in low energy detection rate, using same target and technique, Canfranc Underground Laboratory (LSC) Spain. ANAIS-112, consisting nine 12.5 kg modules produced by Alpha Spectra Inc. a 3x3matrix configuration, is taking data smoothly "dark matter search" mode since August, 2017, after commissioning phase operation first detectors during last years...
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....