Article
Astronomy & Astrophysics
P. Capel, D. R. Phillips, H-W Hammer
Summary: In this study, the breakup of Be-11 was calculated using Halo Effective Field Theory and the Dynamical Eikonal Approximation, with the inclusion of an effective Be-10-n-target force. The results show an improved description of neutron-energy and angular spectra on a C-12 target, especially near the Be-11 5/2(+) state. By adjusting the range parameters of the three-body force, a reasonable description of data in the region of the 3/2(+) Be-11 state was also achieved, demonstrating the sensitivity of the overlap integral structure governing Be-11 s-to-d-state transitions induced by the three-body force.
Article
Astronomy & Astrophysics
Long Zhu, Jun Su, Cheng Li, Feng-Shou Zhang
Summary: This study provides the first direct comparison of multinucleon transfer (MNT) and radioactive beam induced fusion-evaporation (FE) reactions in producing neutron-rich superheavy nuclei, especially the predicted double magic isotope (298)Fl. The results show that both MNT and FE processes are comparable in producing (298)Fl. The uncertainties in shell structures weakly influence the production cross section of (298)Fl, although double shell closures can enhance its stability.
Review
Physics, Nuclear
T. Aumann, C. Barbieri, D. Bazin, C. A. Bertulani, A. Bonaccorso, W. H. Dickhoff, A. Gade, M. Gomez-Ramos, B. P. Kay, A. M. Moro, T. Nakamura, A. Obertelli, K. Ogata, S. Paschalis, T. Uesaka
Summary: This review article discusses the current status of direct nuclear reactions and the nuclear structure aspects that can be studied through them, focusing on the spectroscopic information that can be assessed in experiments involving various types of reactions.
PROGRESS IN PARTICLE AND NUCLEAR PHYSICS
(2021)
Article
Physics, Nuclear
J. Manfredi, J. Lee, A. M. Rogers, M. B. Tsang, W. G. Lynch, C. Anderson, J. Barney, K. W. Brown, B. Brophy, G. Cerizza, Z. Chajecki, G. Chen, J. Elson, J. Estee, H. Iwasaki, C. Langer, Z. Li, C. Loelius, C. Y. Niu, C. Pruitt, H. Setiawan, R. Showalter, K. Smith, L. G. Sobotka, S. Sweany, S. Tangwancharoen, J. R. Winkelbauer, Z. Xiao, Z. Xu
Summary: The extracted spectroscopic factors from transfer reactions in this study are consistent with previous measurements, supporting the reliability of transfer reactions as a probe for the nuclear structure of exotic nuclei. This suggests a much weaker asymmetry dependence in transfer reactions compared to single-nucleon knockout reactions on beryllium or carbon targets, as indicated by a large body of experimental and theoretical studies.
Article
Instruments & Instrumentation
F. Galtarossa, M. Pierens, M. Assie, V Delpech, F. Galet, H. Saugnac, D. Brugnara, D. Ramos, D. Beaumel, P. Blache, M. Chabot, F. Chatelet, E. Clement, F. Flavigny, A. Giret, A. Gottardo, J. Goupil, A. Lemasson, A. Matta, L. Menager, D. Mengoni, E. Rindel
Summary: Direct nuclear reactions with radioactive ion beams provide a powerful tool for studying fundamental nuclear properties far from stability, requiring pure and dense targets. The He-3 cryogenic target HeCTOr was designed for direct nuclear reactions in inverse kinematics, showing excellent stability in a first in-beam experiment.
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
(2021)
Article
Physics, Multidisciplinary
A. Gade, B. A. Brown, D. Weisshaar, D. Bazin, K. W. Brown, R. J. Charity, P. Farris, A. M. Hill, J. Li, B. Longfellow, D. Rhodes, W. Reviol, J. A. Tostevin
Summary: A novel pathway for the formation of multiparticle-multihole excited states in rare isotopes is reported, where highly energy-and momentum-dissipative inelastic-scattering events are observed. These events were measured in reactions of an intermediate-energy beam of 38Ca on a Be target. The study shows that these energetic collisions offer a practical pathway to nuclear-structure studies of more complex multiparticle configurations in rare isotopes.
PHYSICAL REVIEW LETTERS
(2022)
Article
Physics, Nuclear
C. Hebborn, P. Capel
Summary: One-nucleon knockout reactions provide valuable insight into the single-particle structure of nuclei. When applied to one-neutron halo nuclei, they can be effectively modeled using halo effective field theory (halo-EFT). In this study, the halo-EFT descriptions of Be-11 and C-15 show excellent agreement with experimental data.
Article
Astronomy & Astrophysics
K. Zhao, Z. Liu, F. S. Zhang, N. Wang
Summary: The study found that the production cross sections for n-rich N=126 residual fragments are several times larger in the U-238 + Pt-198 reaction system than in the Xe-136 + Pt-198 system due to larger cross sections and lower excitation energies of primary fragments. In both systems, N=126 semi-magic residues are produced via neutron emission in the decay of primary fragments, surviving in semi-central collisions with lower excitation energies.
Article
Physics, Multidisciplinary
Nikola Vukman, Neven Soic, Martin Freer, Martin Alcorta, Devin Connolly, Petra Colovic, Thomas Davinson, Alessia Di Pietro, Annika Lennarz, Athanasios Psaltis, Chris Ruiz, Milivoj Uroic, Matthew Williams
Summary: An experimental study was conducted to observe the helium-cluster decays of the excited states of Be-12. The study discovered previously reported decays as well as a newly observed decay channel. This experiment provides important supplementary information for understanding the molecular structure of excited states in Be-12.
FRONTIERS IN PHYSICS
(2022)
Article
Astronomy & Astrophysics
L. Cavallo, G. Cescutti, F. Matteucci
Summary: In this paper, the authors investigate the origin of the large star-to-star variation in the [Eu/Fe] ratios in extremely metal-poor stars. By considering the chemical enrichment of Eu in the building blocks of the Galactic halo, they find that the dynamics of binary systems in the gravitational potential of the host galaxy play a role in the enrichment from neutron star mergers.
ASTRONOMY & ASTROPHYSICS
(2023)
Article
Physics, Nuclear
K. Kuhn, F. Sarazin, F. M. Nunes, M. A. G. Alvarez, C. Andreoiu, D. W. Bardayan, P. C. Bender, J. C. Blackmon, M. J. G. Borge, R. Braid, B. A. Brown, W. N. Catford, C. Aa Diget, A. DiPietro, T. E. Drake, P. Figuera, A. B. Garnsworthy, J. Gomez-Camacho, G. Hackman, U. Hager, S. Ilyushkin, E. Nacher, P. D. O'Malley, A. Perea, V Pesudo, S. T. Pittman, D. Smalley, C. E. Svensson, O. Tengblad, P. Thompson, C. Unsworth, Z. M. Wang
Summary: The study investigates the nature of 1(-) and 2(-) excited states in Be-10 through the Be-11(p, d) transfer reaction, and finds that their structure is a complex mixture of cluster and halo structures, rather than being uniquely halo-like or cluster-like. The experiment specifically probed a halo-like Be-11 (1/2(+)) configuration in both states, limiting further insights into the structures of these excited states.
Article
Nuclear Science & Technology
En-Bo Huo, Ke-Ran Li, Xiao-Ying Qu, Ying Zhang, Ting-Ting Sun
Summary: The possible exotic nuclear properties in neutron-rich Ca, Ni, Zr, and Sn isotopes were studied using the continuum Skyrme Hartree-Fock-Bogoliubov theory and the Green's function method. The effects of pairing correlation, couplings with continuum, and blocking effects were properly considered. The study found that the neutron-rich isotopes show different properties depending on the criteria used for neutron drip line prediction, and the presence of unpaired odd neutron leads to lower neutron pairing energies in odd-A nuclei compared to neighbor-ing even-even nuclei. Possible halo structures were predicted in neutron-rich Ca, Ni, and Sn isotopes, characterized by significant deviations from the traditional r ? A(1/3) rule and diffuse spatial density distributions. The contributions of various partial waves to the neutron density were analyzed, and it was found that orbitals near the Fermi surface, particularly those with small angular momenta, significantly affect the extended nuclear density and large rms radii. The evolution of the number of neutrons above the Fermi surface as a function of mass number A is consistent with the pairing energy, supporting the important role of pairing correlation in halo phenomena.
NUCLEAR SCIENCE AND TECHNIQUES
(2023)
Article
Physics, Multidisciplinary
Alinka Lepine-Szily
Summary: This paper presents an outlook of studies performed in collaboration with or inspired by Prof. Mahir Hussein, including elastic scattering measurements in the 80-90s and the installation of the Radioactive Ion Beams in BraSil (RIBRAS) facility. The facility, an idea promoted by Prof. Hussein, has been operating continuously as the first radioactive ion beam facility in the southern hemisphere since 2004, producing interesting results with the exotic He-6 beam provided by RIBRAS.
BRAZILIAN JOURNAL OF PHYSICS
(2021)
Article
Astronomy & Astrophysics
P. Hammond, L. Hawke, N. Andersson
Summary: Nuclear reactions may have an uncertain impact on gravitational-wave signals from neutron-star mergers. To understand the significance of this effect, we compare two numerical simulations representing extremes. We find that despite small differences in the gravitational-wave signals, they can be distinguished using the Einstein Telescope noise curve, assuming the equation of state can be well constrained. This suggests the need to accurately include nuclear reactions in future simulations to avoid systematic errors in inferred equation of state parameters.
Article
Physics, Nuclear
Xiang-Xiang Sun, Lu Guo
Summary: We conducted a microscopic study on the fusion reactions 14,15C + 232Th, focusing on the influence of deformed halo structure on reaction dynamics using the time-dependent density functional theory. By obtaining internuclear potentials through the density-constraint frozen Hartree-Fock approach, we calculated the fusion cross sections of 14,15C + 232Th considering all orientations of deformed reactants. Our calculations successfully reproduced the enhancement of fusion cross sections at sub-barrier energies and provided insights into the underlying mechanism driven by the deformed halo structure of 15C. Additionally, we found that the one-neutron transfer probabilities were more sensitive to the orientations of 15C than 232Th, indicating the notable effects of halo structure on the reaction dynamics.
Article
Instruments & Instrumentation
S. Raeder, B. Bastin, M. Block, P. Creemers, P. Delahaye, R. Ferrer, X. Flechard, S. Franchoo, L. Ghys, L. P. Gaffney, C. Granados, R. Heinke, L. Hijazi, M. Huyse, T. Kron, Yu. Kudryavtsev, M. Laatiaoui, N. Lecesne, F. Luton, I. D. Moore, Y. Martinez, E. Mogilevskiy, P. Naubereit, J. Piot, S. Rothe, H. Savajols, S. Sels, V. Sonnenschein, E. Traykov, C. Van Beveren, P. Van den Bergh, P. Van Duppen, K. Wendt, A. Zadvornaya
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS
(2016)
Article
Instruments & Instrumentation
F. Dechery, H. Savajols, M. Authier, A. Drouart, J. Nolen, D. Ackermann, A. M. Amthor, B. Bastin, A. Berryhill, D. Boutin, L. Caceres, M. Coffey, O. Delferriere, O. Dorvaux, B. Gall, K. Hauschild, A. Hue, B. Jacquot, N. Karkour, B. Laune, F. Le Blanc, N. Lecesne, A. Lopez-Martens, F. Lutton, S. Manikonda, R. Meinke, G. Olivier, J. Payet, J. Piot, O. Pochon, V. Prince, M. Souli, G. Stelzer, C. Stodel, M. -H. Stodel, B. Sulignano, E. Traykov, D. Uriot
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS
(2016)
Article
Astronomy & Astrophysics
A. Sanetullaev, R. Kanungo, J. Tanaka, M. Alcorta, C. Andreoiu, P. Bender, A. A. Chen, G. Christian, B. Davids, J. Fallis, J. P. Fortin, N. Galinski, A. T. Gallant, P. E. Garrett, G. Hackman, B. Hadinia, S. Ishimoto, M. Keefe, R. Kruecken, J. Lighthall, E. McNeice, D. Miller, J. Purcell, J. S. Randhawa, T. Roger, A. Rojas, H. Savajols, A. Shotter, I. Tanihata, I. J. Thompson, C. Unsworth, P. Voss, Z. Wang
Article
Multidisciplinary Sciences
R. Ferrer, A. Barzakh, B. Bastin, R. Beerwerth, M. Block, P. Creemers, H. Grawe, R. de Groote, P. Delahaye, X. Flechard, S. Franchoo, S. Fritzsche, L. P. Gaffney, L. Ghys, W. Gins, C. Granados, R. Heinke, L. Hijazi, M. Huyse, T. Kron, Yu. Kudryavtsev, M. Laatiaoui, N. Lecesne, M. Loiselet, F. Lutton, I. D. Moore, Y. Martinez, E. Mogilevskiy, P. Naubereit, J. Piot, S. Raeder, S. Rothe, H. Savajols, S. Sels, V. Sonnenschein, J. -C. Thomas, E. Traykov, C. Van Beveren, P. Van den Bergh, P. Van Duppen, K. Wendt, A. Zadvornaya
NATURE COMMUNICATIONS
(2017)
Article
Physics, Nuclear
O. B. Tarasov, O. Delaune, F. Farget, D. J. Morrissey, A. M. Amthor, B. Bastin, D. Bazin, B. Blank, L. Caceres, A. Chbihi, B. Fernandez-Dominguez, S. Grevy, O. Kamalou, S. M. Lukyanov, W. Mittig, J. Pereira, L. Perrot, M. -G. Saint-Laurent, H. Savajols, B. M. Sherrill, C. Stodel, J. C. Thomas, A. C. Villari
EUROPEAN PHYSICAL JOURNAL A
(2018)
Article
Instruments & Instrumentation
D. Ackermann, A. K. Mistry, F. P. Hessberger, B. Andel, S. Antalic, M. Block, L. Caceres, P. Chhetri, F. Dechery, Ch. Droese, Ch. E. Duellmann, F. Giacoppo, J. Hoffmann, O. Kaleja, O. Kamalou, N. Kurz, J. Khuyagbaatar, R. R. Maendl, T. Murboeck, M. Laatiaoui, J. Maurer, P. Mosat, J. Piot, S. Raeder, H. Savajols, O. Sorlin, Ch. Stodel, J. C. Thomas, M. Vostinar, P. Wieczorek, A. Yakushev, Z. Zhang
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
(2018)
Article
Astronomy & Astrophysics
I. Stefan, B. Fornal, S. Leoni, F. Azaiez, C. Portail, J. C. Thomas, A. V. Karpov, D. Ackermann, P. Bednarczyk, Y. Blumenfeld, S. Calinescu, A. Chbihi, M. Ciemala, N. Cieplicka-Orynczak, F. C. L. Crespi, S. Franchoo, F. Hammache, L. W. Iskra, B. Jacquot, R. V. F. Janssens, O. Kamalou, T. Lauritsen, M. Lewitowicz, L. Olivier, S. M. Lukyanov, M. Maccormick, A. Maj, P. Marini, I. Matea, M. A. Naumenko, F. de Oliveira Santos, C. Petrone, Yu. E. Penionzhkevich, F. Rotaru, H. Savajols, O. Sorlin, M. Stanoiu, B. Szpak, O. B. Tarasov, D. Verney
Article
Physics, Nuclear
M. Vostinar, F. P. Hessberger, D. Ackermann, B. Andel, S. Antalic, M. Block, Ch. Droese, J. Even, S. Heinz, Z. Kalaninova, I. Kojouharov, M. Laatiaoui, A. K. Mistry, J. Piot, H. Savajols
EUROPEAN PHYSICAL JOURNAL A
(2019)
Article
Astronomy & Astrophysics
A. Lopez-Martens, A. Yeremin, M. S. Tezekbayeva, Z. Asfari, R. Brionnet, O. Dorvaux, B. Gall, K. Hauschild, D. Ackermann, L. Caceres, M. L. Chelnokov, V. Chepigin, M. Gustova, A. Isaev, A. Karpov, A. A. Kuznetsova, J. Piot, O. N. Malyshev, A. G. Popeko, Yu A. Popov, K. Rezynkina, H. Savajols, A. Svirikhin, E. A. Sokol, R. Steinegger
Article
Instruments & Instrumentation
S. Raeder, R. Ferrer, C. Granados, M. Huyse, T. Kron, Yu. Kudryavtsev, N. Lecesne, J. Piot, J. Romans, H. Savajols, P. Van Duppen, K. D. A. Wendt
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS
(2020)
Article
Astronomy & Astrophysics
M. Caamano, T. Roger, A. M. Moro, G. F. Grinyer, J. Pancin, S. Bagchi, S. Sambi, J. Gibelin, B. Fernandez-Dominguez, N. Itagaki, J. Benlliure, D. Cortina-Gil, F. Farget, B. Jacquot, D. Perez-Loureiro, B. Pietras, R. Raabe, D. Ramos, C. Rodriguez Tajes, H. Savajols, M. Vandebrouck
Summary: The properties of H-7, a nuclear system with the most unbalanced neutron-to-proton ratio known so far, provide key insights into nuclear forces and the formation of nuclei.
Article
Physics, Atomic, Molecular & Chemical
Jekabs Romans, Anjali Ajayakumar, Martial Authier, Frederic Boumard, Lucia Caceres, Jean-Francois Cam, Arno Claessens, Samuel Damoy, Pierre Delahaye, Philippe Desrues, Antoine Drouart, Patricia Duchesne, Rafael Ferrer, Xavier Flechard, Serge Franchoo, Patrice Gangnant, Ruben P. de Groote, Sandro Kraemer, Nathalie Lecesne, Renan Leroy, Julien Lory, Franck Lutton, Vladimir Manea, Yvan Merrer, Iain Moore, Alejandro Ortiz-Cortes, Benoit Osmond, Julien Piot, Olivier Pochon, Blaise-Mael Retailleau, Herve Savajols, Simon Sels, Emil Traykov, Juha Uusitalo, Christophe Vandamme, Marine Vandebrouck, Paul Van den Bergh, Piet Van Duppen, Matthias Verlinde, Elise Verstraelen, Klaus Wendt
Summary: This article presents the initial results from the S-3 Low-Energy Branch gas cell setup at SPIRAL2-GANIL. The setup is currently being commissioned offline to optimize the operating conditions, providing high-efficiency and low-energy spatial spread for the targeted isotopes. The article also includes measurements of transmission and mass-resolving power for the different components of the S-3-LEB setup, as well as the first proof-of-principle experiments using a pulsed-titanium-sapphire laser system in an offline laser laboratory.
Proceedings Paper
Astronomy & Astrophysics
A. Drouart, J. A. Nolen, H. Savajols
27TH INTERNATIONAL NUCLEAR PHYSICS CONFERENCE (INPC2019)
(2020)
Proceedings Paper
Materials Science, Multidisciplinary
J. Kallunkathariyil, Ch Stodel, C. Marry, G. Fremont, B. Bastin, J. Piot, E. Clement, S. Le Moal, V Morel, J-C Thomas, O. Kamalou, C. Spitaels, H. Savajols, M. Vostinar, F. Pellemoine, W. Mittig
PROCEEDINGS OF THE 28TH WORLD CONFERENCE OF THE INTERNATIONAL NUCLEAR TARGET DEVELOPMENT SOCIETY (INTDS2016)
(2018)
Article
Physics, Nuclear
C. Granados, P. Creemers, R. Ferrer, L. P. Gaffney, W. Gins, R. de Groote, M. Huyse, Yu. Kudryavtsev, Y. Martinez, S. Raeder, S. Sels, C. Van Beveren, P. Van den Bergh, P. Van Duppen, K. Wrzosek-Lipska, A. Zadvornaya, A. E. Barzakh, B. Bastin, P. Delahaye, L. Hijazi, N. Lecesne, F. Luton, J. Piot, H. Savajols, J. -C. Thomas, E. Traykov, R. Beerwerth, S. Fritzsche, M. Block, X. Flechard, S. Franchoo, L. Ghys, H. Grawe, R. Heinke, T. Kron, P. Naubereit, K. Wendt, M. Laatiaoui, I. Moore, V. Sonnenschein, M. Loiselet, E. Mogilevskiy, S. Rothe