A5086274041- Nuclear physics research studies
- Nuclear Physics and Applications
- Atomic and Molecular Physics
- Astronomical and nuclear sciences
- Advanced Chemical Physics Studies
- Quantum Chromodynamics and Particle Interactions
- Rare-earth and actinide compounds
- Nuclear reactor physics and engineering
- Boron Compounds in Chemistry
- Radiopharmaceutical Chemistry and Applications
- Radioactive Decay and Measurement Techniques
- Astro and Planetary Science
- Mesoporous Materials and Catalysis
- X-ray Spectroscopy and Fluorescence Analysis
- Advanced NMR Techniques and Applications
- Cold Atom Physics and Bose-Einstein Condensates
- Distributed and Parallel Computing Systems
- High-pressure geophysics and materials
- Catalysis and Oxidation Reactions
- Quantum, superfluid, helium dynamics
- Particle Accelerators and Free-Electron Lasers
- Covalent Organic Framework Applications
- Metal-Organic Frameworks: Synthesis and Applications
- Catalytic Processes in Materials Science
- Mass Spectrometry Techniques and Applications
Institute of Modern Physics
2025
University of Chinese Academy of Sciences
2025
KTH Royal Institute of Technology
2018-2024
University of Cologne
2024
Saha Institute of Nuclear Physics
2024
Laboratoire de Physique Corpusculaire de Caen
2023
Centre National de la Recherche Scientifique
2023
Université de Caen Normandie
2023
École Nationale Supérieure d'Ingénieurs de Caen
2023
Normandie Université
2023
Exclusive cross sections and momentum distributions have been measured for quasifree one-neutron knockout reactions from a $^{54}\mathrm{Ca}$ beam striking on liquid hydrogen target at $\ensuremath{\sim}200\text{ }\text{ }\mathrm{MeV}/u$. A significantly larger section to the ${p}_{3/2}$ state compared ${f}_{5/2}$ observed in excitation of $^{53}\mathrm{Ca}$ provides direct evidence nature $N=34$ shell closure. This finding corroborates arising new closure neutron-rich calcium isotopes. The...
The first $\ensuremath{\gamma}$-ray spectroscopy of $^{52}\mathrm{Ar}$, with the neutron number $N=34$, was measured using $^{53}\mathrm{K}(p,2p)$ one-proton removal reaction at $\ensuremath{\sim}210\text{ }\text{ }\mathrm{MeV}/\mathrm{u}$ RIBF facility. ${2}_{1}^{+}$ excitation energy is found 1656(18) keV, highest among Ar isotopes $N>20$. This result experimental signature persistence $N=34$ subshell closure beyond $^{54}\mathrm{Ca}$, i.e., below magic proton $Z=20$. Shell-model...
Evidence for chiral doublet bands has been observed the first time in even-even nucleus $^{136}\mathrm{Nd}$. One band was firmly established. Four other candidates were also identified, which can contribute to realization of multiple pairs ($\mathrm{M}\ensuremath{\chi}\mathrm{D}$) phenomenon. The are investigated by constrained and tilted axis cranking covariant density functional theory (TAC-CDFT). Possible configurations have explored. experimental energy spectra, angular momenta,...
Excited states in the $N=40$ isotone $^{62}$Ti were populated via $^{63}$V$(p,2p)$$^{62}$Ti reaction at $\sim$200~MeV/u Radioactive Isotope Beam Factory and studied using $γ$-ray spectroscopy. The energies of $2^+_1 \rightarrow 0^{+}_{\mathrm{gs}}$ $4^+_1 2^+_1$ transitions, observed here for first time, indicate a deformed ground state. These are increased compared to neighboring $^{64}$Cr $^{66}$Fe isotones, suggesting small decrease quadrupole collectivity. present measurement is well...
We report on the first γ-ray spectroscopy of 51,53K produced via 52,54Ca(p,2p) reactions at ∼250 MeV/nucleon. Unambiguous final-state angular-momentum assignments were achieved for beam intensities down to few particles per second by using a new technique based reaction vertex tracking combined with thick liquid-hydrogen target. Through and exclusive parallel momentum distribution analysis, 3/2+ ground states 1/2+ excited in established quantifying natural ordering 1d3/2 2s1/2 proton-hole...
High-spin states of the odd-odd 136Pr nucleus have been investigated using 100Mo(40Ar, 1𝑝3𝑛) reaction with JUROGAM II 𝛾-ray spectrometer. Many new transitions and levels were identified in addition to confirmation most previously known levels. The high statistics present data set allowed multipolarity assignments for many be established, which assigned tentatively. Possible configuration bands above 𝐼𝜋=6+ isomer are analyzed within tilted axis cranking covariant density functional theory...
Data on the structure of sulphur isotopes close to neutron drip-line are rather scarce. The excited states very neutron-rich \(^{46}\)S and \(^{47}\)S nuclei have been investigated by in-beam gamma-ray spectroscopy at Radioactive Isotope Beam Factory RIKEN Nishina Center. After multi-nucleon knockout reactions liquid-hydrogen MINOS target, \(2^{+}_{1}\rightarrow 0^{+}_{1}\) gamma transition \(^{46}\)S, already reported in literature, has confirmed. Additionally, two new rays assigned this...
Using the high flux of fast neutron beam provided at Neutrons For Science (NFS) facility GANIL-SPIRAL2, high-resolution \(\gamma \)-ray spectroscopy nuclei produced in (\(n,xn\)) reactions is performed with EXOGAM HPGe array. The by (\(n,2n\)) and (\(n,3n\)) channels \(^{58}\)Ni are re-examined through prompt coincidence neutrons to provide a comprehensive possibly new description its level schemes excitation functions. Abstract Published Jagiellonian University 2025 authors
Using the high flux of fast neutron beam provided at Neutrons For Science (NFS) facility GANIL-SPIRAL2, resolution γ -ray spectroscopy nuclei produced in (n,xn) reactions is performed with EXOGAM HPGe array. The by (n,2n) and (n,3n) channels 58 Ni are re-examined through prompt coincidence neutrons to provide a comprehensive possibly new description its level schemes excitation functions.
The low-lying energy spectrum of the extremely neutron-deficient self-conjugate (N=Z) nuclide _{44}^{88}Ru_{44} has been measured using combination Advanced Gamma Tracking Array (AGATA) spectrometer, NEDA and Neutron Wall neutron detector arrays, DIAMANT charged particle array. Excited states in ^{88}Ru were populated via ^{54}Fe(^{36}Ar,2nγ)^{88}Ru^{*} fusion-evaporation reaction at Grand Accélérateur National d'Ions Lourds (GANIL) accelerator complex. observed γ-ray cascade is assigned to...
The one-neutron knockout from ^{52}Ca in inverse kinematics onto a proton target was performed at ∼230 MeV/nucleon combined with prompt γ spectroscopy. Exclusive quasifree scattering cross sections to bound states ^{51}Ca and the momentum distributions corresponding removal of 1f_{7/2} 2p_{3/2} neutrons were measured. sections, interpreted within distorted-wave impulse approximation reaction framework, are consistent shell closure neutron number N=32, found as strong N=28 N=34 Ca isotopes...
Lifetimes of the first excited ${2}^{+}$ and ${4}^{+}$ states in extremely neutron-deficient nuclide $^{172}\mathrm{Pt}$ have been measured for time using recoil-distance Doppler shift recoil-decay tagging techniques. An unusually low value ratio $B(E2:{4}_{1}^{+}\ensuremath{\rightarrow}{2}_{1}^{+})/B(E2:{2}_{1}^{+}\ensuremath{\rightarrow}{0}_{\mathrm{gs}}^{+})=0.55(19)$ was found, similar to a handful other such anomalous cases observed entire Segr\'e chart. The observation adds cluster few...
Direct lifetime measurements via $\ensuremath{\gamma}\text{\ensuremath{-}}\ensuremath{\gamma}$ coincidences using a fast timing detector array consisting of ${\mathrm{LaBr}}_{3}(\mathrm{Ce})$ scintillators has been applied to determine the low-lying states in semimagic $(N=50)$ nucleus $^{94}\mathrm{Ru}$. The experiment was carried out as first series ``FAIR-0'' experiments with DESPEC experimental setup at Facility for Antiproton and Ion Research (FAIR). Excited $^{94}\mathrm{Ru}$ were...
Gamma decays were observed in $^{56}$Ca and $^{58}$Ca following quasi-free one-proton knockout reactions from $^{57,59}$Sc beams at $\approx 200$ MeV/nucleon. For $^{56}$Ca, a $\gamma$ ray transition was measured to be 1456(12) keV, while for an indication 1115(34) keV. Both transitions tentatively assigned as the $2^+_1 \rightarrow 0^+_{gs}$ decays, compared results ab initio conventional shell-model approaches. A calculation wide model space with marginally modified effective...
Vanadia- and/or ceria-incorporated SBA-15-like materials were prepared by impregnation and one-pot hydrothermal synthesis procedures at different solution pH values. The of the was found to have a very strong effect on pore structure, chemical composition, morphology synthesized materials. Materials V Ce route ≪ 1.0 showed characteristic ordered structure SBA-15. However, 1.5 gave complex structures with bottleneck-shaped slit-like interconnected pores. Activity tests in selective oxidation...
Linear polarization and angular correlations of γ-rays depopulating excited states in the neutron-deficient nucleus 4494Ru50 have been measured, enabling firm spin-parity assignments for several this nucleus. The deduced multipolarities strong transitions yrast structure were found to be mostly stretched M1, E1, E2 types and, most cases, agreement with previous tentative assignments. multipolarity 1869 keV connecting 257 1641 indicates that state at 6358 excitation energy has spin parity...
Lifetime measurements of low-lying excited states in the semimagic (<a:math xmlns:a="http://www.w3.org/1998/Math/MathML"><a:mrow><a:mi>N</a:mi><a:mo>=</a:mo><a:mn>50</a:mn></a:mrow></a:math>) nucleus <b:math xmlns:b="http://www.w3.org/1998/Math/MathML"><b:mmultiscripts><b:mi>Rh</b:mi><b:mprescripts/><b:none/><b:mn>95</b:mn></b:mmultiscripts></b:math> have been performed by means fast-timing technique. The experiment was carried out using <c:math...
Linear polarization measurements have been performed for γ rays in 91Ru produced with the 58Ni(36Ar, 2p1nγ)91Ru reaction at a beam energy of 111 MeV. The EXOGAM Ge clover array has used to measure γ-γ coincidences, γ-ray linear polarization, and angular distributions. sensitivity detectors acting as Compton polarimeters determined range 0.3–1.3 Several transitions observed first time. Measurements distribution led firm assignments spin differences parity high-spin states 91Ru. More...
Direct proton-knockout reactions of $^{55}\mathrm{Sc}$ at $\ensuremath{\sim}220\text{ }\text{ }\mathrm{MeV}/\mathrm{nucleon}$ were studied the RIKEN Radioactive Isotope Beam Factory. Populated states $^{54}\mathrm{Ca}$ investigated through $\ensuremath{\gamma}$-ray and invariant-mass spectroscopy. Level energies calculated from nuclear shell model employing a phenomenological internucleon interaction. Theoretical cross sections to distorted-wave impulse approximation estimates multiplied by...
Low-lying excited states in the $N=32$ isotope $^{50}\mathrm{Ar}$ were investigated by in-beam $\ensuremath{\gamma}$-ray spectroscopy following proton- and neutron-knockout, multinucleon removal, proton inelastic scattering at RIKEN Radioactive Isotope Beam Factory. The energies of two previously reported transitions have been confirmed, five additional are presented for first time, including a candidate ${3}^{\ensuremath{-}}$ state. level scheme built using...
The shell closure at $N=32$ has been investigated by a first spectroscopy of the $N=31$ nucleus $^{49}\mathrm{Ar}$ Radioactive Isotope Beam Factory. Using $^{50}\mathrm{Ar}(p,pn)$ reaction channel in inverse kinematics, $^{50}\mathrm{Ar}$ projectiles 217 MeV/nucleon impinged on 150 mm long liquid hydrogen target, part MINOS device. Prompt deexcitation $\ensuremath{\gamma}$ rays were measured with NaI(Tl) array ${\mathrm{DALI}2}^{+}$. Reaction products analyzed SAMURAI spectrometer, which...