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1. The decay of the 21.47-MeV stretched resonance in 13C: A precise probe of the open nuclear quantum system description

Author

N. Cieplicka-Oryńczak, Y. Jaganathen, B. Fornal, S. Leoni, M. Płoszajczak, M. Ciemała, S. Ziliani, M. Kmiecik, A. Maj, J. Łukasik, P. Pawłowski, B. Sowicki, B. Wasilewska, M. Ziębliński, P. Bednarczyk, C. Boiano, S. Bottoni, A. Bracco, S. Brambilla, I. Burducea, F. Camera, I. Ciepał, C. Clisu, F.C.L. Crespi, K. Dhanmeher, N. Florea, E. Gamba, J. Grębosz, M.N. Harakeh, D.A. Iancu, Ł.W. Iskra, M. Krzysiek, P. Kulessa, N. Marginean, R. Marginean, I. Matea, M. Matejska-Minda, K. Mazurek, B. Million, W. Parol, M. Sferrazza, L. Stan, and B. Włoch

Subjects
13C, Nuclear structure, Stretched resonance states, Gamow Shell Model, Physics, QC1-999
Abstract

The decay of the 21.47-MeV stretched resonance in 13C, arising from p3/2→d5/2 nucleon excitation coupled to maximum spin, was investigated in a (p,p′) experiment at 135 MeV proton bombarding energy, performed at the Cyclotron Centre Bronowice (CCB) at IFJ PAN in Krakow. First experimental information on the proton and neutron decay branches from this state was obtained by using coincidence measurement of protons inelastically scattered on a 13C target and γ rays from daughter nuclei, namely, 12B (proton decay) and 12C (neutron decay). The main branches lead to the Jπ=2+, first-excited state at 0.953 MeV in 12B, and to the Jπ=1+, T=1 level at 15.110 MeV in 12C. The results were compared with predictions from the Gamow Shell Model (GSM), which was used to describe the stretched resonance in terms of its energy, width, electromagnetic transition strengths and decay pattern. A very good agreement was obtained between the measured and calculated properties of the 21.47-MeV stretched resonance in 13C, demonstrating the high-quality and precision of the GSM wave function calculations, which include coupling to the resonant and non-resonant particle continuum.

Published
2022
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2. M4 Resonances in Light Nuclei Studied at CCB

Author

N. Cieplicka-Oryńczak, B. Fornal, M. Ciemała, M. Kmiecik, A. Maj, J. Łukasik, P. Pawłowski, B. Sowicki, B. Wasilewska, M. Ziębliński, P. Bednarczyk, I. Ciepał, K. Dhanmeher, J. Grębosz, Ł.W. Iskra, M. Krzysiek, M. Matejska-Minda, K. Mazurek, W. Parol, B. Włoch, C. Boiano, S. Brambilla, B. Million, Y. Jaganathen, M. Płoszajczak, I. Burducea, C. Clisu, N. Florea, D.A. Iancu, N. Marginean, R. Marginean, L. Stan, M.N. Harakeh, P. Kulessa, I. Matea, M. Sferrazza, Grand Accélérateur National d'Ions Lourds (GANIL), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique des 2 Infinis Irène Joliot-Curie (IJCLab), and Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)

Subjects
[PHYS.NUCL]Physics [physics]/Nuclear Theory [nucl-th], General Physics and Astronomy
Abstract

International audience; M4 resonances in light nuclei result from the p3/2 → d5/2 stretched excitations. Their configurations should be relatively simple, which makes them good benchmarks for the theoretical calculations taking into account the role of continuum couplings. The first experimental studies aiming at tracing the decay of the M4 stretched resonance in 13C, located at 21.47 MeV, were undertaken at the Cyclotron Centre Bronowice at the Institute of Nuclear Physics Polish Academy of Sciences in Kraków, Poland (IFJ PAN). They provided information on the proton and neutron decay channels of this resonance to 12B and 12C daughter nuclei, respectively. These experimental results were then compared with the theoretical calculations based on the Gamow Shell Model approach, in terms of energy, width, and in particular, the decay pattern. Furthermore, the studies of the next cases, namely, 14N and 16O, where several M4 resonances appear at around 20 MeV, have been recently performed at CCB. The new experimental findings will serve as a testing ground for future calculations describing the heavier nuclei in this important region of the nuclear chart.

Published
2022

3. Applications of Rutherford backscattering analysis methods to nuclear physics experiments

Author

M. Siciliano, F. Camera, P. J. Napiorkowski, A. Perego, D. Testov, E. Pasquali, D. Mengoni, M. Matejska-Minda, P. R. John, A. Goasduff, D. T. Doherty, K. Wrzosek-Lipska, M. Komorowska, F. Recchia, M. Rocchini, D. Bazzacco, Caroline Czelusniak, M. Ottanelli, L. Sottili, P. Sona, A. Nannini, N. Marchini, G. Benzoni, K. Hadynska-Klek, J. J. Valiente-Dobón, M. Zielińska, B. Melon, Massimo Chiari, Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), and Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay

Subjects
Physics, Nuclear and High Energy Physics, 010308 nuclear & particles physics, Detector, Coulomb excitation, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], 01 natural sciences, Experimental nuclear physics, Low-energy Coulomb excitation, Rutherford backscattering spectroscopy, Silicon detectors, Nuclear physics, 0103 physical sciences, 010306 general physics, Spectroscopy, Instrumentation, Analysis method
Abstract

International audience; Target properties such as thickness and composition are essential ingredients in nuclear physics experiments, therefore, dedicated analyses to evaluate them before and/or after the measurement are often performed. In some experimental techniques, the exploited detectors allow for the evaluation of these properties on-line, i.e. directly during the experiment. In this paper, we report on the use of analysis methods coming from the Rutherford backscattering spectroscopy technique to obtain on-line information on the target used in a nuclear physics experiment. This measurement was performed at INFN LNL by exploiting the low-energy Coulomb excitation technique. The results have been compared with an independent Rutherford backscattering spectroscopy analysis of the same target performed at INFN LABEC in Florence.

Published
2021

4. Decay of the 'stretched' M4 resonance in 13C

Author

D.A. Iancu, P. Kulessa, L. Stan, Y. Jaganathen, S. Bottoni, A. Maj, N. Marginean, Michele Sferrazza, S. Brambilla, P. Pawłowski, S. Ziliani, A. Bracco, M. Kmiecik, J. Łukasik, Ł. W. Iskra, B. Fornal, K. Mazurek, I. Burducea, S. Leoni, C. Boiano, R. Marginean, N. Florea, C. Clisu, F. Camera, B. Sowicki, M. Płoszajczak, M.N. Harakeh, N. Cieplicka-Oryńczak, M. Krzysiek, M. Ciemala, M. Zieblinski, J. Grebosz, B. Wasilewska, M. Matejska-Minda, Grand Accélérateur National d'Ions Lourds (GANIL), Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), and Research unit Nuclear & Hadron Physics

Subjects
Physics, [PHYS.NUCL]Physics [physics]/Nuclear Theory [nucl-th], Proton, Nuclear Theory, Continuum (design consultancy), Cyclotron, SHELL model, General Physics and Astronomy, Resonance (particle physics), Coincidence, law.invention, Nuclear physics, law, Neutron, Nuclear Experiment
Abstract

International audience; “Stretched” states are examples of the simplest nuclear excitations in the continuum, thus offering an excellent testing ground for various theoretical approaches. The decay of the stretched single-particle state in 13C, located at 21.47 MeV, was investigated in an experiment performed recently at the Cyclotron Centre Bronowice (CCB) at IFJ PAN in Kraków. First experimental information on the proton and neutron decay channels of this resonance was obtained by employing coincidence measurement of protons inelastically scattered on the 13C target and γ rays from daughter nuclei. The new experimental findings will be used for testing predictions obtained by the Gamow Shell Model calculations.

Published
2020

5. Spectroscopy of neutron-rich nitrogen isotopes with Agata+Paris+Vamos

Author

S. Ziliani, M. Ciemała, F.C.L. Crespi, S. Leoni, B. Fornal, A. Maj, P. Bednarczyk, G. Benzoni, A. Bracco, C. Boiano, S. Bottoni, S. Brambilla, M. Bast, M. Beckers, T. Braunroth, F. Camera, N. Cieplicka-Oryńczak, E. Clément, S. Coelli, O. Dorvaux, S. Erturk, G. de France, C. Fransen, A. Goldkuhle, J. Grębosz, M.N. Harakeh, Ł.W. Iskra, B. Jacquot, A. Karpov, M. Kicińska-Habior, Y. Kim, M. Kmiecik, A. Lemasson, S.M. Lenzi, M. Lewitowicz, H. Li, I. Matea, K. Mazurek, C. Michelagnoli, M. Matejska-Minda, B. Million, C. Müller-Gatermann, V. Nanal, P. Napiorkowski, D.R. Napoli, R. Palit, M. Rejmund, Ch. Schmitt, M. Stanoiu, I. Stefan, E. Vardaci, B. Wasilewska, O. Wieland, M. Ziębliński, M. Zielińska, Ziliani, S., Ciemała, M., Crespi, F. C. L., Leoni, S., Fornal, B., Maj, A., Bednarczyk, P., Benzoni, G., Bracco, A., Boiano, C., Bottoni, S., Brambilla, S., Bast, M., Beckers, M., Braunroth, T., Camera, F., Cieplicka-Orynczak, N., Clément, E., Coelli, S., Dorvaux, O., Erturk, S., de France, G., Fransen, C., Goldkuhle, A., Grebosz, J., Harakeh, M. N., Iskra, Ł. W., Jacquot, B., Karpov, A., Kicinska-Habior, M., Kim, Y., Kmiecik, M., Lemasson, A., Lenzi, S. M., Lewitowicz, M., Li, H., Matea, I., Mazurek, K., Michelagnoli, C., Matejska-Minda, M., Million, B., Müller-Gatermann, C., Nanal, V., Napiorkowski, P., Napoli, D. R., Palit, R., Rejmund, M., Schmitt, Ch., Stanoiu, M., Stefan, I., Vardaci, E., Wasilewska, B., Wieland, O., Zieblinski, M., Zielinska, M., Grand Accélérateur National d'Ions Lourds (GANIL), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut Pluridisciplinaire Hubert Curien (IPHC), Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut de Physique Nucléaire d'Orsay (IPNO), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut Laue-Langevin (ILL), Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), ILL, and Research unit Nuclear & Hadron Physics

Subjects
Physics, education.field_of_study, Spectrometer, 010308 nuclear & particles physics, Astrophysics::High Energy Astrophysical Phenomena, Population, Gamma ray, General Physics and Astronomy, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], 01 natural sciences, Nuclear physics, Excited state, 0103 physical sciences, Neutron, AGATA, 010306 general physics, Spectroscopy, education, Beam (structure)
Abstract

Excited states of 17N, 18N and 19N were investigated through the measurement of gamma rays, following their population via deep-inelastic reactions induced by an 18O beam (7 MeV/u) on a thick 181Ta target. The experimental setup comprised the AGATA+PARIS detection system, coupled to the VAMOS++ magnetic spectrometer. In the 17N nucleus, the analysis of gamma-ray transitions de-exciting two states around 4-5 MeV clearly pointed to discrepancies with the lifetime values reported in literature. Three new gamma rays were observed in 18N at the energies of 1662.3 (3) keV, 2073.4 (8) keV and 2300.9 (8) keV, and hints for other two new transitions around 1566 keV and 1720 keV were found. In addition, a new transition with energy of 2489.7 (8) keV was observed in 19N.

Published
2020

6. γ decay to the ground state from the excitations above the neutron threshold in the Pb208(p,p′γ) reaction at 85 MeV

Author

B. Wasilewska, M. Kmiecik, M. Ciemała, A. Maj, F. C. L. Crespi, A. Bracco, M. N. Harakeh, P. Bednarczyk, S. Bottoni, S. Brambilla, F. Camera, I. Ciepał, N. Cieplicka-Oryńczak, M. Csatlos, B. Fornal, V. Gaudilla, J. Grȩbosz, J. Isaak, Ł. W. Iskra, M. Jeżabek, A. J. Krasznahorkay, S. Kihel, M. Krzysiek, P. Lasko, S. Leoni, M. Lewitowicz, J. Łukasik, M. Matejska-Minda, K. Mazurek, P. J. Napiorkowski, W. Parol, P. Pawłowski, L. Q. Qi, M. Saxena, Ch. Schmitt, Y. Sobolev, B. Sowicki, M. Stanoiu, A. Tamii, O. Wieland, and M. Ziȩbliński

Published
2022

7. Feeding of the Residual States with GDR gamma Decay Studied by nuBall Coupled with PARIS

Author

M. Ciemała, M. Kmiecik, A. Maj, B. Fornal, P. Bednarczyk, N. Cieplicka-Oryńczak, Ł.W. Iskra, M. Matejska-Minda, K. Mazurek, B. Wasilewska, M. Ziębliński, F.C.L. Crespi, A. Bracco, S. Bottoni, F. Camera, S. Leoni, G. Benzoni, B. Million, O. Wieland, S. Brambilla, J. Wilson, I. Matea, M. Lebois, N. Jovančević, O. Dorvaux, Ch. Schmitt, J. Dudek, S. Kihel, P.J. Napiorkowski, M. Kicińska-Habior, I. Mazumdar, and V. Nanal

Subjects
General Physics and Astronomy
Published
2023

8. Complete set of bound negative-parity states in the neutron-rich nucleus 18N

Author

S. Ziliani, M. Ciemała, F. C. L. Crespi, S. Leoni, B. Fornal, T. Suzuki, T. Otsuka, A. Maj, P. Bednarczyk, G. Benzoni, A. Bracco, C. Boiano, S. Bottoni, S. Brambilla, M. Bast, M. Beckers, T. Braunroth, F. Camera, N. Cieplicka-Oryńczak, E. Clément, S. Coelli, O. Dorvaux, S. Erturk, G. de France, C. Fransen, A. Goldkuhle, J. Grębosz, M. N. Harakeh, Ł. W. Iskra, B. Jacquot, A. Karpov, M. Kicińska-Habior, Y. Kim, M. Kmiecik, A. Lemasson, S. M. Lenzi, M. Lewitowicz, H. Li, I. Matea, K. Mazurek, C. Michelagnoli, M. Matejska-Minda, B. Million, C. Müller-Gatermann, V. Nanal, P. Napiorkowski, D. R. Napoli, R. Palit, M. Rejmund, Ch. Schmitt, M. Stanoiu, I. Stefan, E. Vardaci, B. Wasilewska, O. Wieland, M. Ziębliński, M. Zielińska, Grand Accélérateur National d'Ions Lourds (GANIL), Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Institut Pluridisciplinaire Hubert Curien (IPHC), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS), Institut Laue-Langevin (ILL), ILL, Laboratoire de Physique des 2 Infinis Irène Joliot-Curie (IJCLab), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), and Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay

Subjects
Set (abstract data type), Physics, Particle physics, medicine.anatomical_structure, 010308 nuclear & particles physics, 0103 physical sciences, medicine, Neutron, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], 010306 general physics, Parity (mathematics), 01 natural sciences, Nucleus
Abstract

International audience; High-resolution γ-ray spectroscopy of N18 is performed with the Advanced GAmma Tracking Array, following deep-inelastic processes induced by an O18 beam on a Ta181 target. Six states are newly identified, which together with the three known excitations exhaust all negative-parity excited states expected in N18 below the neutron threshold. Spin and parities are proposed for all located states on the basis of decay branchings and comparison with large-scale shell-model calculations performed in the p-sd space, with the YSOX interaction. Of particular interest is the location of the 01− and 12− excitations, which provide strong constrains for cross-shell p-sd matrix elements based on realistic interactions and help to simultaneously reproduce the ground and first-excited states in N16 and N18, for the first time. Understanding the N18 structure may also have significant impact on neutron-capture cross-section calculations in r-process modeling including light neutron-rich nuclei.

Published
2021

9. Accessing tens-to-hundreds femtoseconds nuclear state lifetimes with low-energy binary heavy-ion reactions

Author

M. Zieblinski, J. Grebosz, K. Mazurek, Simone Coelli, S. Brambilla, H. J. Li, B. Million, M. Rejmund, Bertrand Jacquot, P. Bednarczyk, N. Cieplicka-Oryńczak, M. Ciemala, M. Bast, S. Ziliani, O. Dorvaux, S. Erturk, Eric Clément, Ł. W. Iskra, C. Fransen, S. M. Lenzi, B. Fornal, P. J. Napiorkowski, C. Müller-Gatermann, M. Zielińska, B. Wasilewska, I. Matea, A. Maj, M. Kmiecik, Y. H. Kim, M. Kicińska-Habior, C. Michelagnoli, I. Stefan, M. Beckers, F. C. L. Crespi, O. Wieland, M. Lewitowicz, R. Palit, D. R. Napoli, Ch. Schmitt, A. V. Karpov, M. Stanoiu, F. Camera, Emanuele Vardaci, M. Matejska-Minda, A. Bracco, G. Benzoni, S. Bottoni, S. Leoni, V. Nanal, C. Boiano, A. Lemasson, Mohsen Harakeh, Thomas Braunroth, A. Goldkuhle, Grand Accélérateur National d'Ions Lourds (GANIL), Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Institut Pluridisciplinaire Hubert Curien (IPHC), Université de Strasbourg (UNISTRA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut Laue-Langevin (ILL), ILL, Institut de Physique Nucléaire d'Orsay (IPNO), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Ciemala, M., Ziliani, S., Crespi, F. C. L., Leoni, S., Fornal, B., Maj, A., Bednarczyk, P., Benzoni, G., Bracco, A., Boiano, C., Bottoni, S., Brambilla, S., Bast, M., Beckers, M., Braunroth, T., Camera, F., Cieplicka-Orynczak, N., Clement, E., Coelli, S., Dorvaux, O., Erturk, S., De France, G., Fransen, C., Goldkuhle, A., Grebosz, J., Harakeh, M. N., Iskra, L. W., Jacquot, B., Karpov, A., Kicinska-Habior, M., Kim, Y. -H., Kmiecik, M., Lemasson, A., Lenzi, S. M., Lewitowicz, M., Li, H., Matea, I., Mazurek, K., Michelagnoli, C., Matejska-Minda, M., Million, B., Muller-Gatermann, C., Nanal, V., Napiorkowski, P., Napoli, D. R., Palit, R., Rejmund, M., Schmitt, C., Stanoiu, M., Stefan, I., Vardaci, E., Wasilewska, B., Wieland, O., Zieblinski, M., Zielinska, M., H. Niewodniczanski Institute of Nuclear Physics, Polska Akademia Nauk = Polish Academy of Sciences (PAN), Dipartimento di Fisica (Milano), Università degli Studi di Milano [Milano] (UNIMI), Istituto Nazionale di Fisica Nucleare, Sezione di Milano (INFN), Istituto Nazionale di Fisica Nucleare (INFN), Institut für Kernphysik der Universität zu Köln, Universität zu Köln, Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS), Università degli Studi di Milano = University of Milan (UNIMI), Universität zu Köln = University of Cologne, Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), and Nuclear Energy

Subjects
Nuclear reaction, Physics, Nuclear and High Energy Physics, 010308 nuclear & particles physics, Monte Carlo method, Hadron, FOS: Physical sciences, Binary number, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], 01 natural sciences, Excited state, 0103 physical sciences, Nuclear fusion, AGATA, Nuclear Experiment (nucl-ex), Connection (algebraic framework), Atomic physics, Nuclear Experiment, 010306 general physics
Abstract

A novel Monte Carlo technique has been developed to determine lifetimes of excited states in the tens-to-hundreds femtoseconds range in products of low-energy heavy-ion binary reactions, with complex velocity distributions. The method is based on a detailed study of Doppler-broadened $$\gamma $$ γ -ray lineshapes. Its relevance is demonstrated in connection with the $$^{18}\text {O}(7.0\, \text {MeV/u})+\,^{181}\text {Ta}$$ 18 O ( 7.0 MeV/u ) + 181 Ta experiment, performed at GANIL with the AGATA+VAMOS+PARIS setup, to study neutron-rich O, C, N, ... nuclei. Excited states in $$^{17}\text {O}$$ 17 O and $$^{19}\text {O}$$ 19 O , with known lifetimes, are used to validate the method over the $$\sim 20{-}400\,\text {fs}$$ ∼ 20 - 400 fs lifetime-sensitivity range. Emphasis is given to the unprecedented position resolution provided by $$\gamma $$ γ -tracking arrays, which turns out to be essential for reaching the required accuracy in Doppler-shift correction. The technique is anticipated to be an important tool for lifetime investigations in exotic neutron-rich nuclei, produced with intense ISOL-type beams.

Published
2021

10. Onset of triaxial deformation in Zn66 and properties of its first excited 0+ state studied by means of Coulomb excitation

Author

M. Matejska-Minda, M. Siciliano, M. Zielińska, L. Ramina, D. A. Testov, P. Sona, D. T. Doherty, K. Hadyńska-Klȩk, F. Nowacki, A. Boso, F. Recchia, G. De Gregorio, F. Galtarossa, P. Cocconi, M. Rampazzo, P. R. John, J. J. Valiente-Dobón, M. Komorowska, P. J. Napiorkowski, M. Rocchini, D. Rosso, Massimo Chiari, Tomás R. Rodríguez, N. Marchini, R. Menegazzo, M. Ottanelli, A. Gargano, A. Goasduff, A. Nannini, D. R. Napoli, B. Melon, D. Bazzacco, A. Perego, D. Mengoni, S. Riccetto, G. Jaworski, G. Benzoni, and H. Naïdja

Subjects
Physics, Spectrometer, 010308 nuclear & particles physics, Nuclear structure, Magnetic monopole, Coulomb excitation, 01 natural sciences, Matrix (mathematics), Excited state, 0103 physical sciences, Quadrupole, Atomic physics, 010306 general physics, Excitation
Abstract

The electromagnetic structure of Zn66 at low excitation energy was investigated via low-energy Coulomb excitation at INFN Legnaro National Laboratories, using the Gamma Array of Legnaro Infn Laboratories for nuclEar spectrOscopy (GALILEO) γ-ray spectrometer coupled to the SPIDER (Silicon PIe DEtectoR). A set of reduced E2, E3, and M1 matrix elements was extracted from the collected data using the gosia code, yielding 12 reduced transition probabilities between the low-spin states and the spectroscopic quadrupole moment of the 21+ state. The B(E2) values for transitions depopulating the 02+ state have been determined for the first time, allowing for the lifetime of this state to be deduced and, consequently, the ρ2(E0;02+→01+) monopole transition strength to be extracted. In addition, the B(E3;31−→01+) value has been determined for the first time in a Coulomb excitation experiment. The obtained results resolve the existing discrepancies between literature lifetimes and demonstrate that Zn66 cannot be described by using simple collective models. Therefore, new state-of-the-art beyond-mean-field and large-scale shell-model calculations were performed in order to interpret the structure of this nucleus. Both the experimental and theoretical results suggest that the triaxial degree of freedom has an important impact on electromagnetic properties of Zn66, while the unique features of the 02+ state indicate its distinct and rather isolated structure.

Published
2021

11. Testing ab initio nuclear structure in neutron-rich nuclei: Lifetime measurements of second 2+ state in C16 and O20

Author

M. Ciemała, S. Ziliani, F. C. L. Crespi, S. Leoni, B. Fornal, A. Maj, P. Bednarczyk, G. Benzoni, A. Bracco, C. Boiano, S. Bottoni, S. Brambilla, M. Bast, M. Beckers, T. Braunroth, F. Camera, N. Cieplicka-Oryńczak, E. Clément, S. Coelli, O. Dorvaux, S. Erturk, G. de France, C. Fransen, A. Goldkuhle, J. Grębosz, M. N. Harakeh, Ł. W. Iskra, B. Jacquot, A. Karpov, M. Kicińska-Habior, Y. Kim, M. Kmiecik, A. Lemasson, S. M. Lenzi, M. Lewitowicz, H. Li, I. Matea, K. Mazurek, C. Michelagnoli, M. Matejska-Minda, B. Million, C. Müller-Gatermann, V. Nanal, P. Napiorkowski, D. R. Napoli, R. Palit, M. Rejmund, Ch. Schmitt, M. Stanoiu, I. Stefan, E. Vardaci, B. Wasilewska, O. Wieland, M. Zieblinski, M. Zielińska, A. Ataç, D. Barrientos, B. Birkenbach, A. J. Boston, B. Cederwall, L. Charles, J. Collado, D. M. Cullen, P. Désesquelles, C. Domingo-Pardo, J. Dudouet, J. Eberth, V. González, J. Goupil, L. J. Harkness-Brennan, H. Hess, D. S. Judson, A. Jungclaus, W. Korten, M. Labiche, A. Lefevre, R. Menegazzo, D. Mengoni, J. Nyberg, R. M. Perez-Vidal, Zs. Podolyak, A. Pullia, F. Recchia, P. Reiter, F. Saillant, M. D. Salsac, E. Sanchis, O. Stezowski, Ch. Theisen, J. J. Valiente-Dobón, J. D. Holt, J. Menéndez, A. Schwenk, and J. Simonis

Subjects
Physics, 010308 nuclear & particles physics, 0103 physical sciences, Nuclear structure, Ab initio, Neutron, State (functional analysis), Atomic physics, 010306 general physics, 7. Clean energy, 01 natural sciences, Nuclear theory
Abstract

To test the predictive power of ab initio nuclear structure theory, the lifetime of the second 2(+) state in neutron-rich O-20, tau(2(2)(+)) = 150(-30)(+80) fs, and an estimate for the lifetime of ...

Published
2020

12. SPIDER: A Silicon PIe DEtectoR for low-energy Coulomb-excitation measurements

Author

P. R. John, P. Cocconi, Massimo Chiari, M. Rampazzo, D. Testov, K. Hadyńska-Klȩk, L. Ramina, P. Sona, M. Siciliano, A. Perego, M. Komorowska, A. Goasduff, B. Melon, P. J. Napiorkowski, D. Rosso, D. Mengoni, G. Benzoni, M. Rocchini, J. J. Valiente-Dobón, A. Nannini, C. Czelusniak, D. Bazzacco, L. Sottili, M. Ottanelli, F. Camera, S. Bettarini, A. Tredici, M. Brianzi, D. T. Doherty, N. Marchini, M. Zielinska, E. Pasquali, M. Matejska-Minda, F. Recchia, Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), and Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay

Subjects
Nuclear and High Energy Physics, Silicon, chemistry.chemical_element, Semiconductor detector performance and simulations, Coulomb excitation, Charge loss, 01 natural sciences, Ion, Coulomb-excitation, Radiation damage, Rutherford back-scattering, Silicon detectors, Optics, 0103 physical sciences, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], 010306 general physics, Instrumentation, Physics, Spider, Spectrometer, 010308 nuclear & particles physics, business.industry, Detector, chemistry, AGATA, Galileo (vibration training), business
Abstract

International audience; SPIDER is a new array of segmented silicon detectors for low-energy Coulomb-excitation experiments, designed as an ancillary device for modern γ -ray spectrometers such as GALILEO and AGATA. Currently, it is used at the INFN Legnaro National Laboratories (LNL) for experiments with the GALILEO γ -ray array and the stable beams provided by the Tandem-XTU, ALPI-PIAVE accelerator complex. In this paper, a detailed description of SPIDER is presented, as well as the outcomes from the first in-beam experiment of the array coupled with GALILEO. In particular, radiation damage and cross-talk/charge-sharing effects induced by energetic heavy ions in SPIDER are investigated and the capabilities of the array to perform on-line Rutherford back-scattering analysis of the exploited target are presented. The material reported here can be used to plan future experiments with the GALILEO-SPIDER setup with the presently available stable beams at LNL and paves the way for future experimental campaigns with the radioactive beams provided in the near future by the SPES facility at LNL.

Published
2020

13. Coulomb excitation studies at LNL with the SPIDER-GALILEO set-up

Author

N. Marchini, M. Matejska-Minda, M. Zielińska, A. Goasduff, M. Saxena, M. Ottanelli, F. Camera, D. R. Napoli, J. J. Valiente-Dobón, A. Illana, A. Perego, F. Recchia, P. J. Napiorkowski, G. Benzoni, D. Mengoni, Massimo Chiari, P. Sona, D. Bazzacco, M. Rocchini, D. T. Doherty, A. Nannini, P. R. John, K. Hadyńska-Klȩk, M. Siciliano, M. Komorowska, and D. Testov

Subjects
Physics, Coulomb excitation, experimental methods in nuclear physics, gamma transitions, Physics::Instrumentation and Detectors, Detector, Condensed Matter Physics, 01 natural sciences, Atomic and Molecular Physics, and Optics, Nuclear shape, Particle detector, 010305 fluids & plasmas, Nuclear physics, Acceleration, 0103 physical sciences, Physics::Accelerator Physics, Galileo (vibration training), Nuclear Experiment, 010306 general physics, Mathematical Physics, Radioactive beam
Abstract

Low-energy Coulomb excitation is one of the simplest and most known tools to study the nuclear shape; for this reason it is nowadays widely used at radioactive beam facilities. The SPES facility, for the acceleration of radioactive beams will soon provide the first exotic beams at the Laboratori Nazionali di Legnaro (LNL) in Italy.a#13; To this end a new particle detector (Silicon PIe DEtectoR) to be used for Coulomb excitation studies has been installed at LNL. SPIDER has been coupled to the GALILEO array of germanium detectors, and a number of experiments have been already successfully performed. This paves the way for future experiments with the radioactive beams provided by the SPES facility.

Published
2020

14. Energy response and identification efficiency of CsI(Tl) crystals irradiated with energetic protons

Author

M. Cinausero, P. Ottanelli, Maurizio Bini, Sandro Barlini, Giovanni Casini, Giuseppe Verde, G. Mantovani, D. Fabris, R. Bougault, Giacomo Poggi, M. Bruno, A. Maj, K. Mazurek, M. Henri, N. Cieplicka-Oryńczak, Tomasz Kozik, O. Lopez, M. Ciemala, F. Gramegna, T. Marchi, Andrea Stefanini, A. Chibhi, M. Matejska-Minda, N. Le Neindre, J.D. Frankland, A.J. Kordyasz, S. Upadhyahya, B. Borderie, Eric Bonnet, M. Zieblinski, Gabriele Pasquali, B. Sowicki, A. Buccola, Ivano Lombardo, A. Camaiani, M. Parlog, Diego Gruyer, E. Vient, C. Frosin, Magda Cicerchia, Alessandro Olmi, Simone Valdré, Silvia Piantelli, J. A. Dueñas, Laboratoire de physique corpusculaire de Caen (LPCC), Université de Caen Normandie (UNICAEN), Normandie Université (NU)-Normandie Université (NU)-École Nationale Supérieure d'Ingénieurs de Caen (ENSICAEN), Normandie Université (NU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de physique subatomique et des technologies associées (SUBATECH), Université de Nantes - Faculté des Sciences et des Techniques, Université de Nantes (UN)-Université de Nantes (UN)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-IMT Atlantique Bretagne-Pays de la Loire (IMT Atlantique), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT), Institut de Physique Nucléaire d'Orsay (IPNO), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Grand Accélérateur National d'Ions Lourds (GANIL), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Normandie Université (NU)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Université de Nantes - UFR des Sciences et des Techniques (UN UFR ST), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), and Université de Nantes (UN)-Université de Nantes (UN)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-IMT Atlantique (IMT Atlantique)

Subjects
Nuclear and High Energy Physics, Proton, heavy ion collisions, Cyclotron, chemistry.chemical_element, particle identification method, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], CsI(Tl) detectors, 7. Clean energy, 01 natural sciences, Collimated light, law.invention, 99-00, Crystal, Particle identification method, law, 0103 physical sciences, Heavy ion collisions, Irradiation, 010306 general physics, Nuclear Experiment, Instrumentation, ComputingMilieux_MISCELLANEOUS, Light-energy response, detectors, light-energy response, Physics, [PHYS]Physics [physics], Range (particle radiation), 010308 nuclear & particles physics, 00-01, chemistry, Thallium, Physics::Accelerator Physics, Atomic physics, Beam (structure)
Abstract

International audience; The proton energy calibration and the corresponding identification efficiency of the Thallium activated Cesium Iodide (CsI(Tl)) crystals of the Fazia detection system have been studied in the range of 59–180 MeV by using the proton beam delivered by the cyclotron of the CCB (Cyclotron Center Bronowice) facility. The light output versus energy is linear in the lower portion of the investigated energy range while showing a deviation from linearity on the higher energy side. The effects of proton induced nuclear collisions have been identified and estimated via Pulse Shape Analysis in CsI(Tl) crystals. Experimental efficiency for proton identification in the examined energy range is deduced and compared with GEANT4 simulations. For a well collimated crystal, and at the highest considered energy, the efficiency value comes out to be about 70%.

Published
2020

15. Quadrupole Deformation of 110Cd Studied with Coulomb Excitation

Author

B. Jigmeddorj, R. Kumar, J. Iwanicki, S. Dutt, J. L. Wood, V. Bildstein, D. T. Doherty, Massimo Chiari, J. M. Allmond, M. Palacz, F. Oleszczuk, M. Kisieliński, T. Marchlewski, P. J. Napiorkowski, M. Hlebowicz, J. Srebrny, E. Pasquali, Mansi Saxena, E. Sahin, A. Tucholski, T. Abraham, M. Rocchini, B. Olaizola, H. Bidaman, M. Matejska-Minda, K. Hadynska-Klek, P. E. Garrett, L. Próchniak, K. Wrzosek-Lipska, M. Komorowska, F. L. Bello Garrote, C. Burbadge, M. Kowalczyk, Erin E. Peters, A. Diaz Varela, S. W. Yates, Département de Physique Nucléaire (ex SPhN) (DPHN), Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), and Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay

Subjects
Physics, Science & Technology, [PHYS.NUCL]Physics [physics]/Nuclear Theory [nucl-th], 010308 nuclear & particles physics, Physics, Multidisciplinary, General Physics and Astronomy, Coulomb excitation, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], 01 natural sciences, Bohr model, symbols.namesake, STATES, MOMENTS, SHAPES, 0103 physical sciences, Quadrupole, Physical Sciences, symbols, Heavy ion, Atomic physics, 010306 general physics, Hamiltonian (quantum mechanics)
Abstract

International audience; The low-energy electromagnetic structure of 110Cd was studied using safe-energy Coulomb excitation at the Heavy Ion Laboratory, University of Warsaw. The preliminary results on the quadrupole deformation of lowlying 0+ states in 110Cd are presented and compared to the recent beyondmean-field and General Bohr Hamiltonian calculations.

Published
2020

16. Lifetime measurements of short-lived excited states, and shape changes in As69 and Ge66 nuclei

Author

S. Brambilla, M. Zieblinski, T. Hüyük, R. Menegazzo, M. Matejska-Minda, F. Recchia, W. Meczynski, S. Leoni, C. Michelagnoli, E. Farnea, B. Fornal, B. Szpak, P. Bednarczyk, E. Sahin, G. Jaworski, W. Y. Liang, A. Maj, C. A. Ur, J. Styczen, G. de Angelis, M. Krzysiek, M. Ciemala, M. Palacz, Furong Xu, Sibel Zehra Aydin, M. Kmiecik, and R. Wadsworth

Subjects
Physics, 010308 nuclear & particles physics, Excited state, 0103 physical sciences, Atomic physics, 010306 general physics, 01 natural sciences
Published
2019

17. Energy response and identification efficiency of CsI(Tl) crystals irradiated with energetic protons

Author

A.J. Kordyasz, M. Zieblinski, S. Upadhyahya, R. Bougault, M. Henri, A. Chibhi, E. Bonnet, Andrea Stefanini, N. Cieplicka-Oryńczak, M. Cinausero, C. Frosin, M. Ciemala, Simone Valdré, D. Fabris, F. Gramegna, Giovanni Casini, Giuseppe Verde, Gabriele Pasquali, D. Gruyer, A. Camaiani, O. Lopez, Alessandro Olmi, B. Sowicki, A. Buccola, M. Bruno, Silvia Piantelli, K. Mazurek, T. Marchi, M. Matejska-Minda, G. Mantovani, A. Maj, Ivano Lombardo, B. Borderie, Magda Cicerchia, Giacomo Poggi, E. Vient, P. Ottanelli, Maurizio Bini, J Dueñs, J.D. Frankland, Sandro Barlini, N. Le Neindre, M. Parlog, Laboratoire de physique corpusculaire de Caen (LPCC), Université de Caen Normandie (UNICAEN), Normandie Université (NU)-Normandie Université (NU)-École Nationale Supérieure d'Ingénieurs de Caen (ENSICAEN), Normandie Université (NU)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Laboratoire de physique subatomique et des technologies associées (SUBATECH), Université de Nantes - UFR des Sciences et des Techniques (UN UFR ST), Université de Nantes (UN)-Université de Nantes (UN)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-IMT Atlantique Bretagne-Pays de la Loire (IMT Atlantique), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT), Institut de Physique Nucléaire d'Orsay (IPNO), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Grand Accélérateur National d'Ions Lourds (GANIL), Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Normandie Université (NU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université de Nantes (UN)-Université de Nantes (UN)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-IMT Atlantique (IMT Atlantique), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), and Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)

Subjects
History, Materials science, 010308 nuclear & particles physics, 7. Clean energy, 01 natural sciences, 030218 nuclear medicine & medical imaging, Computer Science Applications, Education, 03 medical and health sciences, 0302 clinical medicine, 0103 physical sciences, Physics::Accelerator Physics, Irradiation, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], Atomic physics, Nuclear Experiment, Energy (signal processing)
Abstract

Proton energy calibration and identification efficiency of few Thallium activated Cesium Iodide (CsI(Tl)) crystals of the FAZIA detection system, have been studied in the range 59-180 MeV by using the proton beam delivered by the cyclotron of the CCB (Cyclotron Center Bronowice) facility. We observe that the light output versus energy is linear in the lower investigated energy range while showing a deviation from linearity above 140 MeV. The effects of proton induced nuclear reactions and multiple scattering causing incomplete energy deposition (IED) events have been identified and estimated via Pulse Shape Analysis in CsI(Tl) crystals. The measured experimental efficiency for proton identification in the examined energy range is then compared with GEANT4 simulations. For a centered collimated irradiation on the crystal, and at the highest measured energy, the resulting experimental efficiency value is about 70%.

Published
2019

18. Measurement of the $\gamma$ Decay from the Energy Region of the Pygmy Dipole States Excited in the $^{208}$Pb$(p,p'\gamma )$ Reaction at CCB

Author

M. Matejska-Minda, Piotr Pawłowski, P. J. Napiorkowski, A. Bracco, M. Zieblinski, J. Grebosz, Y. Sobolev, B. Wasilewska, M. Kmiecik, S. Brambilla, P. Bednarczyk, F. C. L. Crespi, N. Cieplicka-Oryńczak, M. Krzysiek, M. Ciemala, J. Łukasik, K. Mazurek, A. Maj, K. Guguła, Izabela Ciepał, M. Lewitowicz, Ch. Schmitt, M.N. Harakeh, B. Sowicki, B. Fornal, M. Jeżabek, M. Kicińska-Habior, P. Kulessa, Grand Accélérateur National d'Ions Lourds (GANIL), Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Institut Pluridisciplinaire Hubert Curien (IPHC), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS), Research unit Nuclear & Hadron Physics, Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), and Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)

Subjects
Physics, 010308 nuclear & particles physics, Cyclotron, Nuclear structure, Gamma ray, General Physics and Astronomy, Scintillator, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], 01 natural sciences, 7. Clean energy, Spectral line, law.invention, Nuclear physics, Dipole, law, Excited state, 0103 physical sciences, Nuclear Experiment
Abstract

International audience; For a few years, the medical cyclotron Proteus C-235 at the Cyclotron Centre Bronowice in Kraków, Poland has been regularly used for nuclear structure experiments. One of the ongoing studies is focused on the γ decay of collective states populated in (p, p0γ) reactions. In a recent experiment, γ decays of excited states in the energy region of the Pygmy Dipole States in 208Pb have been observed. Good efficiency and energy resolution provided by the PARIS clusters and LaBr3:Ce scintillators facilitate a comparison of the obtained energy spectra with previous measurements of pygmy states in this nucleus.

Published
2019

19. SPECTROSCOPY OF NEUTRON-RICH C, O, N AND F ISOTOPES WITH THE AGATA plus PARIS plus VAMOS SETUP AT GANIL

Author

S. Ziliani, M. Ciemała, F. Crespi, S. Leoni, B. Fornal, A. Maj, P. Bednarczyk, G. Benzoni, A. Bracco, C. Boiano, S. Bottoni, S. Brambilla, M. Bast, M. Beckers, T. Braunroth, F. Camera, N. Cieplicka-Oryńczak, E. Clément, O. Dorvaux, S. Erturk, G. De France, A. Goldkuhle, J. Grębosz, M.N. Harakeh, Ł.W. Iskra, B. Jacquot, M. Kicińska-Habior, Y. Kim, M. Kmiecik, A. Lemasson, H. Li, I. Matea, K. Mazurek, C. Michelagnoli, B. Million, C. Müller-Gatermann, P. Napiorkowski, V. Nanal, M. Matejska-Minda, M. Rejmund, Ch. Schmitt, M. Stanoiu, I. Stefan, B. Wasilewska, M. Ziębliński, Fornal, Bogdan -- 0000-0002-1142-8067, Ciemala, Michal -- 0000-0001-5328-720X, [Ziliani, S. -- Crespi, F. -- Leoni, S. -- Bracco, A. -- Bottoni, S. -- Camera, F.] Univ Milan, Milan, Italy -- [Ziliani, S. -- Crespi, F. -- Leoni, S. -- Benzoni, G. -- Bracco, A. -- Boiano, C. -- Bottoni, S. -- Brambilla, S. -- Camera, F. -- Million, B.] INFN, Sez Milano, Milan, Italy -- [Ciemala, M. -- Fornal, B. -- Maj, A. -- Bednarczyk, P. -- Cieplicka-Orynczak, N. -- Grebosz, J. -- Iskra, L. W. -- Kmiecik, M. -- Mazurek, K. -- Wasilewska, B.] Polish Acad Sci, Inst Nucl Phys, Krakow, Poland -- [Bast, M. -- Beckers, M. -- Braunroth, T. -- Goldkuhle, A. -- Mueller-Gatermann, C.] IKP Cologne, Cologne, Germany -- [Clement, E. -- De France, G. -- Jacquot, B. -- Kim, Y. -- Lemasson, A. -- Li, H. -- Rejmund, M.] CEA, DSAM, GANIL, Caen, France -- [Clement, E. -- De France, G. -- Jacquot, B. -- Kim, Y. -- Lemasson, A. -- Li, H. -- Rejmund, M.] CNRS, IN2P3, Caen, France -- [Dorvaux, O. -- Schmitt, Ch] CNRS, IN2P3, IPHC UMR 7178, Strasbourg, France -- [Erturk, S.] Nigde Univ, Nigde, Turkey -- [Harakeh, M. N.] KVI Ctr Adv Radiat Technol, Groningen, Netherlands -- [Kicinska-Habior, M. -- Matea, I -- Stefan, I] Warsaw Univ, Fac Phys, Warsaw, Poland -- [Kicinska-Habior, M. -- Matea, I -- Stefan, I] IPN, Orsay Lab, Orsay, France -- [Michelagnoli, C.] ILL Grenoble, Grenoble, France -- [Napiorkowski, P. -- Matejska-Minda, M.] Univ Warsaw, Heavy Ion Lab, Warsaw, Poland -- [Nanal, V] Dept Nucl & Atom Phys, Mumbai, Maharashtra, India -- [Stanoiu, M.] IFIN HH, Bucharest, Romania -- [Zieblinski, M.] CEA, DRF, IRFU, Ctr CEA Saclay, Saclay, France, Grand Accélérateur National d'Ions Lourds (GANIL), Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Institut Pluridisciplinaire Hubert Curien (IPHC), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS), Institut de Physique Nucléaire d'Orsay (IPNO), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Institut Laue-Langevin (ILL), ILL, Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), 0-Belirlenecek, and Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)

Subjects
Physics, Isotope, Spectrometer, 010308 nuclear & particles physics, General Physics and Astronomy, Context (language use), [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], 7. Clean energy, 01 natural sciences, 0-Belirlenecek, Nuclear physics, Nuclear interaction, Ab initio quantum chemistry methods, 0103 physical sciences, Neutron, AGATA, Spectroscopy, Nuclear Experiment
Abstract

Zakopane Conference on Nuclear Physics - Extremes of the Nuclear Landscape -- AUG 26-SEP 02, 2018 -- Zakopane, POLAND, WOS: 000463866500052, Recent ab initio calculations pointed out the importance of the three-body terms of the nuclear interaction, in the description of the structure of n-rich systems. The state lifetimes in light n-rich carbon and oxygen nuclei have been predicted to be sensitive to the three-body terms and, in this context, an experiment, aiming at the measurement of these lifetimes, was performed in GANIL in July 2017 with the AGATA and PARIS arrays coupled to the VAMOS++ magnetic spectrometer. Details on the AGATA preliminary data analysis are presented., National Science Centre, Poland (NCN) [2013/08/M/ST2/00257, 2014/14/M/ST2/00738, 2016/22/M/ST2/00269], This work was supported by the National Science Centre, Poland (NCN) under contracts No. 2013/08/M/ST2/00257, 2014/14/M/ST2/00738 and 2016/22/M/ST2/00269.

Published
2019

20. Revised Lifetime of the \(11/2^-\) State in \(^{45}\)Sc via Coulomb Excitation

Author

H. J. Wollersheim, P. J. Napiorkowski, Trupti H Trivedi, Avinash Agarwal, S. Kumar, M. Kicińska-Habior, Arshiya Sood, R. Kumar, S. Bhattacharya, Md. Shuaib, I. Ahmed, R. K. Bhowmik, Mansi Saxena, Anna Stolarz, Avesh K. Tyagi, N. K. Rai, V. Nanal, Jasmeet Kaur, R. Palit, Akhil Jhingan, M. S. A. Kumar, S. Dutt, M. Matejska-Minda, and Deepak Kumar

Subjects
Physics, General Physics and Astronomy, ddc:530, State (functional analysis), Coulomb excitation, Atomic physics
Abstract

Acta physica Polonica / B 51(3), 829 (2020). doi:10.5506/APhysPolB.51.829, Published by Inst. of Physics, Jagellonian Univ., Cracow

Published
2020

21. Testing of the Brink--Axel Hypothesis with the HECTOR+PARIS+KRATTA Set-up

Author

N. Cieplicka-Oryńczak, M. Krzysiek, S. Brambilla, M. Ciemala, P. Bednarczyk, A. Maj, A. Bracco, P. J. Napiorkowski, J. Łukasik, J. Isaak, Izabela Ciepał, B. Fornal, P. Lasko, L. Qi, M. Stanoiu, Y. Sobolev, M. Lewitowicz, S. Bottoni, M. Matejska-Minda, Ch. Schmitt, Piotr Pawłowski, B. Wasilewska, Mohsen Harakeh, K. Guguła, Wiktor Parol, Ł. W. Iskra, F. C. L. Crespi, M. Zieblinski, S. Kihel, J. Grebosz, Atsushi Tamii, M. Kmiecik, A. Szperłak, B. Sowicki, K. Mazurek, Attila Krasznahorkay, Institut Pluridisciplinaire Hubert Curien (IPHC), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS), Grand Accélérateur National d'Ions Lourds (GANIL), Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Institut de Physique Nucléaire d'Orsay (IPNO), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), and Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)

Subjects
Physics, Set (abstract data type), [PHYS.NUCL]Physics [physics]/Nuclear Theory [nucl-th], 010308 nuclear & particles physics, 0103 physical sciences, General Physics and Astronomy, Art history, Physics::Accelerator Physics, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], 010306 general physics, 01 natural sciences
Abstract

International audience; A very first experiment in the field of nuclear structure at the Cyclotron Centre Bronowice (CCB) facility in Kraków, Poland has been performed recently. The medical cyclotron IBA Proteus C-235 located at CCB produces proton beams in the energy range of 70–230 MeV, that can be used for experimental purposes as well. In the reported measurement, the energy of scattered protons at the incident beam energy of 85 MeV and emitted γ rays from the excited 208Pb target were measured in coincidence. During the experiment excitations in the energy region of the Giant Quadrupole and Dipole Resonances, as well as the Pygmy Dipole States were observed. By applying different conditions on the data, spectra corresponding to γ decays of excited states to selected low-lying levels in 208Pb were obtained, allowing a look into the Brink–Axel hypothesis.

Published
2018

22. Determination of Lifetimes of Excited States in Neutron-rich $^{20}$O Isotope from Experiment with the AGATA+PARIS+VAMOS Setup

Author

M. Ciemała, S. Ziliani, F. Crespi, S. Leoni, B. Fornal, A. Maj, P. Bednarczyk, G. Benzoni, A. Bracco, C. Boiano, S. Bottoni, S. Brambilla, M. Bast, M. Beckers, T. Braunroth, F. Camera, N. Cieplicka-Oryńczak, E. Clément, O. Dorvaux, S. Ertürk, G. De France, A. Goldkuhle, J. Grębosz, M.N. Harakeh, Ł.W. Iskra, B. Jacquot, A. Karpov, M. Kicińska-Habior, Y. Kim, M. Kmiecik, A. Lemasson, H. Li, I. Matea, K. Mazurek, C. Michelagnoli, B. Millon, C. Müller-Gatermann, P. Napiorkowski, V. Nanal, M. Matejska-Minda, M. Rejmund, B. Sowicki, Ch. Schmitt, M. Stanoiu, I. Stefan, B. Wasilewska, M. Zielińska, M. Ziębliński, Grand Accélérateur National d'Ions Lourds (GANIL), Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Institut Pluridisciplinaire Hubert Curien (IPHC), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS), Institut de Physique Nucléaire d'Orsay (IPNO), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Institut Laue-Langevin (ILL), ILL, Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), and Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS)

Subjects
Physics, Isotope, 010308 nuclear & particles physics, Nuclear Theory, General Physics and Astronomy, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], 01 natural sciences, 7. Clean energy, Nuclear physics, Excited state, 0103 physical sciences, AGATA, Neutron, Nuclear Experiment
Abstract

International audience; An experiment aiming at measuring lifetimes of the second 2+ excited states in neutron-rich C and O isotopes was recently performed at the GANIL laboratory, in France. In these nuclei, recent ab initio calculations provide a detailed description of the nuclear excited states, predicting a strong sensitivity of the electromagnetic transition probabilities to the details of the nucleon–nucleon interactions, especially in connection with the role played by the three-body (NNN) forces. Thus, the measurement of 2 + states lifetimes in this region will be a stringent test of the importance of including the NNN forces in describing the electromagnetic properties of selected nuclear states. This contribution reports on the status of the experimental analysis for the case of lifetimes in 20O.

Published
2018

23. Coulomb Excitation of (142) Xe

Author

S. Ilieva, P. J. Napiorkowski, M. Thürauf, C. Berner, G. S. Simpson, G. Rainovski, Th. Kröll, Liam Gaffney, B. Siebeck, J. Cederkäll, M. Matejska-Minda, D. Rosiak, M. Ramdhane, R. Lozeva, L. Werner, P. Reiter, C. Berger, M. Zielinska, C. Henrich, V. Bildstein, M. Seidlitz, G. de Angelis, Daniel Cox, M. von Schmid, J. Ojala, Janne Pakarinen, G. Fernández Martínez, H. B. Rhee, J. Snäll, K. Arnswald, A. Illana Sisón, T. Berry, N. Warr, G. Georgiev, H. De Witte, V. Vaquero Soto, European Commission, Federal Ministry of Education and Research (Germany), SCOAP, Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Centre de Sciences Nucléaires et de Sciences de la Matière (CSNSM), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Université Grenoble Alpes (UGA), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), and Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])

Subjects
Physics, Large Hadron Collider, Spectrometer, ta114, 010308 nuclear & particles physics, Detector, Nuclear Theory, General Physics and Astronomy, ksenon, Coulomb excitation, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], 01 natural sciences, xenon, Nuclear physics, nuclear physics, 0103 physical sciences, Quadrupole, Physics::Accelerator Physics, Nuclear Physics - Experiment, MAGIC (telescope), ydinfysiikka, Nuclear Experiment, Beam (structure)
Abstract

5 pags., 2 figs. -- Open Access funded by Creative Commons Atribution Licence 4.0. -- Presented at the XXXV Mazurian Lakes Conference on Physics, Piaski, Poland, September 3–9, 2017., The even–even nucleus 142Xe lies north-east of the doubly magic 132Sn on the neutron-rich side of the nuclear chart. In order to gain further information on the octupole collectivity and the evolution of quadrupole collectivity in this region, a “safe” Coulomb excitation experiment was carried out at the new HIE-ISOLDE facility (CERN) at the end of 2016. As the gamma-ray detector the Miniball spectrometer was used. Beam and target nuclei were detected using C-REX, i.e. an array of segmented Si detectors, covering forward as well as backward angles in the laboratory frame., This work is supported by the German Federal Ministry of Education and Research (BMBF) under contract 05P15RDCIA, by the EU under contract ENSAR 262010, by ISOLDE and the IS548-MINIBALL Collaboration.

Published
2018

24. Electromagnetic Properties of $^{45}$Sc Studied by Low-energy Coulomb Excitation

Author

M. Rocchini, P. Bednarczyk, P. J. Napiorkowski, A. Maj, Anna Stolarz, M. Kowalczyk, M. Matejska-Minda, M. Kicińska-Habior, R. Kumar, T. Abraham, M. Kisieliński, L. Próchniak, J. Styczen, J. Iwanicki, D. T. Doherty, J. Srebrny, M. Zielińska, T. Marchlewski, B. Wasilewska, G. Kamiński, K. Hadynska-Klek, K. Wrzosek-Lipska, M. Palacz, A. Nannini, V. Nanal, Mansi Saxena, M. Komorowska, A. Bezbakh, M. Siciliano, P. Matuszczak, Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), and Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay

Subjects
Physics, Low energy, General Physics and Astronomy, Coulomb excitation, Atomic physics, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex]
Abstract

International audience; A Coulomb excitation experiment to study electromagnetic properties of 45Sc was performed at the Heavy Ion Laboratory, University of Warsaw, using a 70 MeV 32S beam. Measured γ-ray intensities together with existing spectroscopic data were used to extract a set of matrix elements between the populated states. Upper limit on B(E3;7/2 − → 5/2 +) is given.

Published
2017

25. The first results from studies of gamma decay of proton-induced excitations at the ccb facility

Author

A. Szperłak, B. Wasilewska, M. Kmiecik, Izabela Ciepał, K. Mazurek, Piotr Pawłowski, J. Łukasik, Wiktor Parol, F. C. L. Crespi, B. Fornal, M. Zieblinski, Atsushi Tamii, J. Grebosz, B. Sowicki, A. Maj, M. Matejska-Minda, K. Guguła, P. J. Napiorkowski, S. Brambilla, Ł. W. Iskra, M. Krzysiek, M. Ciemala, P. Lasko, A. Bracco, and A. Giaz

Subjects
Physics, Nuclear physics, Physics and Astronomy (all), Proton, Gamma ray, General Physics and Astronomy
Published
2017

26. Constraining Hot Sources in Central Heavy-ion Collisions Below 20 MeV/$u$

Author

B. Fornal, Alessandro Olmi, O. V. Fotina, G. Prete, Luca Morelli, J. Mabiala, D. Fabris, Emanuele Vardaci, Maurizio Bini, M. D'Agostino, B. Szpak, S. Leoni, Giorgio Baiocco, Simone Valdré, A. Maj, Giovanni Casini, Maria Colonna, Magda Cicerchia, S. Myalski, B. Million, S. Brambilla, F. C. L. Crespi, M. Kmiecik, M. Zieblinski, A. Bracco, Gabriele Pasquali, M. Bruno, Sandro Barlini, A. Giaz, F. Camera, W. Meczynski, G. Benzoni, O. Wieland, M. Matejska-Minda, V. L. Kravchuk, B. Wasilewska, R. Nicolini, N. Blasi, Silvia Piantelli, F. Gramegna, Tommaso Marchi, K. Mazurek, J. Styczen, S. Appannababu, D. Montanari, M. Degerlier, M. Cinausero, M. Krzysiek, M. Ciemala, P. Bednarczyk, Valdré, S., Piantelli, S., Casini, G., Barlini, S., Ciemała, M., Kmiecik, M., Maj, A., Mazurek, K., Cinausero, M., Gramegna, F., Kravchuk, V. L., Morelli, L., Marchi, T., Appannababu, S., Baiocco, G., Bednarczyk, P., Benzoni, G., Bini, M., Blasi, N., Bracco, A., Brambilla, S., Bruno, M., Camera, F., Cicerchia, M., Colonna, M., Crespi, F. C. L., D'Agostino, M., Degerlier, M., Fabris, D., Fornal, B., Fotina, O. V., Giaz, A., Krzysiek, M., Leoni, S., Mabiala, J., Matejska Minda, M., Męczyński, W., Million, B., Montanari, D., Myalski, S., Nicolini, R., Olmi, A., Pasquali, G., Prete, G., Styczeń, J., Szpak, B., Vardaci, Emanuele, Wasilewska, B., Wieland, O., and Ziębliński, M.

Subjects
Nuclear physics, Physics, Physics and Astronomy (all), General Physics and Astronomy, Heavy ion
Abstract

Pre-equilibrium emissions affect the production of excited systems in nuclear reactions, thus modifying their properties which enter as input parameters in the comparison with statistical models. In this contribution, we discuss this subject referring to recent results from experiments performed at Legnaro National Laboratories (Italy) with the GARFIELD apparatus complemented with other detectors. ispartof: Acta Physica Polonica B vol:48 issue:3 pages:635-639 ispartof: location:Zakopane: POLAND status: published

Published
2017
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27. First measurement with a new setup for low-energy Coulomb excitation studies at INFN LNL

Author

M. Zielińska, L. Ramina, P. R. John, J. J. Valiente-Dobón, M. Rocchini, S. Riccetto, M. Komorowska, D. R. Napoli, K. Hadyńska-Klȩk, D. Testov, F. Galtarossa, R. Menegazzo, P. J. Napiorkowski, B. Melon, A. Perego, D. T. Doherty, A. Boso, M. Siciliano, A. Nannini, P. Cocconi, D. Rosso, Massimo Chiari, P. Sona, G. Jaworski, F. Recchia, A. Goasduff, G. Benzoni, M. Matejska-Minda, M. Ottanelli, M. Rampazzo, D. Bazzacco, D. Mengoni, Département de Physique Nucléaire (ex SPhN) (DPHN), Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), and Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay

Subjects
Physics, Spectrometer, 010308 nuclear & particles physics, Coulomb excitation, Gamma spectroscopy, Solid-state detectors, Atomic and Molecular Physics, and Optics, Mathematical Physics, Condensed Matter Physics, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], 01 natural sciences, Particle detector, Spectral line, Nuclear physics, Atomic and Molecular Physics, 0103 physical sciences, Measuring instrument, AGATA, Atomic physics, and Optics, 010306 general physics, Excitation, Beam (structure)
Abstract

International audience; A new segmented particle detector, SPIDER, has been designed to be used as an ancillary device with the GALILEO γ-ray spectrometer, as well as with other multi-detector γ-ray arrays that will be available at LNL in the future (e.g. AGATA). To commission the SPIDER-GALILEO experimental setup, a multi-step Coulomb excitation experiment was carried out with a 240 MeV beam of (66)Zn produced by the Tandem-XTU accelerator at INFN Laboratori Nazionali di Legnaro. The measured particle and γ-ray spectra are compared with the results of detailed GEANT4 simulations which used the Coulomb excitation cross sections, estimated with the computer code GOSIA, as an input. The preliminary results indicate that precise transition probabilities will be obtained which are essential for solving discrepancies reported in the literature for this nucleus.

Published
2017

28. Investigation of an Intruder Band in $^{45}$Sc via Coulomb Excitation

Author

H. J. Wollersheim, S. Dutt, P. J. Napiorkowski, M. Matejska-Minda, Trupti H Trivedi, R. Palit, Deepak Kumar, Md. Shuaib, Arshiya Sood, Akhil Jhingan, Avesh K. Tyagi, Mansi Saxena, N. K. Rai, S. Kumar, M. S. A. Kumar, Avinash Agarwal, V. Nanal, R. K. Bhowmik, Jasmeet Kaur, I. Ahmed, M. Kicińska-Habior, R. Kumar, S. Bhattacharya, and Anna Stolarz

Subjects
Physics, General Physics and Astronomy, Coulomb excitation, Atomic physics
Published
2019

29. Charged particle decay of hot and rotatingMo88nuclei in fusion-evaporation reactions

Author

R. Nicolini, Giorgio Baiocco, Giovanni Casini, T. Marchi, Gabriele Pasquali, Sandro Barlini, M. Kmiecik, A. Bracco, O. Wieland, M. Bruno, P. Bednarczyk, B. Szpak, M. Matejska-Minda, G. Benzoni, S. Carboni, S. Brambilla, F. Gramegna, J. Styczen, A. Chbihi, Alessandra Corsi, Luca Morelli, D. Fabris, A. Olmi, A. Giaz, L. Bardelli, A. Maj, N. Blasi, Oliver J. Roberts, M. Cinausero, W. Meczynski, Silvia Piantelli, S. Leoni, Simone Valdré, J.P. Wieleczko, D. Montanari, M. Zieblinski, S. Myalski, K. Mazurek, F. Camera, M. Degerlier, M. Krzysiek, M. Ciemala, M. D'Agostino, B. Wasilewska, Maurizio Bini, F. C. L. Crespi, G. Prete, V. L. Kravchuk, I. Mazumdar, B. Million, and B. Fornal

Subjects
Physics, Nuclear and High Energy Physics, Fusion, 010308 nuclear & particles physics, Evaporation, Inelastic collision, 01 natural sciences, Charged particle, medicine.anatomical_structure, 0103 physical sciences, medicine, Atomic physics, Nuclear Experiment, 010306 general physics, Spin (physics), Nucleus, Beam (structure), Excitation
Abstract

A study of fusion-evaporation and (partly) fusion-fission channels for the $^{88}$Mo compound nucleus, produced at different excitation energies in the reaction $^{48}$Ti + $^{40}$Ca at 300, 450 and 600 MeV beam energies, is presented. Fusion-evaporation and fusion-fission cross sections have been extracted and compared with the existing systematics. Experimental data concerning light charged particles have been compared with the prediction of the statistical model in its implementation in the Gemini++ code, well suited even for high spin systems, in order to tune the main model parameters in a mass region not abundantly covered by exclusive experimental data. Multiplicities for light charged particles emitted in fusion evaporation events are also presented. Some discrepancies with respect to the prediction of the statistical model have been found for forward emitted $\alpha$-particles; they may be due both to pre-equilibrium emission and to reaction channels (such as Deep Inelastic Collisions, QuasiFission/QuasiFusion) different from the compound nucleus formation.

Published
2016

30. Evidence of Rotational Behaviour in $^{120}$Te Isotope

Author

L. Próchniak, H. J. Wollersheim, T. Abraham, M. Kowalczyk, P. J. Napiorkowski, M. Komorowska, S. Dutt, K. Wrzosek-Lipska, J. Srebrny, M. Matejska-Minda, Anna Stolarz, M. Palacz, Mansi Saxena, M. Kicińska-Habior, R. Kumar, and M. Kisieliński

Subjects
Physics, Isotope, 0103 physical sciences, General Physics and Astronomy, Atomic physics, 010306 general physics, 010303 astronomy & astrophysics, 01 natural sciences
Published
2018

31. Re-measurement of Reduced Transition Probabilities in $^{132}$Ba

Author

H. J. Wollersheim, P. J. Napiorkowski, Mansi Saxena, R. K. Bhowmik, Vivek Mishra, M. Matejska-Minda, I. A. Rizvi, R. Kumar, A. Banerjee, Akhil Jhingan, S. Dutt, Jasmeet Kaur, Anna Stolarz, Avinash Agarwal, C. Joshi, and Arvind Kumar

Subjects
Physics, Condensed matter physics, Transition (fiction), General Physics and Astronomy
Published
2018

32. Giant dipole resonance built on hot rotating nuclei produced during evaporation of light particles from theMo88compound nucleus

Author

F. Gramegna, R. Nicolini, W. Meczynski, B. Szpak, Massimo Chiari, B. Fornal, M. Krzysiek, M. Ciemala, M. Zieblinski, Giovanni Casini, B. Wasilewska, Luca Morelli, M. Matejska-Minda, M. Cinausero, S. Brambilla, D. Montanari, M. Degerlier, A. Chbihi, Alessandra Corsi, Giorgio Baiocco, A. Nannini, S. Carboni, J. Dudek, J. Styczen, L. Bardelli, A. Giaz, Oliver J. Roberts, A. Maj, I. Mazumdar, Gabriele Pasquali, J.P. Wieleczko, N. Blasi, P. Bednarczyk, M. Kmiecik, S. Myalski, A. Bracco, F. C. L. Crespi, Sandro Barlini, N. Dinh Dang, O. Wieland, M. Bruno, F. Camera, G. Benzoni, M. D'Agostino, S. Leoni, Silvia Piantelli, Ch. Schmitt, V. L. Kravchuk, Maurizio Bini, Simone Valdré, T. Marchi, G. Prete, B. Million, and K. Mazurek

Subjects
Physics, Nuclear and High Energy Physics, education.field_of_study, Photon, 010308 nuclear & particles physics, Phonon, Drop (liquid), Nuclear Theory, Population, 01 natural sciences, Spectral line, Dipole, 0103 physical sciences, Thermal, Atomic physics, Nuclear Experiment, 010306 general physics, education, Excitation
Abstract

High-energy giant dipole resonance (GDR) γ rays were measured following the decay of the hot, rotating compound nucleus of 88Mo, produced at excitation energies of 124 and 261 MeV. The reaction 48Ti+ 40Ca at 300 and 600 MeV bombarding energies has been used. The data were analyzed using the statistical modelMonte Carlo code GEMINI++. It allowed extracting the giant dipole resonance parameters by fitting the high-energy γ -ray spectra. The extracted GDR widths were compared with the available data at lower excitation energy and with theoretical predictions based on (i) The Lublin-Strasbourg drop macroscopic model, supplemented with thermal shape fluctuations analysis, and (ii) The phonon damping model. The theoretical predictions were convolutedwith the population matrices of evaporated nuclei from the statistical model GEMINI++. Also a comparison with the results of a phenomenological expression based on the existing systematics, mainly for lower temperature data, is presented and discussed. A possible onset of a saturation of the GDR width was observed around T = 3 MeV.

Published
2015

33. Search for Jacobi Shape Transition in Hot Rotating $^{88}$Mo Nuclei Through Giant Dipole Resonance Decay

Author

M. Ciemała, M. Kmiecik, V. L. Kravchuk, A. Maj, S. Barlini, G. Casini, F. Gramegna, F. Camera, A. Corsi, L. Bardelli, P. Bednarczyk, B. Fornal, M. Matejska Minda, K. Mazurek, W. Męczyński, S. Myalski, J. Styczeń, B. Szpak, M. Ziębliński, M. Cinausero, T. Marchi, V. Rizzi, G. Prete, M. Degerlier, G. Benzoni, N. Blasi, A. Bracco, S. Brambilla, F. Crespi, S. Leoni, B. Million, O. Wieland, D. Montanari, R. Nicolini, A. Giaz, V. Vandone, M. Chiari, A. Nannini, S. Piantelli, A. Chbihi, J. P. Wieleczko, I. Mazumdar, O. Roberts, J. Dudek, BAIOCCO, GIORGIO, BRUNO, MAURO, D'AGOSTINO, MICHELA, MORELLI, LUCA, VANNINI, GIANNI, Grand Accélérateur National d'Ions Lourds (GANIL), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), M. Ciemała, M. Kmiecik, V.L. Kravchuk, A. Maj, S. Barlini, G. Casini, F. Gramegna, F. Camera, A. Corsi, L. Bardelli, P. Bednarczyk, B. Fornal, M. Matejska-Minda, K. Mazurek, W. Męczyński, S. Myalski, J. Styczeń, B. Szpak, M. Ziębliński, M. Cinausero, T. Marchi, V. Rizzi, G. Prete, M. Degerlier, G. Benzoni, N. Blasi, A. Bracco, S. Brambilla, F. Crespi, S. Leoni, B. Million, O. Wieland, D. Montanari, R. Nicolini, A. Giaz, V. Vandone, G. Baiocco, Bruno M, M. D'Agostino, L. Morelli, G. Vannini, M. Chiari, A. Nannini, S. Piantelli, A. Chbihi, J.P. Wieleczko, I. Mazumdar, O. Robert, and J. Dudek

Subjects
GIANT DIPOLE RESONANCE, Physics and Astronomy (all), Nuclear Theory, jacobi shape transition, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], Nuclear Experiment, 21.10.Re, 24.30.Cz
Abstract

International audience; We report on preliminary results from the experiment performed at Legnaro National Laboratories aiming at the investigation of the shape evolution of the Mo-88 nucleus. The GDR spectra obtained for two data sets measured at Ti-48 beam energy of 300 and 450 MeV corresponding to 3 and 3.8 MeV temperatures, respectively, are presented. The low energy component in GDR strength functions, similar to the theoretical predictions of LSD model, possibly indicates the presence of Jacobi shape transition.

Published
2010

34. Lifetime measurements of short lived states in 69As

Author

M. Matejska-Minda, P. Bednarczyk, B. Fornal, M. Ciemała, M. Kmiecik, M. Krzysiek, A. Maj, W. Męczyński, S. Myalski, J. Styczeń, M. Ziębliński, G. [Angelis]de Angelis, T. Huyuk, C. Michelagnoli, E. Sahin, S. Aydin, E. Farnea, R. Menegazzo, F. Recchia, C. Ur, S. Brambilla, S. Leoni, D. Montanari, G. Jaworski, M. Palacz, R. Wadsworth, F. Xu, and W. Liang

Subjects
General Physics and Astronomy
Published
2014

35. Lifetime measurements of high-lying short lived states in [sup 69]As

Author

F. Recchia, M. Matejska-Minda, E. Sahin, Sibel Zehra Aydin, E. Farnea, G. Jaworski, G. de Angelis, C. A. Ur, M. Krzysiek, R. Menegazzo, S. Leoni, M. Kmiecik, M. Ciemala, J. Styczen, S. Brambilla, M. Zieblinski, P. Bednarczyk, R. Wadsworth, W. Meczynski, B. Fornal, A. Maj, M. Palacz, D. Montanari, C. Michelagnoli, S. Myalski, and T. Hüyük

Subjects
Physics, Mass number, fusion-evaporation reaction, Isotope, Attenuation, technology, industry, and agriculture, Nuclear structure, nuclear lifetimes, Deformation (meteorology), γ-ray spectroscopy, nuclear structure, Physics and Astronomy (all), symbols.namesake, Amplitude, Excited state, symbols, Atomic physics, Doppler effect
Abstract

Lifetimes of high-spin states in 69As have been measured using Doppler shift attenuation technique with the GASP and RFD setup. The determined transition probabilities indicate large deformation associated with some rotational bands in this nucleus.

Published
2012

36. Yrast structure ofZr97andβdecay of the27/2−high-spin isomer inY97

Author

B. Fornal, T. Pawłat, S. Zhu, R. Broda, P. F. Mantica, W. Królas, J. Wrzesiński, R. V. F. Janssens, T. Lauritsen, K. Mazurek, M. P. Carpenter, and M. Matejska-Minda

Subjects
Physics, Nuclear and High Energy Physics, Angular momentum, Fission, Yrast, Nuclear Theory, Structure (category theory), Level structure, Atomic physics, Nuclear Experiment, Spin (physics), Energy (signal processing), Excitation
Abstract

The yrast structure of the neutron-rich nucleus $^{97}\mathrm{Zr}$ has been studied using fission of targetlike products in the reaction of a $^{48}\mathrm{Ca}$ beam on a thick $^{238}\mathrm{U}$ target. The level scheme, known from previous studies up to an excitation energy and spin-parity of approximately 4619 keV and $23/{2}^{\ensuremath{-}}$, has been extended by about 3 MeV and a few units of angular momentum. Two states fed in the $\ensuremath{\beta}$ decay of the $27/{2}^{\ensuremath{-}}$ high-spin isomer in $^{97}\mathrm{Y}$ were identified at 5570 and 5606 keV. The located level structure can be discussed in terms of shell-model configurations.

Published
2009

37. Measurement of light charged particles in the decay channels of medium-mass excited compound nuclei

Author

Maurizio Bini, M. D Agostino, Giovanni Casini, G. Vannini, S. Leoni, S. Brambilla, J. Styczen, S. Myalski, B. Million, P. Bednarczyk, F. Camera, Giacomo Poggi, A. Maj, M. Cinausero, M. Matejska-Minda, Giorgio Baiocco, A. Bracco, V. L. Kravchuk, G. Benzoni, A. Nannini, L. Bardelli, R. Nicolini, M. Zieblinski, M. Kmiecik, W. Meczynski, Simone Valdré, Luca Morelli, N. Blasi, F. C. L. Crespi, Sandro Barlini, F. Gramegna, D. Montanari, T. Marchi, Andrea Corsi, M. Bruno, B. Fornal, Gabriele Pasquali, S. Carboni, J. Dudek, Silvia Piantelli, O. Wieland, M. Degerlier, M. Ciemala, and K. Mazurek

Subjects
Physics, QC1-999, Monte Carlo method, Evaporation, Gamma ray, FOS: Physical sciences, Charged particle, Coincidence, Spectral line, Excited state, Nuclear Experiment (nucl-ex), Atomic physics, Nuclear Experiment, Spin (physics)
Abstract

The 48Ti on 40Ca reactions have been studied at 300 and 600 MeV focusing on the fusion-evaporation (FE) and fusion-fission (FF) exit channels. Energy spectra and multiplicities of the emitted light charged particles have been compared to Monte Carlo simulations based on the statistical model. Indeed, in this mass region (A about 100) models predict that shape transitions can occur at high spin values and relatively scarce data exist in the literature about coincidence measurements between evaporation residues and light charged particles. Signals of shape transitions can be found in the variations of the lineshape of high energy gamma rays emitted from the de-excitation of GDR states gated on different region of angular momenta. For this purpose it is important to keep under control the FE and FF processes, to regulate the statistical model parameters and to control the onset of possible preequilibrium emissions from 300 to 600 MeV bombarding energy., Comment: 4 pages, 3 figures, Contribution to conference proceedings of the 25th International Nuclear Physics Conference (INPC 2013) Journal-ref: 25th International Nuclear Physics Conference (INPC 2013), Firenze : Italy (2013)

Published
2014

38. Lifetime Measurements of Short Lived States in 66Ge

Author

M. Kmiecik, R. Wadsworth, D. Montanari, F. Recchia, A. Maj, G. de Angelis, S. Myalski, M. Krzysiek, M. Ciemala, G. Jaworski, R. Menegazzo, E. Farnea, M. Zieblinski, S. Leoni, P. Bednarczyk, J. Styczen, M. Palacz, Furong Xu, M. Matejska-Minda, Sibel Zehra Aydin, S. Brambilla, W. Meczynski, T. Hüyük, C. Michelagnoli, C. A. Ur, E. Sahin, W. Y. Liang, and B. Fornal

Subjects
Nuclear physics, Physics, Isotope, General Physics and Astronomy, Nucleon
Abstract

Sr isotopes. The coexistence of the prolateandoblateshapesisatypicalphenomenoninthenucleiwithmassAˇ70.Here, the number of active nucleons is large enough to create a coherentmotion but, on the other hand, this collectivity can still be tracked to thesingleparticledegreesoffreedom. Excitedstateslifetimemeasurementspro-videinformationonthenucleardeformationandthepropertiesofcollectivestructures,varietyofwhichoccursinthisregionofthenuclearchart. Themeasurements,however,arequitedifficulttoperformandrelevantdataonelectromagneticpropertiesofsuchbandsathighspinarestillunavailable.2. Experimental setupIn the present experiment

Published
2013

39. [Untitled]

Author

M. Kmiecik, Sandro Barlini, V. Rizzi, P. Bednarczyk, M. Zieblinski, J.P. Wieleczko, O. Wieland, A. Bracco, Giovanni Casini, G. Vannini, M. Bruno, M. Cinausero, T. Marchi, B. Fornal, M. Matejska-Minda, A. Chbihi, Alessandra Corsi, M. D'Agostino, F. Gramegna, G. Prete, L. Bardelli, Oliver J. Roberts, A. Nannini, M. Ciemala, V. L. Kravchuk, K. Mazurek, B. Szpak, S. Brambilla, I. Mazumdar, J. Styczen, B. Million, W. Meczynski, A. Maj, D. Montanari, M. Degerlier, G. Benzoni, R. Nicolini, Massimo Chiari, J. Dudek, F. Camera, Agnese Giaz, V. Vandone, S. Leoni, N. Blasi, Giorgio Baiocco, Luca Morelli, S. Myalski, F. C. L. Crespi, and Silvia Piantelli

Subjects
Physics, Dipole, General Physics and Astronomy, Resonance, Atomic physics
Published
2011

41. Deformation in $^{120}$Te Described Experimentally by Quadrupole Invariants

Author

J. Srebrny, M. Kicińska-Habior, R. Kumar, M. Matejska-Minda, H. J. Wollersheim, M. Palacz, M. Komorowska, P. J. Napiorkowski, L. Próchniak, W. Piątek, T. Abraham, M. Kowalczyk, Anna Stolarz, S. Dutt, K. Wrzosek-Lipska, A. Tucholski, M. Kisieliński, and Mansi Saxena

Subjects
Physics, Classical mechanics, 010308 nuclear & particles physics, 0103 physical sciences, Quadrupole, General Physics and Astronomy, Deformation (meteorology), 01 natural sciences
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