A5013559758- Astrophysics and Cosmic Phenomena
- Dark Matter and Cosmic Phenomena
- Neutrino Physics Research
- Particle physics theoretical and experimental studies
- Gamma-ray bursts and supernovae
- Radio Astronomy Observations and Technology
- Particle Detector Development and Performance
- Nuclear physics research studies
- Atmospheric Ozone and Climate
- Radiation Detection and Scintillator Technologies
- Pulsars and Gravitational Waves Research
- Astrophysical Phenomena and Observations
- High-Energy Particle Collisions Research
- Atmospheric aerosols and clouds
- Particle Accelerators and Free-Electron Lasers
- Ionosphere and magnetosphere dynamics
- Radiation Therapy and Dosimetry
- Quantum Chromodynamics and Particle Interactions
- Nuclear Physics and Applications
- Cosmology and Gravitation Theories
- Solar and Space Plasma Dynamics
- Calibration and Measurement Techniques
- Atomic and Molecular Physics
- Radioactivity and Radon Measurements
- Photocathodes and Microchannel Plates
Charles University
2016-2025
Institut d'Estudis Espacials de Catalunya
2024
Universitat de Barcelona
2024
National Technological University
2016-2023
Institute of Scientific and Technical Research for Defense
2016-2023
Consejo Nacional de Investigaciones Científicas y Técnicas
2011-2023
Instituto de Tecnologías en Detección y Astropartículas
2016-2023
Pierre Auger Observatory
2007-2023
National University of General San Martín
2016-2023
Universidad Nacional de La Plata
2011-2023
A comprehensive review of the present understanding, both theoretical and experimental, intrinsic rotational level structures in medium-heavy deformed odd-odd nuclei is presented. discussion various experimental methods presented, emphasizing need for a variety approaches. The that are immediately amenable to fruitful additional study pointed out. structures, Gallagher-Moszkowski (GM) splittings, Newby (N) shifts, role residual $p\ensuremath{-}n$ interaction Currently available data...
We present a discovery and observation of an extraordinarily bright prompt optical emission the GRB 060117 obtained by wide-field camera atop robotic telescope FRAM Pierre Auger Observatory from 2 to 10 minutes after GRB. found rapid average temporal flux decay alpha = -1.7 +- 0.1 peak brightness R 10.1 mag. Later observations other instruments set strong limit on radio transient fluxes, unveiling unexpectedly further decay. interpretation featuring relatively steep electron-distribution...
The residual p-n interaction in doubly odd deformed nuclei is examined the framework of unified model. Extensive experimental information about Gallagher-Moszkowski splitting energies and Newby shifts rare-earth actinide regions used to deduce empirical parameters interaction. Delta Gaussian-shape radial potential are assumed, Empirical discussed compared with previously deduced parameters. For first time, errors estimated special attention paid parameter significance.
The well deformed atomic nucleus $^{159}\mathrm{Gd}$ was investigated by means of radiative neutron capture and single transfer reactions. Nearly 70 secondary $\ensuremath{\gamma}$ rays from the $(n,\ensuremath{\gamma})$ reaction studied with high-resultion bent-crystal spectrometers at Grenoble are assigned to $^{159}\mathrm{Gd}$. About 200 levels spin up $\frac{11}{2}$ observed in this below $2.3\phantom{\rule{0.3em}{0ex}}\mathrm{MeV}$ $(d,p)$ $(\mathbf{d},t)$ reactions Tandem Van de...
FRAM - F/(Ph)otometric Robotic Atmospheric Monitor is the latest addition to atmospheric monitoring instruments of Pierre Auger Observatory. An optical telescope equipped with CCD camera and photometer, it automatically observes a set selected standard stars calibrated terrestrial source. Primarily, wavelength dependence attenuation derived comparison between its vertical values (for stars) horizontal source) made. Further, integral aerosol depth can be obtained. A secondary program...
The experimental level structure of $^{223}\mathrm{Fr}$ has been studied using the 1.4% alpha decay 21.8 yr $^{227}\mathrm{Ac}$ and subsequent gamma rays to extend scheme recently observed following ${\mathrm{\ensuremath{\beta}}}^{\mathrm{\ensuremath{-}}}$ $^{223}\mathrm{Rn}$. was also theoretically by quasiparticle model Soloviev with octupole degrees freedom. Both experimentally there is strong evidence that reflection asymmetric. theoretical study microscopic several positive-parity bands...
The level structure of $^{227}\mathrm{Th}$ has been studied using the electron capture decay $^{227}\mathrm{Pa}$ and ${\mathrm{\ensuremath{\beta}}}^{\mathrm{\ensuremath{-}}}$ $^{227}\mathrm{Ac}$ to give a total 20 levels where only four were previously known. This then makes possible more complete interpretation recently $^{231}\mathrm{U}$ alpha into $^{227}\mathrm{Th}$. can be interpreted both strong coupling intermediate models in terms...
We present a new method to infer the mass composition of ultra-high energy cosmic rays performing simultaneous modifications simulated depth shower maximu ($X_{\rm max}$) and ground signal. introduce likelihood fit two-dimensional distributions "hybrid observables", $X_{\rm max}$ signal induced by muons electromagnetic particles at different zenith angles. With this method, fractions primary are simultaneously estimated together with shift multiplicative rescaling parameters muon signals in...
A way of examining a hypothetical non--zero $γ$--ray signal for the time changes is presented. The variability recently observed source PKS 2155--304 discussed. Several measurements were found to be excessive or deficient with large significances on scales months and days.
Large surface arrays of current cosmic ray experiments measure the signals electromagnetic or muonic components their combination. The correction to zenith angle (the attenuation curve) has be taken into account before signal is converted shower energy. Either Monte Carlo simulations indirect estimation using collected data (Constant Intensity Cut method) can used. However, assumptions composition isotropy used for determination curve still influence final physics results such as energy...
Microscopic structures of the low-lying intrinsic bands in odd-neutron N = 91 153 Sm , 155 Gd and 93 nuclei near onset quadrupole deformation region are investigated with special attention being paid to formation octupole collectivity. Octupole correlations between nonrotational states analyzed using a model Hamiltonian containing an axially symmetric mean field, pairing, quadrupole-quadrupole octupole-octupole interactions. In addition, strong ΔK 0 E1 transitions examined. These...
The Cherenkov Telescope Array (CTA) will be the next generation observatory employing different types of telescopes for detection particle showers initiated by very-high-energy gamma rays. A good knowledge Earth's atmosphere, which acts as a calorimeter in technique, crucial calibration CTA. Variations atmosphere's transparency to light and not correctly performed individual array result large systematic uncertainties on energy scale. Transparency Coefficient (CTC), developed within H.E.S.S....