A. Tolosa-Delgado
A5055866072- Nuclear physics research studies
- Nuclear Physics and Applications
- Astronomical and nuclear sciences
- Nuclear reactor physics and engineering
- Atomic and Molecular Physics
- Radiation Detection and Scintillator Technologies
- Atomic and Subatomic Physics Research
- Language Development and Disorders
- Particle physics theoretical and experimental studies
- Genetics and Neurodevelopmental Disorders
- Dark Matter and Cosmic Phenomena
- Astro and Planetary Science
- Neuroscience and Neuropharmacology Research
- Advanced NMR Techniques and Applications
- Neurotransmitter Receptor Influence on Behavior
- Neutrino Physics Research
- X-ray Spectroscopy and Fluorescence Analysis
- Schizophrenia research and treatment
- Cannabis and Cannabinoid Research
- Bipolar Disorder and Treatment
- Williams Syndrome Research
- Rare-earth and actinide compounds
- Advanced Semiconductor Detectors and Materials
- Regulation of Appetite and Obesity
- Glycogen Storage Diseases and Myoclonus
Universitat de València
2008-2025
Instituto de Física Corpuscular
2017-2025
University of Jyväskylä
2022-2025
European Organization for Nuclear Research
2025
University of Freiburg
2012
Spanish Clinical Research Network
2012
Centro de Investigación Biomédica en Red de Salud Mental
2010-2011
Schizophrenia is considered a language related human specific disease. Previous studies have reported evidence of positive selection for schizophrenia-associated genes to the lineage. FOXP2 shows two important features as convincing candidate gene schizophrenia vulnerability: first disorder, and it has been subject in Twenty-seven SNPs were genotyped cohort 293 patients with 340 controls. We analyzed particular association poverty speech intensity auditory hallucinations. Potential expansion...
A mutation in the FOXP2 gene has been first genetic association with a language disorder. Language disorder is considered as core symptom of schizophrenia. Therefore, could be good candidate for vulnerability to schizophrenia.A set single nucleotide polymorphisms mainly located 5' regulatory region was analysed sample 186 DSM-IV schizophrenic patients auditory hallucinations and 160 healthy controls.Statistically significant differences genotype (P=0.007) allele frequencies (P=0.0027)...
Atomic nuclei serve as prime laboratories for investigations of complex quantum phenomena, where minor nucleon rearrangements cause significant structural changes.
The complex low-spin structure of the proton-rich 11453I61 nucleus has been investigated with JUROGAM 3 germanium array coupled MARA mass separator using 58Ni(64Zn,𝛼3pn) fusion-evaporation reaction. depopulation previously known high-spin bands to states is firmly established, fixing excitation energies, spins and parities states. present results combined fragmentary communications published from decay separated mass-114 beams measured long time ago at ORNL GSI, led conclusion that 6 s,...
At a fundamental level, the interactions between protons and protons, neutrons, neutrons are not identical. Such isospin nonconserving emerge when comparing excitation energy of analog states in T=1 triplet nuclei. Here, we extend such an analysis to A=78, system-the heaviest system for which complete data exists-and find strong disagreement with contemporary theory. This was achieved by pioneering technique recoil-β-β tagging identify excited ^{78}Zr. We also established ^{78}Zr half-life...
Abstract We present the discovery of a new isotope 98Sn beyond double magic N = Z 50 nucleus 100Sn. was identified among projectile-fragmentation products 124Xe beam at 345 MeV/nucleon RI Beam Factory, RIKEN, Japan. Additionally, we have confirmed production 96In and 94Cd, previously reported as isotopes RIKEN. These highly proton-rich nuclei were separated using large-acceptance two-stage separator BigRIPS. Furthermore, determined cross sections its neighboring nuclei. experimental values...
The conceptual design of the BRIKEN neutron detector at radioactive ion beam factory (RIBF) RIKEN Nishina Center is reported. setup a complex system aimed detecting heavy-ion implants, β particles, γ rays and β-delayed neutrons. whole includes Advanced Implantation Detection Array (AIDA), two HPGe Clover detectors up to 166 3He-filled counters embedded in high-density polyethylene moderator. quite due large number different types 3He-tubes involved additional constraints introduced by...
Theoretical models of β-delayed neutron emission are used as crucial inputs in r-process calculations. Benchmarking the predictions these is a challenge due to lack currently available experimental data. In this work probabilities 33 nuclides important mass regions south and south-west 132Sn presented, 16 for first time. The measurements were performed at RIKEN using Advanced Implantation Detector Array (AIDA) BRIKEN detector array. P1n values presented constrain theoretical region,...
Neutron emission probabilities and half-lives of 37 <a:math xmlns:a="http://www.w3.org/1998/Math/MathML" display="inline"><a:mrow><a:mi>β</a:mi></a:mrow></a:math>-delayed neutron emitters from <c:math xmlns:c="http://www.w3.org/1998/Math/MathML" display="inline"><c:mrow><c:mmultiscripts><c:mrow><c:mi>Ni</c:mi></c:mrow><c:mprescripts/><c:none/><c:mrow><c:mn>75</c:mn></c:mrow></c:mmultiscripts></c:mrow></c:math> to <e:math xmlns:e="http://www.w3.org/1998/Math/MathML"...
Using the fusion-evaporation reaction ^{96}Ru(^{58}Ni,p4n)^{149}Lu and MARA vacuum-mode recoil separator, a new proton-emitting isotope ^{149}Lu has been identified. The measured decay Q value of 1920(20) keV is highest for ground-state proton decay, it naturally leads to shortest directly half-life 450_{-100}^{+170} ns emitter. rate consistent with l_{p}=5 emission, suggesting dominant πh_{11/2} component wave function state. Through nonadiabatic quasiparticle calculations was concluded...
Abstract The β -delayed neutron-emission probabilities of 28 exotic neutron-rich isotopes Pm, Sm, Eu, and Gd were measured for the first time at RIKEN Nishina Center using Advanced Implantation Detector Array (AIDA) BRIKEN neutron detector array. existing -decay half-life ( T 1/2 ) database was significantly increased toward more isotopes, uncertainties previously values decreased. new data not only constrain theoretical predictions half-lives probabilities, but also allow probing mechanisms...
The $\ensuremath{\beta}$-delayed one- and two-neutron emission probabilities (${P}_{1n}$ ${P}_{2n}$) of 20 neutron-rich nuclei with $N\ensuremath{\ge}82$ have been measured at the RIBF facility RIKEN Nishina Center. ${P}_{1n}$ $^{130,131}\mathrm{Ag}$, $^{133,134}\mathrm{Cd}$, $^{135,136}\mathrm{In}$, $^{138,139}\mathrm{Sn}$ were determined for first time, stringent upper limits placed on ${P}_{2n}$ nearly all cases. ($\ensuremath{\beta}2n$) was unambiguously identified in $^{133}\mathrm{Cd}$...
Excited states have been observed for the first time in very neutron-deficient odd-odd nucleus 57120La63. The γ rays assigned based on coincidences with lanthanum X measured JUROGAM 3 array and A=120 fusion-evaporation residues MARA separator. form a rotational band which decays to ground state via cascade of four low-energy transitions. Based systematic comparisons heavier La isotopes we assign spin-parity 4+ πh11/2⊗νh11/2 configuration band. nuclear shape has investigated by cranked...
An ambitious program to measure decay properties, primarily β-delayed neutron emission probabilities and half-lives, for a significant number of nuclei near or on the path rapid capture process, has been launched at RIKEN Nishina Center.We give here an overview status project.
$\ensuremath{\beta}$-delayed one-neutron and two-neutron branching ratios $({P}_{1n}$ ${P}_{2n})$ have been measured in the decay of $A=84$ to 87 Ga isotopes at Radioactive-Isotope Beam Factory (RIBF) RIKEN Nishina Center using a high-efficiency array $^{3}\mathrm{He}$ neutron counters (BRIKEN). Two-neutron emission was observed $^{84,85,87}\mathrm{Ga}$ for first time were be ${P}_{2n}=1.6(2)%,1.3(2)%$, $10.2{(28)}_{\mathrm{stat}}{(5)}_{\mathrm{sys}}%$, respectively. One-neutron ratio...
The radioactivity of 76160Os84 and 74156W82 that lie at the two-proton drip line have been measured in an experiment performed Accelerator Laboratory University Jyväskylä. 160Os nuclei were produced using fusion-evaporation reactions induced by a beam 310 MeV 58Ni ions bombarding 106Cd target. separated flight recoil separator MARA implanted into double-sided silicon strip detector, which was used to measure their decays. α decays ground state (Eα = 7092(15) keV, t1/2 97−32+97 μs) its...
Excited states in the $^{70}\mathrm{Kr}$ and $^{70}\mathrm{Br}$ nuclei were populated via $^{40}\mathrm{Ca}(^{32}\mathrm{S},2n)^{70}\mathrm{Kr}$ $^{40}\mathrm{Ca}(^{32}\mathrm{S},pn)^{70}\mathrm{Br}$ fusion-evaporation reactions at Accelerator Laboratory of University Jyv\"askyl\"a. The ${2}^{+}\ensuremath{\longrightarrow}{0}^{+}$ ${4}^{+}\ensuremath{\longrightarrow}{2}^{+}$ transitions have been found to be 881(1) keV (tentatively) 1037(2) keV, respectively. Several new...
Isomer spectroscopy of heavy neutron-rich nuclei beyond the N=126 closed shell has been performed for first time at Radioactive Isotope Beam Factory RIKEN Nishina Center. New millisecond isomers have identified low excitation energies, 985.3(19) keV in Tl213 and 874(5) Tl215. The measured half-lives 1.34(5) ms 3.0(3) Tl215 suggest spins parities 11/2− with single proton-hole configuration πh11/2 as leading component. They are populated via E1 transitions by decay higher-lying isomeric states...
Background: β-delayed multiple neutron emission has been observed for some nuclei with A≤100, being the 100Rb heaviest β2n emitter measured to date. So far, only 25P2n values have determined ≈300 that may decay in this way. Accordingly, it is of interest measure P2n other possible emitters throughout chart nuclides. It particular make such a measurement A>100 test predictions theoretical models and simulation tools decays heavy region very neutron-rich nuclei. In addition, properties these...