0000000000751606

AUTHOR

A. Boukhari

showing 5 related works from this author

Dealing with contaminants in Coulomb excitation of radioactive beams

2020

Abstract Data analysis of the Coulomb excitation experiment of the exotic 206Hg nucleus, recently performed at CERN’s HIE-ISOLDE facility, needs to account for the contribution to target excitation due to the strongly-present beam contaminant 130Xe. In this paper, the contamination subtraction procedure is presented.

PhysicsHistoryLarge Hadron Collider010308 nuclear & particles physicsCoulomb excitationSubtraction proceduretutkimuslaitteetCoulomb excitationContaminationhiukkaskiihdyttimet01 natural sciencesAccelerators and Storage Rings3100Computer Science ApplicationsEducationNuclear physics0103 physical sciencesPhysics::Accelerator PhysicsNuclear Physics - Experiment010306 general physicsNuclear ExperimentydinfysiikkaBeam (structure)ExcitationRadioactive beams
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Quadrupole deformation of Xe-130 measured in a Coulomb-excitation experiment

2020

Physical review / C 102(5), 054304 (2020). doi:10.1103/PhysRevC.102.054304

DiagonalSemiclassical physicsBEAMCoulomb excitationhiukkasfysiikka[PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex]Nuclear Structure530114 Physical sciences01 natural sciencessähkömagneettiset ilmiötnukleonitsymbols.namesakeMatrix (mathematics)NUCLEAR-DATA SHEETS0103 physical sciencesPhenomenological modelNuclear Physics - Experimentddc:530010306 general physicsPhysicsScience & Technology010308 nuclear & particles physicsPhysicsnucleon distributionBohr modelPhysics Nuclearelectromagnetic transitionsSTATESSHAPESQuadrupolePhysical SciencessymbolsAtomic physicsydinfysiikkaHamiltonian (quantum mechanics)
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Raman characterization of Pb2Na1−xLaxNb5−xFexO15 and Pb0.5(5−x)LaxNb5−xFexO15 (0≤x≤1) solid solutions

2011

Abstract The ferroelectric compounds Pb 2 Na 1− x La x Nb 5− x Fe x O 15 and Pb 0.5(5− x ) La x Nb 5− x Fe x O 15 (0≤ x ≤1) with the tungsten bronze type structure have been investigated using Raman spectroscopy. The evolution of the spectra as a function of composition at room temperature is reported. In the frequency range 200–1000 cm −1 three main A 1 phonons around 240 ( υ 1 ), 630 ( υ 2 ) and 816 ( υ 3 ) cm −1 were observed. The broadening of the Raman lines for high values of x originates from a significant structural disorder. This is in good agreement with the relaxor character of these compositions. The lowest-frequency part of the spectra, below 180 cm −1 , reveals a structural ch…

010302 applied physicsMaterials science[ PHYS.COND.CM-MS ] Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci]Analytical chemistrychemistry.chemical_element02 engineering and technologyAtmospheric temperature rangeTungsten021001 nanoscience & nanotechnologyCondensed Matter Physics01 natural sciencesFerroelectricitySpectral lineElectronic Optical and Magnetic Materialssymbols.namesakechemistry0103 physical sciences[PHYS.COND.CM-MS]Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci]symbolsElectrical and Electronic Engineering0210 nano-technologySpectroscopyRaman spectroscopyRaman scatteringSolid solutionPhysica B: Condensed Matter
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Population of lead isotopes in binary reactions using a Rb 94 radioactive beam

2020

8 pags., 9 figs.

3106PopulationNuclear TheoryBinary number[PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex]01 natural sciences7. Clean energyParticle detectorNuclear physicsnuclear reaction ; transfer reaction ; radioactive beam0103 physical sciencesNuclear ReactionsNeutronNuclear Physics - Experiment010306 general physicseducationNuclear Experimentnuclear reactionsPhysicseducation.field_of_studyisotoopitScience & TechnologyIsotope010308 nuclear & particles physicsPhysicsPhysics NuclearPhysical Sciencestransfer reactionsPhysics::Accelerator Physicslow and intermediate energy heavy-ion reactionslyijymodels nad methods for nuclear reactionsNucleonydinfysiikkaBeam (structure)Radioactive beamPhysical Review C
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Quadrupole and octupole collectivity in the semi-magic nucleus 80,206Hg126

2023

The first low-energy Coulomb-excitation measurement of the radioactive, semi-magic, two proton-hole nucleus 206Hg, was performed at CERN’s recently-commissioned HIE-ISOLDE facility. Two γ rays depopulating low-lying states in 206Hg were observed. From the data, a reduced transition strength B(E2; 2+ 1 → 0+ 1 ) = 4.4(6) W.u was determined, the first such value for an N = 126 nucleus south of 208Pb, which is found to be slightly lower than that predicted by shell-model calculations. In addition, a collective octupole state was identified at an excitation energy of 2705 keV, for which a reduced B(E3) transition probability of 30+10−13 W.u was extracted. These results are crucial for understand…

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