C. Stödel
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View article: Commissioning of the S3 Spectrometer: advances, challenges and outlook
Commissioning of the S3 Spectrometer: advances, challenges and outlook Open
The linear accelerator of the SPIRAL2 facility at GANIL delivers both light ions to study nuclear reactions with neutrons in the Neutron for Science (NFS) experimental hall, and heavier ions to produce exotic nuclei, like heavy and super h…
View article: Refining the deep sub-barrier <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:mmultiscripts><mml:mi mathvariant="normal">C</mml:mi><mml:mprescripts/><mml:none/><mml:mn>12</mml:mn></mml:mmultiscripts><mml:mo>+</mml:mo><mml:mmultiscripts><mml:mi mathvariant="normal">C</mml:mi><mml:mprescripts/><mml:none/><mml:mn>12</mml:mn></mml:mmultiscripts></mml:mrow></mml:math> fusion excitation function with the STELLA apparatus
Refining the deep sub-barrier fusion excitation function with the STELLA apparatus Open
Purpose: We have investigated the cross section around the lowest direct coincident gamma-particle measurements, where previously only limits could be established with the aim of obtaining a detailed description of the excitation function.…
View article: Unbound neutron ν0d3/2 strength in 17C and the N=16 shell gap
Unbound neutron ν0d3/2 strength in 17C and the N=16 shell gap Open
View article: Unbound neutron $\nu0d_{3/2}$ strength in $^{17}$C and the N=16 shell gap
Unbound neutron $\nu0d_{3/2}$ strength in $^{17}$C and the N=16 shell gap Open
Significant continuum strength has been observed to be populated in $^{17}$C produced in the d($^{16}$C,p) reaction at a beam energy of 17.2~MeV/nucleon. The strength appears at greater than $\sim$2~MeV above the single-neutron decay thres…
View article: Two-proton correlations in the decay of 48Ni and 45Fe
Two-proton correlations in the decay of 48Ni and 45Fe Open
The main observables of the rare two-proton emission process - half-life, total energy of the decay as well as energy and angular correlations between the emitted protons - have been measured for 48Ni and 45Fe in a recent experiment perfor…
View article: Study of Proton and Neutron Excitations Along Silicon Isotopes Between \(N=20\) and \(N=28\)
Study of Proton and Neutron Excitations Along Silicon Isotopes Between \(N=20\) and \(N=28\) Open
This paper reports on new \(B\)(E2) values for \(^{36}\)Si and \(^{38}\)Si obtained by Coulomb excitation at GANIL during the LISE 2022 campaign. The results agree well with shell model calculations and confirm the increase in proton and n…
View article: Preparation of lanthanide thin films for ion beam experiments and post irradiation characterization
Preparation of lanthanide thin films for ion beam experiments and post irradiation characterization Open
International audience
View article: Commissioning of the first S<sup>3</sup> Targets’ Station for non-radioactive material
Commissioning of the first S<sup>3</sup> Targets’ Station for non-radioactive material Open
In order to handle the very intense heavy ion beams from the GANIL-SPIRAL2 superconducting linear accelerator (LINAG), a specific target station for non-radioactive material was designed and built for the Super-Separator-Spectrometer S 3 .…
View article: Search for a Neutron Dark Decay in <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mmultiscripts><mml:mrow><mml:mi>He</mml:mi></mml:mrow><mml:mprescripts/><mml:none/><mml:mrow><mml:mn>6</mml:mn></mml:mrow></mml:mmultiscripts></mml:mrow></mml:math>
Search for a Neutron Dark Decay in Open
Neutron dark decays have been suggested as a solution to the discrepancy between bottle and beam experiments, providing a dark matter candidate that can be searched for in halo nuclei. The free neutron in the final state following the deca…
View article: Recent Results on Direct Measurement of the \(^{12}\)C+\(^{12}\)C Fusion Cross section at Deep Sub-barrier Energies with STELLA
Recent Results on Direct Measurement of the \(^{12}\)C+\(^{12}\)C Fusion Cross section at Deep Sub-barrier Energies with STELLA Open
International audience
View article: Elucidating the nature of the proton radioactivity and branching ratio on the first proton emitter discovered 53mCo
Elucidating the nature of the proton radioactivity and branching ratio on the first proton emitter discovered 53mCo Open
View article: <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>N</mml:mi><mml:mo>=</mml:mo><mml:mn>16</mml:mn></mml:math> Magicity Revealed at the Proton Drip Line through the Study of <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mmultiscripts><mml:mrow><mml:mi>Ca</mml:mi></mml:mrow><mml:mprescripts/><mml:none/><mml:mrow><mml:mn>35</mml:mn></mml:mrow></mml:mmultiscripts></mml:mrow></mml:math>
Magicity Revealed at the Proton Drip Line through the Study of Open
The last proton bound calcium isotope $^{35}$Ca has been studied for the first time, using the $^{37}$Ca($p, t$)$^{35}$Ca two neutron transfer reaction. The radioactive $^{37}$Ca nuclei, produced by the LISE spectrometer at GANIL, interact…
View article: Cross-shell states in 15C: A test for p-sd interactions
Cross-shell states in 15C: A test for p-sd interactions Open
The low-lying structure of $^{15}$C has been investigated via the neutron-removal $^{16}$C$(d,t)$ reaction. Along with bound neutron sd-shell hole states, unbound p-shell hole states have been firmly confirmed. The excitation energies and …
View article: Low-lying structure of <sup>15</sup>C: Information on the N=8 shell gap
Low-lying structure of <sup>15</sup>C: Information on the N=8 shell gap Open
The low-lying structure of 15 C has been investigated via the neutron-removal d( 16 C, t) reaction. The experiment was performed at GANIL using a secondary 16 C beam produced by fragmentation in the LISE spectrometer at 17.2 MeV/nucleon wi…
View article: Investigation of a light Dark Boson existence: The New JEDI project
Investigation of a light Dark Boson existence: The New JEDI project Open
Several experiments around the world are looking for a new particle, named Dark Boson, which may do the link between the Ordinary Matter (which forms basically stars, planets, interstellar gas...) and the Hidden Sectors of the Universe. Th…
View article: Author Correction: 4D-imaging of drip-line radioactivity by detecting proton emission from 54mNi pictured with ACTAR TPC
Author Correction: 4D-imaging of drip-line radioactivity by detecting proton emission from 54mNi pictured with ACTAR TPC Open
View article: Structure of <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mmultiscripts><mml:mrow><mml:mi>Ca</mml:mi></mml:mrow><mml:mprescripts/><mml:none/><mml:mrow><mml:mn>36</mml:mn></mml:mrow></mml:mmultiscripts></mml:mrow></mml:math> under the Coulomb Magnifying Glass
Structure of under the Coulomb Magnifying Glass Open
Detailed spectroscopy of the neutron-deficient nucleus ^{36}Ca was obtained up to 9 MeV using the ^{37}Ca(p,d)^{36}Ca and the ^{38}Ca(p,t)^{36}Ca transfer reactions. The radioactive nuclei, produced by the LISE spectrometer at GANIL, inter…
View article: New narrow resonances observed in the unbound nucleus <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mmultiscripts><mml:mi mathvariant="normal">F</mml:mi><mml:mprescripts/><mml:none/><mml:mn>15</mml:mn></mml:mmultiscripts></mml:math>
New narrow resonances observed in the unbound nucleus Open
The structure of the unbound 15F nucleus is investigated using the inverse kinematics resonant scattering of a radioactive 14O beam impinging on a CH2 target. The analysis of 1H(14O,p)…
View article: Mirror symmetry at mass A = 54: E4 effective charges near doubly magic 56Ni
Mirror symmetry at mass A = 54: E4 effective charges near doubly magic 56Ni Open
View article: NEWGAIN White Book - Science Requirements - Work Package Physics
NEWGAIN White Book - Science Requirements - Work Package Physics Open
The new injector for SPIRAL2 at GANIL, NEWGAIN is presently in its design phase. The major constraints for its technical concepts are determined by the requirements of its future users, the national French and the international scientific …
View article: Neutron-proton pairing in the N=Z radioactive fp-shell nuclei 56Ni and 52Fe probed by pair transfer
Neutron-proton pairing in the N=Z radioactive fp-shell nuclei 56Ni and 52Fe probed by pair transfer Open
View article: Direct Measurement of Carbon Fusion at Astrophysical Energies with Gamma-Particle Coincidences
Direct Measurement of Carbon Fusion at Astrophysical Energies with Gamma-Particle Coincidences Open
We present 12 C+ 12 C direct fusion measurements with STELLA UKFATIMA, that reach into the region of astrophysics interest relevant to massive stars ( M ⊙ ≈ 25) using self-supporting thin rotating carbon foils [1]. We demonstrate that dete…
View article: Narrow resonances in the continuum of the unbound nucleus $^{15}$F
Narrow resonances in the continuum of the unbound nucleus $^{15}$F Open
The structure of the unbound $^{15}$F nucleus is investigated using the inverse kinematics resonant scattering of a radioactive $^{14}$O beam impinging on a CH$_2$ target. The analysis of $^{1}$H($^{14}$O,p)$^{14}$O and $^{1}$H($^{14}$O,2p…
View article: 4D-imaging of drip-line radioactivity by detecting proton emission from 54mNi pictured with ACTAR TPC
4D-imaging of drip-line radioactivity by detecting proton emission from 54mNi pictured with ACTAR TPC Open
View article: Evaluation of the <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:mmultiscripts><mml:mi mathvariant="normal">K</mml:mi><mml:mprescripts/><mml:none/><mml:mn>35</mml:mn></mml:mmultiscripts><mml:mo>(</mml:mo><mml:mi>p</mml:mi><mml:mo>,</mml:mo><mml:mi>γ</mml:mi><mml:mo>)</mml:mo><mml:mmultiscripts><mml:mi>Ca</mml:mi><mml:mprescripts/><mml:none/><mml:mn>36</mml:mn></mml:mmultiscripts></mml:mrow></mml:math> reaction rate using the <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:mmultiscripts><mml:mi>Ca</mml:mi><mml:mprescripts/><mml:none/><mml:mn>37</mml:mn></mml:mmultiscripts><mml:mo>(</mml:mo><mml:mi>p</mml:mi><mml:mo>,</mml:mo><mml:mi>d</mml:mi><mml:mo>)</mml:mo><mml:mmultiscripts><mml:mi>Ca</mml:mi><mml:mprescripts/><mml:none/><mml:mn>36</mml:mn></mml:mmultiscripts></mml:mrow></mml:math> transfer reaction
Evaluation of the reaction rate using the transfer reaction Open
A recent sensitivity study has shown that the $^{35}$K$(p,\\gamma)^{36}$Ca\nreaction is one of the ten $(p,\\gamma)$ reaction rates that could significantly\nimpact the shape of the calculated X-ray burst light curve. In this work, we\npro…
View article: Low-lying single-particle structure of 17C and the N = 14 sub-shell closure
Low-lying single-particle structure of 17C and the N = 14 sub-shell closure Open
View article: Signature of a possible $$\alpha $$-cluster state in $$N=Z$$ doubly-magic $$^{56}$$Ni
Signature of a possible $$\alpha $$-cluster state in $$N=Z$$ doubly-magic $$^{56}$$Ni Open
View article: Advances in the Direct Study of Carbon Burning in Massive Stars
Advances in the Direct Study of Carbon Burning in Massive Stars Open
The ^{12}C+^{12}C fusion reaction plays a critical role in the evolution of massive stars and also strongly impacts various explosive astrophysical scenarios. The presence of resonances in this reaction at energies around and below the Cou…
View article: Methods of targets’ characterization
Methods of targets’ characterization Open
The paper reviews the characterization’s techniques for solid targets used in nuclear physics with special emphasis on actinide targets. The determination of the thickness, isotopic and chemical composition are described for actinide targe…
View article: The STELLA apparatus for particle-Gamma coincidence fusion measurements with nanosecond timing
The STELLA apparatus for particle-Gamma coincidence fusion measurements with nanosecond timing Open