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1. 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

2. The (6+) isomer in 102Sn revisited: Neutron and proton effective charges close to the double shell closure

Author

Shunji Nishimura, Yu. A. Litvinov, T. Davinson, H. J. Wollersheim, F. Nebel, K. Straub, T. Habermann, S. Schwertel, T. Faestermann, Igor T. Čeliković, P. Boutachkov, F. Farinon, C. Hinke, P. Strmeň, Hans Geissel, H. Schaffner, M. Karny, F. Nowacki, M. Lewitowicz, H. Grawe, N. Kurz, M. Górska, P. A. Söderström, G. F. Farrelly, Andreas Stolz, Zs. Podolyák, A. Atac, J. Grȩbosz, A. Prochazka, Robert Hoischen, I. Kojouharov, R. Janik, C. Scheidenberger, P. J. Woods, P. H. Regan, S. J. Steer, S. Pietri, S. Myalski, N. Braun, Roman Gernhäuser, M. Böhmer, A. Blazhev, N. Al-Dahan, Johan Nyberg, R. Krücken, A. Kaşkaş, J. Gerl, N. Alkhomashi, L. Maier, N. Goel, C. Nociforo, A. Gottardo, Zhi Liu, Catherine Rigollet, C. Domingo-Pardo, Helmut Weick, P. Doornenbal, Iris Dillmann, A. Parikh, K. Steiger, Th. Kröll, CoSee GmbH [Darmstadt], Technische Universität Munchen - Université Technique de Munich [Munich, Allemagne] (TUM), 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), SUPA School of Physics and Astronomy [Edinburgh], University of Edinburgh, Polish Academy of Sciences (PAN), Department of Physics, University of Surrey, University of Surrey (UNIS), Department of Physics, Faculty of Science, Middle East Technical University, Ankara, Turkey, Department of Fusion Plasma Physics [Stockholm] (KTH), Royal Institute of Technology [Stockholm] (KTH ), University of Cologne, Vinča Institute of Nuclear Sciences, University of Belgrade [Belgrade], 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), Comenius University in Bratislava, University of Warsaw (UW), Faculty of Science Astronomy, Ankara University, Tandogan Ankara, TR-06100 Turkey, obasturk@ankara.edu.tr, Polska Akademia Nauk = Polish Academy of Sciences (PAN), RIKEN Nishina Center for Accelerator-Based Science [Wako] (RIKEN RNC), RIKEN - Institute of Physical and Chemical Research [Japon] (RIKEN), Uppsala Universitet [Uppsala], Kernfysisch Versneller Instituut (KVI), University of Groningen [Groningen], Uppsala University, Michigan State University [East Lansing], Michigan State University System, RISING, 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)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Blank, B., and Technische Universität München [München] (TUM)

Subjects
Sn, Nuclear and High Energy Physics, Proton, QC1-999, SHELL model, Closure (topology), Shell (structure), [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], Space (mathematics), 01 natural sciences, Subatomär fysik, Shell model, Fragmentation (mass spectrometry), Subatomic Physics, 0103 physical sciences, ddc:530, Neutron, 010306 general physics, Effective charges near Sn, Physics, 010308 nuclear & particles physics, Effective charges near, Polarization (waves), ddc, Effective charges near Sn-100, Electromagnetic transitions, Effective charges near 100Sn, Atomic physics
Abstract

Physics letters / B 820, 136591 (2021). doi:10.1016/j.physletb.2021.136591, Published by North-Holland Publ., Amsterdam

Published
2021

3. Proton–hole excitation in the closed shell nucleus 205Au

Author

D. Mücher, Zhi Liu, Enrique Casarejos, I. Kojouharov, P. Doornenbal, J. J. Valiente-Dobón, C. Mihai, S. Pietri, Robert Hoischen, H. Grawe, J. Grȩbosz, W. Gelletly, I. J. Cullen, K. H. Maier, A. M. Denis Bacelar, A. Algora, H. J. Wollersheim, Atsushi Tamii, M. Górska, Stanislav Tashenov, N. Alkhomashi, Hans Geissel, S. J. Steer, G. Benzoni, Philip M Walker, H. Schaffner, Rajesh Kumar, A. Blazhev, G. F. Farrelly, A. B. Garnsworthy, Zs. Podolyák, J. Gerl, L. Caceres, P. J. Woods, J. Benlliure, Alison Bruce, P. Boutachkov, S. Lalkovski, P. H. Regan, M. E. Estevez, Berta Rubio, F. Molina, and Y. Fujita

Subjects
Physics, Nuclear and High Energy Physics, Particle decay, Proton, Neutron, Electron, Atomic physics, Nuclear Experiment, Spectroscopy, Beta decay, Open shell, Charged particle
Abstract

The neutron-rich N = 126 nucleus Au-205 has been populated following the relativistic energy projectile fragmentation of E/A = 1 GeV Pb-208, and studied via charged-particle decay spectroscopy. An internal decay with a transition energy of 907(5) keV and a half-life of T-1/2 = 6(2) s has been identified through the observation of the corresponding K and L internal conversion electron lines. The 907 keV energy level corresponds to the pi h(11/2)(-1) proton-hole state and decays both internally into the pi d(3/2)(-1) ground-state and via beta decay into Hg-205. The obtained data provides information on the evolution of single-proton hole energies which are vital inputs of shell model descriptions for nuclei around the Pb-208(82)126 doubly magic core. (C) 2009 Elsevier B.V. All rights reserved.

Published
2009

4. The T=2 mirrors 36Ca and 36S: A test for isospin symmetry of shell gaps at the driplines

Author

F. C. L. Crespi, Zs. Podolyák, S. Chmel, T. Beck, L. Caceres, A. Banu, Helmut Weick, S.K. Mandal, J. Grȩbosz, F. Becker, F. Camera, J. Gerl, Norio Saito, P. Reiter, P. Bednarczyk, Benedicte Million, H. Schaffner, H. Grawe, N. Kurz, H. J. Wollersheim, H. Hübel, T. Striepling, A. Maj, Yutaka Utsuno, O. Kavatsyuk, I. Kojouharov, M. Kmiecik, M. Seidlitz, A. Richard, J. Walker, A. Al-Khatib, M. Górska, W. Meczynski, O. Wieland, T. Saito, P. Doornenbal, M. Kavatsyuk, R. Lozeva, Hans Geissel, A. Bracco, G. Benzoni, A. Bürger, Takaharu Otsuka, M. Winkler, and N. Warr

Subjects
Physics, Nuclear physics, Nuclear and High Energy Physics, Isotope, Fragmentation (mass spectrometry), Excited state, Isospin, SHELL model, Coulomb, Neutron, Atomic physics, Spectroscopy
Abstract

The first excited 2+2+ state of 36Ca has been identified by its γ -decay, exploiting the two-step fragmentation technique at the FRS-RISING setup at GSI. This is the heaviest Tz=−2Tz=−2 nucleus in the Segré chart in which a γ-decay of an excited state has been observed. A stable beam of 40Ca at View the MathML source420AMeV impinged on a primary 9Be target. Out of the secondary beam of fragmentation products, 37Ca was separated by the FRS and struck on a second 9Be target at the final focus of the FRS. The energy for the View the MathML source21+ decay of 36Ca was determined to be 3015(16) keV, which is 276 keV lower than in its T=2T=2 mirror 36S. This mirror energy difference (MED) is discussed in the framework of shell model calculations using a 16O core, the sd shell isospin symmetric interaction USD and experimental single-particle energies from 17O and 17F. The results show that the MED within the sd shell provide a sensitive test for the evolution of the N , Z=14,16Z=14,16 subshell gaps towards the driplines. Especially the N , Z=16Z=16 gap is determined by Thomas–Ehrman shift in the A=17A=17, T=1/2T=1/2 isospin doublet, while Coulomb effects are found to have marginal influence. ispartof: Physics Letters B vol:647 issue:4 pages:237-242 status: published

Published
2007

5. Tz=−1→0βdecays ofNi54,Fe50,Cr46, andTi42and comparison with mirror(He3,t)measurements

Author

D. Pauwels, J. L. Tain, J. J. Valiente-Dobón, Hiroshi Matsubara, P. Doornenbal, A. Algora, S. Pietri, S. Verma, A. I. Morales, D. Pérez-Loureiro, M. Gascon, F. Molina, W. Gelletly, J. Grȩbosz, H. J. Wollersheim, Robert Hoischen, Atsushi Tamii, Rajesh Kumar, Yoshitaka Fujita, Stanislav Tashenov, E. Ganioglu, P. Boutachkov, H. Schaffner, L. Amon Susam, Y. Oktem, A. Gadea, C. Domingo-Pardo, B. Rubio, S. J. Steer, W. Prokopowicz, Hans Geissel, Enrique Casarejos, I. Kojouharov, L. Caceres, J. Agramunt, J. Benlliure, Dirk Rudolph, R. B. Cakirli, N. Kurz, M. Górska, Zs. Podolyák, and J. Gerl

Subjects
Physics, Nuclear physics, Nuclear and High Energy Physics, Fragmentation (mass spectrometry), High resolution, Gamma spectroscopy, Sensitivity limit, Atomic physics, Beta decay, Excitation, Charge exchange, Fermi Gamma-ray Space Telescope
Abstract

We have studied the β decay of the Tz=−1, f7/2 shell nuclei Ni54, Fe50, Cr46, and Ti42 produced in fragmentation reactions. The proton separation energies in the daughter Tz=0 nuclei are relatively large (≈4–5 MeV) so studies of the γ rays are essential. The experiments were performed at GSI as part of the Stopped-beam campaign with the RISING setup consisting of 15 Euroball Cluster Ge detectors. From the newly obtained high precision β-decay half-lives, excitation energies, and β branching ratios, we were able to extract Fermi and Gamow-Teller transition strengths in these β decays. With these improved results it was possible to compare in detail the Gamow-Teller (GT) transition strengths observed in beta decay including a sensitivity limit with the strengths of the Tz=+1 to Tz=0 transitions derived from high resolution (3He,t) reactions on the mirror target nuclei at RCNP, Osaka. The accumulated B(GT) strength obtained from both experiments looks very similar although the charge exchange reaction provides information on a broader energy range. Using the “merged analysis” one can obtain a full picture of the B(GT) over the full Qβ range. Looking at the individual transitions some differences are observed, especially for the weak transitions. Their possible origins are discussed. (Less)

Published
2015

6. Isospin symmetry in thesdshell: Transition strengths in the neutron-deficientsdshell nucleusAr33

Author

E. Merchan, P. Doornenbal, Oliver Wieland, P. Reiter, S. Pietri, A. Algora, H. J. Wollersheim, T. Habermann, Pavel Golubev, B. Siebeck, H. Grawe, L. Scruton, Zs. Podolyák, J. Gerl, Jan Taprogge, J. Grȩbosz, F. C. L. Crespi, A. I. Morales, Benedicte Million, N. S. Bondili, Dirk Rudolph, M. Hackstein, Douglas D. DiJulio, M. A. Bentley, Norbert Pietralla, G. Guastalla, Joakim Cederkäll, D. Ralet, N. Braun, Jnaneswari Gellanki, M. Bowry, K. Geibel, Robert Hoischen, P. Boutachkov, A. Blazhev, A. Bracco, Anna Wendt, N. Warr, D. Bloor, M. Reese, K. Moschner, F. Camera, A. Jungclaus, and F. Ameil

Subjects
Nuclear reaction, Physics, Nuclear and High Energy Physics, Ion beam, Nuclear Theory, Coulomb excitation, Ion, Nuclear physics, Excited state, Gamma spectroscopy, Neutron, Atomic physics, Nuclear Experiment, Nucleon
Abstract

Reduced transition strengths of the deexciting transitions from the first two excited states in 33Ar were measured in a relativistic Coulomb excitation experiment at the GSI Helmholtz center. The radioactive ion beam was produced by fragmentation of a primary 36Ar beam on a 9Be target followed by the selection of the reaction product of interest via the GSI Fragment Separator. The 33Ar beam hit a secondary 197Au target with an energy of approximately 145 MeV/nucleon. An array of high-purity germanium cluster detectors and large-volume BaF2 scintillator detectors were employed for γ -ray spectroscopy at the secondary target position. The Lund-York-Cologne Calorimeter was used to track the outgoing ions and to identify the nuclear reaction channels. For the two lowest energy excited states of 33Ar the reduced transition strengths have been determined. With these first results the Tz = −3/2 nucleus 33Ar is now, together with 21Na (Tz = −1/2), the only neutron-deficient odd-A sd shell nucleus in which experimental transition strengths are available. The experimental values are compared to results of shell-model calculations which describe simultaneously mirror-energy differences and transition-strength values of mirror pairs in the sd shell in a consistent way

Published
2014

7. Hindered Gamow-Teller Decay to the Odd-OddN=ZGa62: Absence of Proton-NeutronT=0Condensate inA=62

Author

J. J. Valiente-Dobón, Pedro Sarriguren, Robert Page, D. Bazzacco, B. Rubio, Dirk Rudolph, A. N. Steer, N. Kurz, S. M. Lenzi, S. Verma, P. Doornenbal, M. Górska, L. Caceres, Sami Rinta-Antila, G. de Angelis, N. Alkhomashi, L. Amon Susam, Maria Doncel, O. Wieland, Zs. Dombrádi, R. Wadsworth, E. Ganioǧlu, J. Agramunt, R. Orlandi, F. Molina, W. Gelletly, H. J. Wollersheim, J. Grȩbosz, E. Farnea, J. Benlliure, P. Boutachkov, Alejandro Algora, R. B. Cakirli, Zs. Podolyák, B. S. Nara Singh, A. I. Morales, A. Gottardo, Begoña Quintana, S. Pietri, P. H. Regan, A. Gadea, D. Mengoni, T. Hüyük, Alfredo Poves, E. Grodner, Dolores Pérez, C. Domingo-Pardo, F. C. L. Crespi, A. Bracco, G. Benzoni, Y. Oktem, J. Gerl, and S. Leoni

Subjects
Physics, Proton, Double beta decay, Excited state, Nuclear Theory, Quasiparticle, General Physics and Astronomy, Neutron, Atomic physics, Nuclear Experiment, Random phase approximation, Ground state, Spin (physics)
Abstract

Search for a new kind of superfluidity built on collective proton-neutron pairs with aligned spin is performed studying the Gamow-Teller decay of the T=1, Jπ=0+ ground state of Ge62 into excited states of the odd-odd N=Z nucleus Ga62. The experiment is performed at GSI Helmholtzzentrum fur Schwerionenforschung with the Ge62 ions selected by the fragment separator and implanted in a stack of Si-strip detectors, surrounded by the RISING Ge array. A half-life of T1/2=82.9(14) ms is measured for the Ge62 ground state. Six excited states of Ga62, populated below 2.5 MeV through Gamow-Teller transitions, are identified. Individual Gamow-Teller transition strengths agree well with theoretical predictions of the interacting shell model and the quasiparticle random phase approximation. The absence of any sizable low-lying Gamow-Teller strength in the reported beta-decay experiment supports the hypothesis of a negligible role of coherent T=0 proton-neutron correlations in Ga62. (Less)

Published
2014

8. Analysis and results of the 104Sn Coulomb excitation experiment

Author

K. Moschner, C. Domingo Pardo, F Schirru, Johan Nyberg, F. Nowacki, I. Kojouharov, Rajesh Kumar, H. J. Wollersheim, P. Reiter, F. Ameil, Douglas D. DiJulio, E. Merchan, J. Jolie, Zs. Podolyák, J. Gerl, M. A. Bentley, S. Brambilla, P. Boutachkov, A. Obertelli, J. S. Winfield, T Swaleh, A. Jungclaus, Kjell Jansson, F. Farinon, M. Pfützner, F. Camera, D. Bloor, R. Wadsworth, Joakim Cederkäll, R. Knoebel, Dirk Rudolph, S. Pietri, Robert Hoischen, A Prochazka, A. Atac, C. Nociforo, T. Habermann, N. Braun, Anna Wendt, G. Guastalla, J. Grȩbosz, Oliver Wieland, A. Algora, H. Grawe, N. Kurz, M. Górska, N. Lalović, D. Ralet, H. Schaffner, A. Blazhev, N. Goel, N. Warr, F. Naqvi, B. S. Nara Singh, Norbert Pietralla, Alfredo Estrade, J. Kurcewicz, T. Arici, Jan Taprogge, L Scruton, Helmut Weick, Pavel Golubev, SCOAP, and Ministerio de Ciencia e Innovación (España)

Subjects
Physics, History, Quadrupole, Coulomb excitation, Atomic physics, Energy (signal processing), Spectral line, Computer Science Applications, Education
Abstract

G. Guastalla, et al. XX International School on Nuclear Physics, Neutron Physics and Applications (Varna 2013); 5 pags.; 1 fig., The analysis of the Coulomb excitation experiment conducted on 104Sn required a strict selection of the data in order to reduce the large background present in the γ-ray energy spectra and identify the γ-ray peak corresponding to the Coulomb excitation events. As a result the B(E2; 0+ →2+) value could be extracted, which established the downward trend towards 100Sn and therefore the robustness of the N=Z=50 core against quadrupole excitations. Published under licence by IOP Publishing Ltd, A. J. would like to thank the Spanish Ministerio de Ciencia e Innovacion for financial support under Contract No. FPA2011-29854- C04

Published
2014

9. Coulomb Excitation ofSn104and the Strength of theSn100Shell Closure

Author

M. Górska, K. Moschner, H. J. Wollersheim, P. Reiter, Johan Nyberg, Alfredo Estrade, Robert Hoischen, B. S. Nara Singh, L. Scruton, F Schirru, A. Atac, Zs. Podolyák, J. Gerl, F. Nowacki, F. Ameil, Norbert Pietralla, Kjell Jansson, S. Pietri, F. Farinon, T. Habermann, Dirk Rudolph, C. Nociforo, Zs. Dombrádi, Anna Wendt, T. Arici, M. Pfützner, C. Domingo Pardo, Jan Taprogge, R. Wadsworth, N. Braun, Dóra Sohler, H. Grawe, D. Ralet, S. Brambilla, H. Schaffner, A. Blazhev, Oliver Wieland, E. Merchan, N. Lalović, N. Goel, N. Warr, Helmut Weick, J. S. Winfield, F. Camera, T. Swaleh, N. Kurz, G. Guastalla, A. Obertelli, I. Kojouharov, K. Sieja, Pavel Golubev, R. Knoebel, M. A. Bentley, P. Boutachkov, Alejandro Algora, Joakim Cederkäll, Rajesh Kumar, A. Prochazka, Zs. Vajta, J Kurcewicz, J. Grȩbosz, Douglas D. DiJulio, F. Naqvi, D. Bloor, A. Jungclaus, and J. Jolie

Subjects
Physics, Isotope, 010308 nuclear & particles physics, Nuclear Theory, SHELL model, Nuclear structure, General Physics and Astronomy, Coulomb excitation, 7. Clean energy, 01 natural sciences, Key point, medicine.anatomical_structure, 13. Climate action, 0103 physical sciences, medicine, Atomic physics, Nuclear Experiment, 010306 general physics, Ground state, Nucleus, Excitation
Abstract

A measurement of the reduced transition probability for the excitation of the ground state to the first 2+ state in 104Sn has been performed using relativistic Coulomb excitation at GSI. 104Sn is the lightest isotope in the Sn chain for which this quantity has been measured. The result is a key point in the discussion of the evolution of nuclear structure in the proximity of the doubly magic nucleus 100Sn. The value B(E2; 0+ → 2+) = 0.10(4) e2b2 is significantly lower than earlier results for 106Sn and heavier isotopes. The result is well reproduced by shell model predictions and therefore indicates a robust N = Z = 50 shell closure.

Published
2013

10. Exotic nuclear studies around and below A = 100

Author

B. S. Nara Singh, R. Wadsworth, P. Boutachkov, A. Blazhev, Z. Liu, H. Grawe, T. S. Brock, N. Braun, M. Go, S. Pietri, D. Rudolph, C. Domingo-Pardo, S. J. Steer, A. Atac, L. Bettermann, L. Cáceres, K. Eppinger, T. Engert, T. Faestermann, F. Farinon, F. Finke, K. Geibel, J. Gerl, R. Gernhäuser, N. Goel, A. Gottardo, J. Grȩbosz, C. Hinke, R. Hoischen, G. llie, H. Iwasaki, J. Jolie, A. Kaşkaş, I. Kojouharov, R. Krücken, N. Kurz, E. Merchánt, C. Nociforo, J. Nyberg, M. Pfützner, A. Prochazka, Zs. Podolyák, P. H Regan, P. Reiter, S. Rinta-Antila, C. Scholl, H. Schaffner, P.-A. Söderström, N. Warr, H. Weick, H.-J. Wollersheim, P. J. Woods, F. Nowacki, K. Sieja, and Bertram Blank

Subjects
Nuclear physics, Physics, Nuclear Theory, SHELL model, Nuclear structure, Gamma spectroscopy, Context (language use), Nuclear Experiment, Spin (physics)
Abstract

A RISING experiment with an aim to study exotic Cd nuclei was carried out at GSI‐FRS facility. Some preliminary results from this experiment are presented here. In particular, the β decay of 96Cd to 96Ag revealed the existence of a high spin isomer predicted a few decades ago. In this context, the structures of both these nuclei are discussed. Shell model calculations using the Gross‐Frenkel interaction are used to interpret the results.

Published
2011

11. ISOMER SPECTROSCOPY NEAR 132<font>Sn</font> — FIRST OBSERVATION OF EXCITED STATES IN 130<font>Cd</font>

Author

M. PFÜTZNER, A. JUNGCLAUS, M. GÓRSKA, L. CÁCERES, S. PIETRI, E. WERNER-MALENTO, H. GRAWE, K. LANGANKE, G. MARTÍNEZ-PINEDO, F. NOWACKI, A. POVES, J.J. CUENCA-GARCÍA, D. RUDOLPH, Z. PODOLYAK, P.H. REGAN, P. DETISTOV, S. LALKOVSKI, V. MODAMIO, J. WALKER, P. BEDNARCZYK, P. DOORNENBAL, H. GEISSEL, J. GERL, J. GRȨBOSZ, I. KOJOUHAROV, N. KURZ, W. PROKOPOWICZ, H. SCHAFFNER, H.J. WOLLERSHEIM, and null the RISING collaboration

Subjects
Materials science, Excited state, SHELL model, Atomic physics, Spectroscopy
Published
2008

12. ISOSPIN SYMMETRY AND PROTON DECAY: IDENTIFICATION OF THE 10+ ISOMER IN 54<font>Ni</font>

Author

Margareta Hellström, H. J. Wollersheim, A. Blazhev, M. A. Bentley, N. Kurz, M. Górska, Emma Johansson, H. Schaffner, Jason I. Brown, J. Grȩbosz, A. Jungclaus, P. Doornenbal, S. Pietri, Dirk Rudolph, F. Becker, P. Bednarczyk, L. Atanasova, L.-L. Andersson, Zs. Podolyák, I. Kojouharov, P. H. Regan, D. L. Balabanski, S. J. Steer, W. Prokopowicz, Claes Fahlander, L. Caceres, J. Gerl, A. B. Garnsworthy, Robert Hoischen, and C. Brandau

Subjects
Physics, Nuclear physics, Identification (information), Particle physics, Proton decay, Isospin, Symmetry (physics)
Published
2008

13. HEAVY NEUTRON-RICH NUCLEI PRODUCED IN THE FRAGMENTATION OF A 208<font>Pb</font> BEAM

Author

P. H. Regan, H. J. Wollersheim, Tomoki Saito, E. Warner-Malento, H. Grawe, N. Kurz, M. Górska, G. F. Farrelly, F. Becker, T. Shizuma, M. Pfützner, P. Bednarczyk, A. B. Garnsworthy, Fernando Montes, T. Kurtukian-Nieto, H. Schaffner, A. Kelic, G. Benzoni, S. J. Steer, Robert Hoischen, R. Kumar, W. Prokopowicz, Hans Geissel, S. Pietri, P. Doornenbal, J. Gerl, Andreas Martin Heinz, S. Tachenov, H. K. Maier, J. Grȩbosz, L. Caceres, A. Jungclaus, Zs. Podolyák, I. Kojouharov, Dirk Rudolph, B. A. Brown, and J. Benlliure

Subjects
Nuclear physics, Materials science, Fragmentation (mass spectrometry), Neutron, Atomic physics
Published
2008

14. COLLECTIVITY IN LIGHT NUCLEI AND THE GDR

Author

A. MAJ, J. STYCZEŃ, M. KMIECIK, P. BEDNARCZYK, M. BREKIESZ, J. GRȨBOSZ, M. LACH, W. MȨCZYŃSKI, M. ZIȨBLIŃSKI, K. ZUBER, A. BRACCO, F. CAMERA, G. BENZONI, S. LEONI, B. MILLION, and O. WIELAND

Subjects
Nuclear physics, Physics, Light nucleus, Low energy, Strength function, Thermal, Liquid drop, Atomic physics, Line (formation)
Abstract

The results are presented from the experiments using the EUROBALL and RFD/HECTOR arrays, concerning various aspects of collectivity in light nuclei. A superdeformed band in 42 Ca was found. A comparison of the GDR line shape data with the predictions of the thermal shape uctuation model, based on the most recent rotating liquid drop LSD calculations, shows evidence for a Jacobi shape transition in hot, rapidly rotating 46 Ti and strong Coriolis eects in the GDR strength function. The preferential feeding of the SD band in 42 Ca by the GDR low energy component was observed

Published
2005

15. Study of the soft dipole modes in 140Ce via inelastic scattering of 17O

Author

S. Brambilla, Herbert Hess, M. Ciemala, B. Million, S. Leoni, C. Boiano, S. M. Lenzi, E. Farnea, F. Recchia, Sunniva Siem, S. Bottoni, P. Bednarczyk, G. de Angelis, M. Kmiecik, M Krzysiek, B. Birkenbach, Stefano Riboldi, N. Blasi, Diego Barrientos, F. Camera, A. C. Larsen, D. Mengoni, O. Wieland, Andreas Görgen, A. Bracco, V. Vandone, T. Hüyük, J. Grȩbosz, W. Mȩczyński, A. Giaz, A. Maj, Luna Pellegri, G. Benzoni, A. Gottardo, C. A. Ur, Magne Guttormsen, R. Nicolini, Alexander Burger, J. J. Valiente-Dobón, P. Reiter, F. C. L. Crespi, S. Lunardi, A. I. Morales, C. Michelagnoli, T Steinbach, Andreas Wiens, A. Gadea, K Mazurek, D. R. Napoli, K. Geibel, B. Fornal, D. Bazzacco, and M. Ziȩbliński

Subjects
Nuclear reaction, Physics, Isovector, Scattering, Isoscalar, Nuclear Theory, Inelastic scattering, Condensed Matter Physics, Resonance (particle physics), Atomic and Molecular Physics, and Optics, Dipole, Giant resonance, Atomic physics, Mathematical Physics
Abstract

The main aim of this study was a deeper understanding of the nuclear structure properties of the soft dipole modes in 140 Ce, excited via inelastic scattering of weakly bound 17 O projectiles. An important aim was to investigate the ‘splitting’ of the PDR into two parts: a low-energy isoscalar component dominated by neutron-skin oscillations and a higher-energy component lying on the tail of the giant dipole resonance of a rather isovector character. This was already observed for this nucleus, investigated in (α, α′) and (γ, γ′) experiments. The experiment was performed at Laboratori Nazionali di Legnaro, Italy. Inelastic scattering of 17 O ion beam at − 2 0M eV A 1 was

Published
2014

16. First observation of excited states in [sup 199]At with the recoil filter detector

Author

D.J. Middleton, W. Mȩczyński, P. Bednarczyk, K. M. Spohr, M. Ziȩbliński, N. Schulz, A. Lopez-Martens, F. Hannachi, J.C. Merdinger, Peter M. Jones, M. Palacz, M. Wolińska, R. Chapman, M. Lach, J. Styczen, J. Grȩbosz, K. H. Maier, S. Courtin, M. B. Smith, and J. Kownacki

Subjects
Physics, Nuclear physics, Microsecond, Angular momentum, Recoil, Excited state, Nuclear structure, Gamma ray, Electron, Atomic physics, Nuclear Experiment, Radioactive decay
Abstract

We have deduced for the first time a level scheme for the {sup 199}At nucleus. The angular distribution data and the conversion electron information have allowed for multipolarity assignments and spin suggestions to be made. The current data and the level systematics of odd At isotopes suggest that the first excited state should be isomeric with a lifetime of the order of a microsecond.

Published
1999

17. High-energy excited states in98Cd

Author

A. Atac, S. J. Steer, I. Kojouharov, Dirk Rudolph, J. Grȩbosz, H. J. Wollersheim, L. Caceres, Johan Nyberg, C. Domingo-Pardo, Helmut Weick, C. Hinke, Tina Penick Brock, Frédéric Nowacki, T. Engert, P. Reiter, H. Iwasaki, R. Wadsworth, K. Eppinger, P. J. Woods, Zs. Podolyák, J. Gerl, A. Prochazka, M. Górska, T. Faestermann, P. A. Söderström, P. H. Regan, S. Pietri, E. Merchan, N. Braun, C. Nociforo, A. Blazhev, J. Jolie, B. S. Nara Singh, F. Finke, H. Grawe, N. Kurz, G. Ilie, H. Schaffner, F. Farinon, P. Boutachkov, L. Bettermann, N. Goel, K. Geibel, Zh Liu, Sami Rinta-Antila, M. Pfützner, N. Warr, Robert Hoischen, A. Gottardo, R. Krücken, and C. Scholl

Subjects
Physics, Nuclear physics, History, High energy, Excited state, Physics::Atomic and Molecular Clusters, Nuclear structure, Atomic physics, Computer Science Applications, Education
Abstract

In 98Cd a new high-energy isomeric γ-ray transition was identified, which confirms previous spin-parity assignments and enables for the first time the measurement of the E2 and E4 strength for the two decay branches of the isomer. Preliminary results on the 98Cd high-excitation level scheme are presented. A comparison to shell-model calculations as well as implications for the nuclear structure around 100Sn are discussed.

Published
2010

18. Erratum to: 'Neutron–proton pairing competition in N=Z nuclei: Metastable state decays in the proton dripline nuclei 8241Nb and 8643Tc' [Phys. Lett. B 660 (2008) 326]

Author

H. J. Wollersheim, F. Camera, H. Schaffner, T. Saito, J. Gerl, S. Pietri, M. Górska, H. Grawe, N. Kurz, G. Benzoni, M. Kmiecik, S. Schwertel, I. Kojouharov, O. Wieland, Zs. Podolyák, Zs. Dombrádi, F. Becker, Zhi Liu, Andreas Martin Heinz, T. Kurtukian-Nieto, F. G. Kondev, B. Blank, E. Werner-Malento, A. Jungclaus, W. N. Catford, P. Bednarczyk, S. J. Steer, Hans Geissel, T. Shizuma, J. Grȩbosz, W. Prokopowicz, Robert Hoischen, A. B. Garnsworthy, M. Pfützner, Dirk Rudolph, P. Doornenbal, J. Jolie, Alison Bruce, A. Kelic, G. A. Jones, G. Ilie, L. Caceres, A. Maj, I. J. Cullen, Fernando Montes, A. J. Simons, S. Myalski, P. M. Walker, S. Tachenov, E. Estevez, S. Lalkovski, P. H. Regan, Furong Xu, C. Brandau, Yang Sun, and W. Gelletly

Subjects
Physics, Nuclear and High Energy Physics, Proton, Pairing, Metastability, Neutron, Atomic physics
Abstract

Erratum Erratum to: “Neutron–proton pairing competition in N = Z nuclei: Metastable state decays in the proton dripline nuclei 82 41Nb and 86 43Tc” [Phys. Lett. B 660 (2008) 326] A.B. Garnsworthy a,b,∗, P.H. Regan a, L. Caceres c,d, S. Pietri a, Y. Sun e,f, D. Rudolph g, M. Gorska c, Zs. Podolyak a, S.J. Steer a, R. Hoischen g,c, A. Heinz b, F. Becker c, P. Bednarczyk c,h, P. Doornenbal c, H. Geissel c, J. Gerl c, H. Grawe c, J. Grȩbosz h,c, A. Kelic c, I. Kojouharov c, N. Kurz c, F. Montes c, W. Prokopowicz c, T. Saito c, H. Schaffner c, S. Tachenov c, E. Werner-Malento c,i, H.J. Wollersheim c, G. Benzoni j, B.B. Blank k, C. Brandau a,c, A.M. Bruce l, F. Camera j, W.N. Catford a, I.J. Cullen a, Zs. Dombradim, E. Estevez n, W. Gelletly a, G. Ilie o,p, J. Jolie o, G.A. Jones a, A. Jungclaus d, M. Kmiecik h, F.G. Kondev q, T. Kurtukian-Nieto n,k, S. Lalkovski l,r, Z. Liu a, A. Maj h, S. Myalski h, M. Pfutzner i, S. Schwertel s, T. Shizuma a,t, A.J. Simons u,a, P.M. Walker a, O. Wieland j, F.R. Xu v

Published
2008

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