34 results on '"Ghazi-Moradi F"'
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2. Lifetimes of core-excited states in semi-magic 95Rh
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Ertoprak, A., Qi, C., Cederwall, B., Doncel, M., Jakobsson, U., Nyakó, B. M., Jaworski, G., Davies, P., de France, G., Kuti, I., Napoli, D. R., Wadsworth, R., Ghugre, S. S., Raut, R., Akkus, B., Al Azri, H., Algora, A., de Angelis, G., Atac, A., Bäck, T., Boso, A., Clément, E., Debenham, D. M., Dombrádi, Zs., Ertürk, S., Gadea, A., Ghazi Moradi, F., Gottardo, A., Hüyük, T., Ideguchi, E., Li, H., Michelagnoli, C., Modamio, V., Nyberg, J., Palacz, M., Petrache, C. M., Recchia, F., Sandzelius, M., Siciliano, M., Sohler, D., Timár, J., Valiente-Dobón, J. J., and Xiao, Z. G.
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- 2020
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3. Single neutron transfer on 23Ne and its relevance for the pathway of nucleosynthesis in astrophysical X-ray bursts
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Lotay, G., primary, Henderson, J., additional, Catford, W.N., additional, Ali, F.A., additional, Berean, J., additional, Bernier, N., additional, Bhattacharjee, S.S., additional, Bowry, M., additional, Caballero-Folch, R., additional, Davids, B., additional, Drake, T.E., additional, Garnsworthy, A.B., additional, Ghazi Moradi, F., additional, Gillespie, S.A., additional, Greaves, B., additional, Hackman, G., additional, Hallam, S., additional, Hymers, D., additional, Kasanda, E., additional, Levy, D., additional, Luna, B.K., additional, Mathews, A., additional, Meisel, Z., additional, Moukaddam, M., additional, Muecher, D., additional, Olaizola, B., additional, Orr, N.A., additional, Patel, H.P., additional, Rajabali, M.M., additional, Saito, Y., additional, Smallcombe, J., additional, Spencer, M., additional, Svensson, C.E., additional, Whitmore, K., additional, and Williams, M., additional
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- 2022
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- View/download PDF
4. M1 and E2 transition rates from core-excited states in semi-magic 94Ru
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Ertoprak, A., Cederwall, B., Qi, C., Doncel, M., Jakobsson, U., Nyakó, B. M., Jaworski, G., Davies, P., de France, G., Kuti, I., Napoli, D. R., Wadsworth, R., Ghugre, S. S., Raut, R., Akkus, B., Al Azri, H., Algora, A., de Angelis, G., Atac, A., Bäck, T., Boso, A., Clément, E., Debenham, D. M., Dombrádi, Zs., Ertürk, S., Gadea, A., Ghazi Moradi, F., Gottardo, A., Hüyük, T., Ideguchi, E., Li, H., Michelagnoli, C., Modamio, V., Nyberg, J., Palacz, M., Petrache, C. M., Recchia, F., Sandzelius, M., Siciliano, M., Timár, J., Valiente-Dobón, J. J., and Xiao, Z. G.
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- 2018
- Full Text
- View/download PDF
5. Single neutron transfer on Ne and its relevance for the pathway of nucleosynthesis in astrophysical X-ray bursts
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Lotay, G., Henderson, J., Catford, W.N., Ali, F.A., Berean, J., Bernier, N., Bhattacharjee, S.S., Bowry, M., Caballero-Folch, R., Davids, B., Drake, T.E., Garnsworthy, A.B., Ghazi Moradi, F., Gillespie, S.A., Greaves, B., Hackman, G., Hallam, S., Hymers, D., Kasanda, E., Levy, D., Luna, B.K., Mathews, A., Meisel, Z., Moukaddam, M., Muecher, D., Olaizola, B., Orr, N.A., Patel, H.P., Rajabali, M.M., Saito, Y., Smallcombe, J., Spencer, M., Svensson, C.E., Whitmore, K., and Williams, M.
- Abstract
We present new experimental measurements of resonance strengths in the astrophysical $^{23}$Al(p,γ)$^{24}$Si reaction, constraining the pathway of nucleosynthesis beyond $^{22}$Mg in X-ray burster scenarios. Specifically, we have performed the first measurement of the (d,p) reaction using a radioactive beam of $^{23}$Ne to explore levels in $^{24}$Ne, the mirror analog of $^{24}$Si. Four strong single-particle states were observed and corresponding neutron spectroscopic factors were extracted with a precision of ∼20%. Using these spectroscopic factors, together with mirror state identifications, we have reduced uncertainties in the strength of the key ℓ = 0 resonance at Er = 157 keV, in the astrophysical $^{23}$Al(p,γ) reaction, by a factor of 4. Our results show that the $^{22}$Mg(p,γ)$^{23}$Al(p,γ) pathway dominates over the competing $^{22}$Mg(α,p) reaction in all but the most energetic X-ray burster events (T>0.85 GK), significantly affecting energy production and the preservation of hydrogen fuel.
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- 2022
6. Isospin mixing and the cubic isobaric multiplet mass equation in the lowest T=2 , A=32 quintet
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Kamil, M., primary, Triambak, S., additional, Magilligan, A., additional, García, A., additional, Brown, B. A., additional, Adsley, P., additional, Bildstein, V., additional, Burbadge, C., additional, Diaz Varela, A., additional, Faestermann, T., additional, Garrett, P. E., additional, Hertenberger, R., additional, Kheswa, N. Y., additional, Leach, K. G., additional, Lindsay, R., additional, Marín-Lámbarri, D. J., additional, Ghazi Moradi, F., additional, Mukwevho, N. J., additional, Neveling, R., additional, Nzobadila Ondze, J. C., additional, Papka, P., additional, Pellegri, L., additional, Pesudo, V., additional, Rebeiro, B. M., additional, Scheck, M., additional, Smit, F. D., additional, and Wirth, H.-F., additional
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- 2021
- Full Text
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7. Lifetimes of core-excited states in semi-magic Rh-95
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Ertoprak, A., Qi, C., Cederwall, B., Doncel, M., Jakobsson, U., Nyako, B. M., Jaworski, G., Davies, P., de France, G., Kuti, I., Napoli, D. R., Wadsworth, R., Ghugre, S. S., Raut, R., Akkus, B., Al Azri, H., Algora, A., de Angelis, G., Atac, A., Bäck, T., Boso, A., Clement, E., Debenham, D. M., Dombradi, Zs., Ertürk, S., Gadea, A., Ghazi Moradi, F., Gottardo, A., Hüyük, T., Ideguchi, E., Li, H., Michelagnoli, C., Modamio, V., Nyberg, Johan, Palacz, M., Petrache, C. M., Recchia, F., Sandzelius, M., Siciliano, M., Sohler, D., Timar, J., Valiente-Dobon, J. J., Xiao, Z. G., and Department of Chemistry
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Subatomär fysik ,Subatomic Physics ,Nuclear Theory ,TRANSITIONS ,Nuclear Experiment ,114 Physical sciences ,SHIFT ATTENUATION METHOD - Abstract
Lifetimes of negative-parity states have been determined in the neutron deficient semi-magic (N = 50) nucleus Rh-95. The fusion-evaporation reaction Ni-58(Ca-40, 3p) was used to populate high-spin states in Rh-95 at the Grand Accelerateur National d'Ions Lourds (GANIL) accelerator facility. The results were obtained using the Doppler Shift Attenuation Method (DSAM) based on the Doppler broadened line shapes produced during the slowing down process of the residual nuclei in a thick 6 mg/cm(2) metallic target. B(M1) and B(E2) reduced transition strengths are compared with predictions from large-scale shell-model calculations. state-of-the-art theory. Remarkably, the structural features up to moderate angular momentum of nuclei immediately below the N = Z = 50 shell closures can be described with high accuracy in a very simple way by shell-model calculations including only the g(9/2) and p(1/2) subshells. Of special interest is the neutron-proton pair coupling scheme which is expected to appear in the heaviest N=Z nuclei [1,2] and the seniority structure of the N = 50 isotones [3-7]. However, multiple core-excited states have been observed in the semi-magic nuclei of the Sn-100 region [8-10]. The theoretical study of those states is a challenging task, which requires a significantly larger model space for their interpretation. Transition probabilities between nuclear states provide important constraints for theoretical modelling of the structure of the nuclei of interest. Our previous lifetime study of the semimagic (N = 50) nucleus Ru-94 [ 11,12] provided information on the electromagnetic decay properties of neutron-core excited states. We now address lifetime measurements in its closest, more neutron deficient, isotone Rh-95 using the same DSAM technique. The experimental results have been interpreted within the framework of large-scale shell-model (LSSM) calculations.
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- 2020
8. Lifetimes of core-excited states in semi-magic $^{95}$Rh
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Ertoprak, A., Qi, C., Cederwall, B., Doncel, M., Jakobsson, U., Nyakó, B. M., Jaworski, G., Davies, P., de France, G., Kuti, I., Napoli, D. R., Wadsworth, R., Ghugre, S. S., Raut, R., Akkus, B., Al Azri, H., Algora, A., de Angelis, G., Atac, A., Bäck, T., Boso, A., Clément, E., Debenham, D. M., Dombrádi, Zs, Ertürk, S., Gadea, A., Ghazi Moradi, F., Gottardo, A., Hüyük, T., Ideguchi, E., Li, H., Michelagnoli, C., Modamio, V., Nyberg, J., Palacz, M., Petrache, C. M., Recchia, F., Sandzelius, M., Siciliano, M., Sohler, D., Timár, J., Valiente-Dobón, J. J., Xiao, Z. G., 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), 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)
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lifetimes ,core-excited states ,[PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex] ,ydinfysiikka ,ComputingMilieux_MISCELLANEOUS - Abstract
Lifetimes of negative-parity states have been determined in the neutron deficient semi-magic (N = 50) nucleus 95Rh. The fusion-evaporation reaction 58Ni(40Ca,3p) was used to populate high-spin states in 95Rh at the Grand Accélérateur National d’Ions Lourds (GANIL) accelerator facility. The results were obtained using the Doppler Shift Attenuation Method (DSAM) based on the Doppler broadened line shapes produced during the slowing down process of the residual nuclei in a thick 6mg/cm2 metallic target. B(M1) and B(E2) reduced transition strengths are compared with predictions from large-scale shell-model calculations. peerReviewed
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- 2020
9. Neutron Skin Effects in Mirror Energy Differences: The Case of $^{23}$Mg$-$$^{23}$Na
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Boso, A., Lenzi, S. M., Recchia, F., Bonnard, J., Zuker, A. P., Aydin, S., Bentley, M. A., Cederwall, B., Clement, E., De France, G., Di Nitto, A., Dijon, A., Doncel, M., Ghazi-Moradi, F., Gadea, A., Gottardo, A., Henry, T., Hüyük, T., Jaworski, G., John, P. R., Juhász, K., Kuti, I., Melon, B., Mengoni, D., Michelagnoli, C., Modamio, V., Napoli, D. R., Nyakó, B. M., Nyberg, J., Palacz, M., Timár, J., Valiente-Dobón, J. J., 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 Pluridisciplinaire Hubert Curien (IPHC), Université de Strasbourg (UNISTRA)-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), Boso, A., Lenzi, S. M., Recchia, F., Bonnard, J., Zuker, A. P., Aydin, S., Bentley, M. A., Cederwall, B., Clement, E., De France, G., Di Nitto, A., Dijon, A., Doncel, M., Ghazi-Moradi, F., Gadea, A., Gottardo, A., Henry, T., Huyuk, T., Jaworski, G., John, P. R., Juhasz, K., Kuti, I., Melon, B., Mengoni, D., Michelagnoli, C., Modamio, V., Napoli, D. R., Nyako, B. M., Nyberg, J., Palacz, M., Timar, J., Valiente-Dobon, J. J., 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)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-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), 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)
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Physics and Astronomy (all) ,[PHYS.NUCL]Physics [physics]/Nuclear Theory [nucl-th] ,Nuclear Theory ,Nuclear Experiment - Abstract
International audience; Energy differences between analogue states in the T=1/2 Mg23-Na23 mirror nuclei have been measured along the rotational yrast bands. This allows us to search for effects arising from isospin-symmetry-breaking interactions (ISB) and/or shape changes. Data are interpreted in the shell model framework following the method successfully applied to nuclei in the f7/2 shell. It is shown that the introduction of a schematic ISB interaction of the same type of that used in the f7/2 shell is needed to reproduce the data. An alternative novel description, applied here for the first time, relies on the use of an effective interaction deduced from a realistic charge-dependent chiral nucleon-nucleon potential. This analysis provides two important results: (i) The mirror energy differences give direct insight into the nuclear skin; (ii) the skin changes along the rotational bands are strongly correlated with the difference between the neutron and proton occupations of the s1/2 “halo” orbit.
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- 2018
10. Neutron Skin Effects in Mirror Energy Differences: The Case of Mg-23-Na-23
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Boso, A., Lenzi, S. M., Recchia, F., Bonnard, J., Zuker, A. P., Aydin, S., Bentley, M. A., Cederwall, B., Clement, E., de France, G., Di Nitto, A., Dijon, A., Doncel, M., Ghazi-Moradi, F., Gadea, A., Gottardo, A., Henry, T., Huyuk, T., Jaworski, G., John, P. R., Juhasz, K., Kuti, I, Melon, B., Mengoni, D., Michelagnoli, C., Modamio, V, Napoli, D. R., Nyako, B. M., Nyberg, Johan, Palacz, M., Timar, J., Valiente-Dobon, J. J., [Boso, A. -- Lenzi, S. M. -- Recchia, F. -- Zuker, A. P. -- John, P. R. -- Mengoni, D. -- Michelagnoli, C.] Univ Padua, Dipartimento Fis & Astron, I-135131 Padua, Italy -- [Boso, A. -- Lenzi, S. M. -- Recchia, F. -- Bonnard, J. -- John, P. R. -- Mengoni, D. -- Michelagnoli, C.] INFN, Sez Padova, I-135131 Padua, Italy -- [Bonnard, J.] Univ Paris Saclay, Univ Paris Sud, Inst Phys Nucl, IN2P3,CNRS, F-91405 Orsay, France -- [Zuker, A. P.] Univ Strasbourg, F-67000 Strasbourg, France -- [Zuker, A. P.] IPHC, F-67000 Strasbourg, France -- [Aydin, S.] Aksaray Univ, Dept Phys, TR-68100 Aksaray, Turkey -- [Bentley, M. A. -- Henry, T.] Univ York, Dept Phys, York YO10 5DD, N Yorkshire, England -- [Cederwall, B. -- Doncel, M. -- Ghazi-Moradi, F.] Royal Inst Technol, Dept Phys, SE-10691 Stockholm, Sweden -- [Clement, E. -- de France, G. -- Dijon, A.] CNRS, CEA, GANIL, DRF,IN2P3, F-14076 Caen, France -- [Di Nitto, A.] Dipartimento Fis, I-80126 Naples, Italy -- [Di Nitto, A.] INFN, Sez Napoli, I-80126 Naples, Italy -- [Di Nitto, A.] Johannes Gutenberg Univ Mainz, D-55099 Mainz, Germany -- [Gadea, A. -- Huyuk, T.] Univ Valencia, IFIC, CSIC, E-46980 Valencia, Spain -- [Gottardo, A. -- Modamio, V -- Napoli, D. R. -- Valiente-Dobon, J. J.] INFN, Lab Nazl Legnaro, I-35020 Padua, Italy -- [Jaworski, G. -- Palacz, M.] Warsaw Univ, Heavy Ion Lab, PL-02093 Warsaw, Poland -- [Juhasz, K. -- Kuti, I -- Nyako, B. M. -- Timar, J.] Hung Acad Sci, Inst Nucl Res ATOMKI, H-4001 Debrecen, Hungary -- [Melon, B.] Dipartimento Fis, I-50019 Florence, Italy -- [Melon, B.] INFN, Sez Firenze, I-50019 Florence, Italy -- [Nyberg, J.] Uppsala Univ, Dept Phys & Astron, SE-75120 Uppsala, Sweden -- [Boso, A.] Natl Phys Lab, Hampton Rd, Teddington TW11 0LW, Middx, England -- [John, P. R.] Tech Univ Darmstadt, Inst Kernphys, D-64289 Darmstadt, Germany, Cederwall, Bo -- 0000-0003-1771-2656, Di Nitto, Antonio -- 0000-0002-9319-366X, Huyuk, Tayfun -- 0000-0003-0597-9767, Gadea, Andres -- 0000-0002-4233-1970, GOTTARDO, Andrea -- 0000-0002-0390-5767, de France, Gilles -- 0000-0002-7439-1759, and Clement, Emmanuel -- 0000-0003-1887-717X
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Subatomär fysik ,Nuclear Theory ,Subatomic Physics ,Nuclear Experiment - Abstract
WOS: 000439286800004, PubMed: 30085775, Energy differences between analogue states in the T = 1/2 Mg-23-Na-23 mirror nuclei have been measured along the rotational yrast bands. This allows us to search for effects arising from isospin-symmetrybreaking interactions (ISB) and/or shape changes. Data are interpreted in the shell model framework following the method successfully applied to nuclei in the f(7/2) shell. It is shown that the introduction of a schematic ISB interaction of the same type of that used in the f(7/2) shell is needed to reproduce the data. An alternative novel description, applied here for the first time, relies on the use of an effective interaction deduced from a realistic charge-dependent chiral nucleon-nucleon potential. This analysis provides two important results: (i) The mirror energy differences give direct insight into the nuclear skin; (ii) the skin changes along the rotational bands are strongly correlated with the difference between the neutron and proton occupations of the s(1/2) "halo" orbit., European Union [262010 ENSAR, FP7/2007-2013], The authors are grateful to the GANIL accelerator team. This work has been financed by the European Union Seventh Framework Program No. FP7/2007-2013 under Grant Agreement No. 262010 ENSAR.
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- 2018
11. ISOSPIN SYMMETRY BREAKING IN MIRROR NUCLEI Mg-23-Na-23
- Author
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Boso, A., Lenzi, S. M., Recchia, F., Bonnard, J., Aydin, S., Bentley, M. A., Cederwall, B., Clement, E., De France, G., Di Nitto, A., Dijon, A., Doncel, M., Ghazi-Moradi, F., Gottardo, A., Henry, T., Huyuk, T., Jaworski, G., John, P. R., Juhasz, K., Kuti, I., Melon, B., Mengoni, D., Michelagnoli, C., Modamio, V., Napoli, D. R., Nyako, B. M., Nyberg, J., Palacz, M., Valiente-Dobon, J. J., [Lenzi, S. M. -- Recchia, F. -- Bonnard, J. -- John, P. R. -- Mengoni, D. -- Michelagnoli, C.] Univ Padua, Dipartimento Fis & Astron, Padua, Italy -- [Lenzi, S. M. -- Recchia, F. -- Bonnard, J. -- John, P. R. -- Mengoni, D. -- Michelagnoli, C.] Ist Nazl Fis Nucl, Sez Padova, Padua, Italy -- [Aydin, S.] Aksaray Univ, Dept Phys, Aksaray, Turkey -- [Bentley, M. A. -- Henry, T.] Univ York, York, N Yorkshire, England -- [Cederwall, B. -- Doncel, M. -- Ghazi-Moradi, F.] Royal Inst Technol, Dept Phys, Stockholm, Sweden -- [Clement, E. -- De France, G. -- Dijon, A.] GANIL, Caen, France -- [Di Nitto, A.] Dipartimento Sci Fis, Naples, Italy -- [Di Nitto, A.] Ist Nazl Fis Nucl, Sez Napoli, Naples, Italy -- [Gottardo, A. -- Modamio, V. -- Napoli, D. R.] Ist Nazl Fis Nucl, Lab Nazl Legnaro, Padua, Italy -- [Huyuk, T.] IFIC CSIC, Valencia, Spain -- [Jaworski, G. -- Palacz, M.] Warsaw Univ, Heavy Ion Lab, Warsaw, Poland -- [Juhasz, K.] Univ Debrecen, H-4032 Debrecen, Hungary -- [Kuti, I. -- Nyako, B. M.] MTA Atomki, H-4001 Debrecen, Hungary -- [Melon, B.] Dipartimento Fis, Florence, Italy -- [Melon, B.] Ist Nazl Fis Nucl, Sez Firenze, Florence, Italy -- [Nyberg, J.] Uppsala Univ, Dept Phys & Astron, Uppsala, Sweden, Di Nitto, Antonio -- 0000-0002-9319-366X, Cederwall, Bo -- 0000-0003-1771-2656, Huyuk, Tayfun -- 0000-0003-0597-9767, John, Philipp Rudolf -- 0000-0003-1994-7248, de France, Gilles -- 0000-0002-7439-1759, BOSO, ALBERTO -- 0000-0001-9670-8123, Clement, Emmanuel -- 0000-0003-1887-717X, GOTTARDO, Andrea -- 0000-0002-0390-5767, and Napoli, Daniel R. -- 0000-0002-8154-6958
- Abstract
Zakopane Conference on Nuclear Physics - Extremes of the Nuclear Landscape -- AUG 28-SEP 04, 2016 -- Zakopane, POLAND, WOS: 000398717500011, Mirror energy differences (MED) are a direct consequence of isospin symmetry breaking. Moreover, the study of MED has proved to give valuable information of several nuclear structure properties. We present the results of an experiment performed in GANIL to study the MED in mirror nuclei Mg-23-Na-23 up to high spin. The experimental values are compared with state-of-the-art shell model calculations. This permits to enlighten several nuclear structure properties, such as the way in which the nucleons alignment proceeds, the radius variation with J, the role of the spin-orbit interaction and the importance of isospin symmetry breaking terms of nuclear origin.
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- 2017
12. Neutron Skin Effects in Mirror Energy Differences: The Case of Mg23−Na23
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Boso, A., primary, Lenzi, S. M., additional, Recchia, F., additional, Bonnard, J., additional, Zuker, A. P., additional, Aydin, S., additional, Bentley, M. A., additional, Cederwall, B., additional, Clement, E., additional, de France, G., additional, Di Nitto, A., additional, Dijon, A., additional, Doncel, M., additional, Ghazi-Moradi, F., additional, Gadea, A., additional, Gottardo, A., additional, Henry, T., additional, Hüyük, T., additional, Jaworski, G., additional, John, P. R., additional, Juhász, K., additional, Kuti, I., additional, Melon, B., additional, Mengoni, D., additional, Michelagnoli, C., additional, Modamio, V., additional, Napoli, D. R., additional, Nyakó, B. M., additional, Nyberg, J., additional, Palacz, M., additional, Timár, J., additional, and Valiente-Dobón, J. J., additional
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- 2018
- Full Text
- View/download PDF
13. Lifetime measurement of neutron-rich even-even molybdenum isotopes
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Ralet, D., Pietri, S., Rodríguez, T., Alaqeel, M., Alexander, T., Alkhomashi, N, Ameil, F., Arici, T., Ataç, A., Avigo, R., Bäck, Torbjörn, Bazzacco, D, Birkenbach, B., Boutachkov, P., Bruyneel, B., Bruce, A. M., Camera, F., Cederwall, B., Ceruti, S., Clément, E., Cortes, M.L., Curien, D., de Angelis, G, Désesquelles, P., Dewald, M., Didierjean, F., Domingo-Pardo, C., Doncel, M., Duchêne, G., Eberth, J, Gadea, A, Gerl, J, Ghazi Moradi, F., Geissel, H., Goigoux, T., Goel, N., Golubev, P., González, V., Górska, M, Gottardo, A., Gregor, E., Guastalla, G., Givechev, A., Habermann, T., Hackstein, M., Harkness-Brennan, L., Henning, G., Lalovic, Natasa, Rudolph, D., Sarmiento, L. G., PreSPEC Collaboration, AGATA collaboration, Ralet, D., Pietri, S., Rodríguez, T., Alaqeel, M., Alexander, T., Alkhomashi, N, Ameil, F., Arici, T., Ataç, A., Avigo, R., Bäck, Torbjörn, Bazzacco, D, Birkenbach, B., Boutachkov, P., Bruyneel, B., Bruce, A. M., Camera, F., Cederwall, B., Ceruti, S., Clément, E., Cortes, M.L., Curien, D., de Angelis, G, Désesquelles, P., Dewald, M., Didierjean, F., Domingo-Pardo, C., Doncel, M., Duchêne, G., Eberth, J, Gadea, A, Gerl, J, Ghazi Moradi, F., Geissel, H., Goigoux, T., Goel, N., Golubev, P., González, V., Górska, M, Gottardo, A., Gregor, E., Guastalla, G., Givechev, A., Habermann, T., Hackstein, M., Harkness-Brennan, L., Henning, G., Lalovic, Natasa, Rudolph, D., Sarmiento, L. G., PreSPEC Collaboration, and AGATA collaboration
- Abstract
Background: In the neutron-rich A≈100 mass region, rapid shape changes as a function of nucleon number as well as coexistence of prolate, oblate, and triaxial shapes are predicted by various theoretical models. Lifetime measurements of excited levels in the molybdenum isotopes allow the determination of transitional quadrupole moments, which in turn provides structural information regarding the predicted shape change. Purpose: The present paper reports on the experimental setup, the method that allowed one to measure the lifetimes of excited states in even-even molybdenum isotopes from mass A=100 up to mass A=108, and the results that were obtained. Method: The isotopes of interest were populated by secondary knock-out reaction of neutron-rich nuclei separated and identified by the GSI fragment separator at relativistic beam energies and detected by the sensitive PreSPEC-AGATA experimental setup. The latter included the Lund-York-Cologne calorimeter for identification, tracking, and velocity measurement of ejectiles, and AGATA, an array of position sensitive segmented HPGe detectors, used to determine the interaction positions of the γ ray enabling a precise Doppler correction. The lifetimes were determined with a relativistic version of the Doppler-shift-attenuation method using the systematic shift of the energy after Doppler correction of a γ-ray transition with a known energy. This relativistic Doppler-shift-attenuation method allowed the determination of mean lifetimes from 2 to 250 ps. Results: Even-even molybdenum isotopes from mass A=100 to A=108 were studied. The decays of the low-lying states in the ground-state band were observed. In particular, two mean lifetimes were measured for the first time: τ=29.7-9.1+11.3 ps for the 4+ state of Mo108 and τ=3.2-0.7+0.7 ps for the 6+ state of Mo102. Conclusions: The reduced transition strengths B(E2), calculated from lifetimes measured in this experiment, compared to beyond-mean-field calculations, indicate a gradua
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- 2017
14. Character of particle-hole excitations in 94 Ru deduced from γ -ray angular correlation and linear polarization measurements
- Author
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Ghazi Moradi F., Qi C., Cederwall B., Atac A., Back T., Liotta R., Doncel M., Johnson A., De France G., Clement E., Dijon A., Wadsworth R., Henry T. W., Nichols A. J., Al-Azri H., Nyberg J., Gengelbach A., Huyuk T., Nyako B. M., Timar J., Sohler D., Dombradi Z., Kuti I., Juhasz K., Palacz M., Jaworski G., Lenzi S. M., John P. R., Napoli D. R., Gottardo A., Modamio V., Di Nitto A., Yilmaz B., Aktas O., Ideguchi E., Ghazi Moradi, F., Qi, C., Cederwall, B., Atac, A., Back, T., Liotta, R., Doncel, M., Johnson, A., De France, G., Clement, E., Dijon, A., Wadsworth, R., Henry, T. W., Nichols, A. J., Al-Azri, H., Nyberg, J., Gengelbach, A., Huyuk, T., Nyako, B. M., Timar, J., Sohler, D., Dombradi, Z., Kuti, I., Juhasz, K., Palacz, M., Jaworski, G., Lenzi, S. M., John, P. R., Napoli, D. R., Gottardo, A., Modamio, V., Di Nitto, A., Yilmaz, B., Aktas, O., and Ideguchi, E.
- Published
- 2014
15. Spectroscopy of the neutron-deficient N=50 nucleus Rh 95
- Author
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Ghazi Moradi F., Cederwall B., Qi C., Back T., Atac A., Liotta R., Doncel M., Johnson A., De France G., Clement E., Nyberg J., Gengelbach A., Nyako B. M., Gal J., Kalinka G., Molnar J., Timar J., Sohler D., Dombradi Z., Kuti I., Juhasz K., Napoli D. R., Gottardo A., Modamio V., Wadsworth R., Henry T. W., Nichols A. J., Al-Azri H., Palacz M., Ideguchi E., Aktas O., Di Nitto A., Dijon A., Huyuk T., Jaworski G., John P. R., Yilmaz B., Ghazi Moradi, F., Cederwall, B., Qi, C., Back, T., Atac, A., Liotta, R., Doncel, M., Johnson, A., De France, G., Clement, E., Nyberg, J., Gengelbach, A., Nyako, B. M., Gal, J., Kalinka, G., Molnar, J., Timar, J., Sohler, D., Dombradi, Z., Kuti, I., Juhasz, K., Napoli, D. R., Gottardo, A., Modamio, V., Wadsworth, R., Henry, T. W., Nichols, A. J., Al-Azri, H., Palacz, M., Ideguchi, E., Aktas, O., Di Nitto, A., Dijon, A., Huyuk, T., Jaworski, G., John, P. R., and Yilmaz, B.
- Published
- 2014
16. Isospin Symmetry Breaking in Mirror Nuclei $^{23}$Mg--$^{23}$Na
- Author
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Boso, A., primary, Lenzi, S.M., additional, Recchia, F., additional, Bonnard, J., additional, Aydin, S., additional, Bentley, M.A., additional, Cederwall, B., additional, Clement, E., additional, De France, G., additional, Di Nitto, A., additional, Dijon, A., additional, Doncel, M., additional, Ghazi-Moradi, F., additional, Gottardo, A., additional, Henry, T., additional, Hüyük, T., additional, Jaworski, G., additional, John, P.R., additional, Juhász, K., additional, Kuti, I., additional, Melon, B., additional, Mengoni, D., additional, Michelagnoli, C., additional, Modamio, V., additional, Napoli, D.R., additional, Nyakó, B.M., additional, Nyberg, J., additional, Palacz, M., additional, and Valiente-Dobón, J.J., additional
- Published
- 2017
- Full Text
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17. Lifetime Measurements with the Doppler Shift Attenuation Method Using a Thick Homogeneous Production Target --- Verification of the Method
- Author
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Ertoprak, A., primary, Cederwall, B., additional, Jakobsson, U., additional, Nyakó, B.M., additional, Nyberg, J., additional, Davies, P., additional, Doncel, M., additional, De France, G., additional, Kuti, I., additional, Napoli, D.R., additional, Wadsworth, R., additional, Ghugre, S.S., additional, Raut, R., additional, Akkus, B., additional, Al-Azri, H., additional, Algora, A., additional, de Angelis, G., additional, Atac, A., additional, Bäck, T., additional, Boso, A., additional, Clément, E., additional, Debenham, D.M., additional, Dombrádi, Zs., additional, Erturk, S., additional, Gadea, A., additional, Ghazi Moradi, F., additional, Gottardo, A., additional, Huyuk, T., additional, Ideguchi, E., additional, Jaworski, G., additional, Li, H., additional, Michelagnoli, C., additional, Modamio, V., additional, Palacz, M., additional, Petrache, C.M., additional, Recchia, F., additional, Sandzelius, M., additional, Siciliano, M., additional, Timár, J., additional, Valiente-Dobón, J.J., additional, and Xiao, Z.G., additional
- Published
- 2017
- Full Text
- View/download PDF
18. Character of particle-hole excitations in γ-ray angular correlation and linear polarization measurements
- Author
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Ghazi Moradi, F., Qi, C., Cederwall, B., Atac, A., Back, T., Liotta, R., Doncel, M., Johnson, A., de France, G., Clement, E., Dijon, A., Wadsworth, R., Henry, T. W., Nichols, A. J., Al Azri, H., Nyberg, J., Gengelbach, A., Huyuk, T., Nyako, B. M., Timar, J., Sohler, D., Dombradi, Z. s., Kuti, I., Juhasz, K., Palacz, M., Jaworski, G., Lenzi, SILVIA MONICA, John, PHILIPP RUDOLF, Napoli, D. R., Gottardo, Andrea, Modamio, V., Di Nitto, A., Yilmaz, B., Aktas, O., and Ideguchi, E.
- Published
- 2014
19. Character of particle-hole excitations in 94 Ru deduced from gamma-ray angular correlation and linear polarization measurements
- Author
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Ghazi Moradi, F., Qi, C., Cederwall, B., Ataç, A., Bäck, T., Liotta, R. J., Doncel, M., Johnson, A., De France, G., Clément, E., Dijon, A., Wadsworth, R., Henry, T. W., Nichols, A. J., Al-Azri, H., Nyberg, J., Gengelbach, A., Hüyük, T., Nyakó, Barna Mátyás, Timár, János, Sohler, Dóra, Dombrádi, Zsolt, Kuti, István, Juhász, K., Palacz, M., Jaworski, G., Lenzi, S. M., John, P. R., Napoli, D. R., Gottardo, A., Modamio, V., Di Nitto, A., Yilmaz, B., Aktas, Ö., and Ideguchi, Eiji
- Subjects
Természettudományok ,Fizikai tudományok - Published
- 2014
20. Spectroscopy of the neutron-deficient N=50 nucleus 95Rh
- Author
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Ghazi Moradi, F., Cederwall, B., Qi, C., Bäck, T., Ataç, A., Liotta, R. J., Doncel, M., Johnson, A., De France, G., Clément, E., Nyberg, J., Gengelbach, A., Nyakó, Barna Mátyás, Gál, J., Kalinka, Gábor, Molnár, J., Timár, János, Sohler, Dóra, Dombrádi, Zsolt, Kuti, István, Juhász, K., Napoli, D. R., Gottardo, A., Modamio, V., Wadsworth, R., Henry, T. W., Nichols, A. J., Al-Azri, H., Palacz, M., Ideguchi, Eiji, Aktas, Ö., Di Nitto, A., Dijon, A., Hüyük, T., Jaworski, G., John, P. R., and Yilmaz, B.
- Subjects
Természettudományok ,Fizikai tudományok - Published
- 2014
21. Lifetime measurement of the first excited 2+ state in 108Te
- Author
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Bäck, T., Qi., C., Ghazi Moradi, F., Cederwall, B., Johnson, A., Liotta, R., Wyss, R., Al-Azri, H., Bloor, D., Brock, T., Wadsworth, R., Grahn, T., T. Greenlees, P., Hauschild, K., Herzan, A., Jacobsson, U., M. Jones, P., Julin, R., Juutinen, S., Ketelhut, S., Leino, M., Lopez-Martens, A., Nieminen, P., Peura, P., Rahkila, P., Rinta-Antila, S., Ruotsalainen, P., Sandzelius, M., Sarén, J., Scholey, C., Sorri, J., Uusitalo, J., Go, S., Ideguchi, E., M. Cullen, D., G. Procter, M., Braunroth, T., Dewald, A., Fransen, C., Hackstein, M., Litzinger, J., Rother, W., CSNSM SNO, Centre de Spectrométrie Nucléaire et de Spectrométrie de Masse (CSNSM), 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)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11)-Centre de Sciences Nucléaires et de Sciences de la Matière (CSNSM), and 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)
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SPECTROSCOPY ,SPECTROMETERS ,TOTAL DATA READOUT ,Physical Sciences ,Fysik ,Physics::Atomic Physics ,21.10.Tg, 21.60.Cs, 27.60.+j ,[PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex] ,Nuclear Experiment - Abstract
The lifetime of the first excited 2(+) state in the neutron deficient nuclide (108)Te has been measured for the first time, using a combined recoil decay tagging and recoil distance Doppler shift technique. The deduced reduced transition probability is B(E2;0(g.s.)(+) -> 2(+)) = 0.39(-0.04)(+0.05)e(2)b(2). Compared to previous experimental data on neutron deficient tellurium isotopes, the new data point constitutes a large step (six neutrons) toward the N = 50 shell closure. In contrast to what has earlier been reported for the light tin isotopes, our result for tellurium does not show any enhanced transition probability with respect to the theoretical predictions and the tellurium systematics including the new data is successfully reproduced by state-of-the-art shell model calculations. QC 20111219
- Published
- 2011
22. ISOSPIN SYMMETRY BREAKING IN MIRROR NUCLEI 23Mg-23Na.
- Author
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BOSO, A., LENZI, S. M., RECCHIA, F., BONNARD, J., AYDIN, S., BENTLEY, M. A., CEDERWALL, B., CLEMENT, E., DE FRANCE, G., DI NITTO, A., DIJON, A., DONCEL, M., GHAZI-MORADI, F., GOTTARDO, A., HENRY, T., HüYüK, T., JAWORSKI, G., JOHN, P. R., JUHáSZ, K., and KUTI, I.
- Subjects
ISOBARIC spin ,SYMMETRY breaking ,NUCLEAR structure ,SPIN-orbit interactions ,MAGNESIUM isotopes ,SODIUM - Abstract
Mirror energy differences (MED) are a direct consequence of isospin symmetry breaking. Moreover, the study of MED has proved to give valuable information of several nuclear structure properties. We present the results of an experiment performed in GANIL to study the MED in mirror nuclei
23 Mg-23 Na up to high spin. The experimental values are compared with state-of-the-art shell model calculations. This permits to enlighten several nuclear structure properties, such as the way in which the nucleons alignment proceeds, the radius variation with J, the role of the spin-orbit interaction and the importance of isospin symmetry breaking terms of nuclear origin. [ABSTRACT FROM AUTHOR]- Published
- 2017
- Full Text
- View/download PDF
23. Spectroscopy of the neutron-deficientN=50nucleusRh95
- Author
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Ghazi Moradi, F., primary, Cederwall, B., additional, Qi, C., additional, Bäck, T., additional, Ataç, A., additional, Liotta, R., additional, Doncel, M., additional, Johnson, A., additional, de France, G., additional, Clément, E., additional, Nyberg, J., additional, Gengelbach, A., additional, Nyakó, B. M., additional, Gál, J., additional, Kalinka, G., additional, Molnár, J., additional, Timár, J., additional, Sohler, D., additional, Dombrádi, Zs., additional, Kuti, I., additional, Juhász, K., additional, Napoli, D. R., additional, Gottardo, A., additional, Modamio, V., additional, Wadsworth, R., additional, Henry, T. W., additional, Nichols, A. J., additional, Al-Azri, H., additional, Palacz, M., additional, Ideguchi, E., additional, Aktas, Ö., additional, Di Nitto, A., additional, Dijon, A., additional, Hüyük, T., additional, Jaworski, G., additional, John, P. R., additional, and Yilmaz, B., additional
- Published
- 2014
- Full Text
- View/download PDF
24. Character of particle-hole excitations in94Ru deduced fromγ-ray angular correlation and linear polarization measurements
- Author
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Ghazi Moradi, F., primary, Qi, C., additional, Cederwall, B., additional, Ataç, A., additional, Bäck, T., additional, Liotta, R., additional, Doncel, M., additional, Johnson, A., additional, de France, G., additional, Clément, E., additional, Dijon, A., additional, Wadsworth, R., additional, Henry, T. W., additional, Nichols, A. J., additional, Al-Azri, H., additional, Nyberg, J., additional, Gengelbach, A., additional, Hüyük, T., additional, Nyakó, B. M., additional, Timár, J., additional, Sohler, D., additional, Dombrádi, Zs., additional, Kuti, I., additional, Juhász, K., additional, Palacz, M., additional, Jaworski, G., additional, Lenzi, S. M., additional, John, P. R., additional, Napoli, D. R., additional, Gottardo, A., additional, Modamio, V., additional, Di Nitto, A., additional, Yilmaz, B., additional, Aktas, Ö., additional, and Ideguchi, E., additional
- Published
- 2014
- Full Text
- View/download PDF
25. γ-ray linear polarization measurements and (g9/2)-3 neutron alignment in 91Ru
- Author
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Zheng, Y., de France, G., Clément, E., Dijon, A., Cederwall, B., Wadsworth, R., Bäck, T., Ghazi Moradi, F., Jawoeski, G., Nyako, B.M., Palacz, M., Sletten, Geirr, Zheng, Y., de France, G., Clément, E., Dijon, A., Cederwall, B., Wadsworth, R., Bäck, T., Ghazi Moradi, F., Jawoeski, G., Nyako, B.M., Palacz, M., and Sletten, Geirr
- Published
- 2013
26. γ-ray linear polarization measurements and(g9/2)−3neutron alignment in91Ru
- Author
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Zheng, Y., primary, de France, G., additional, Clément, E., additional, Dijon, A., additional, Cederwall, B., additional, Wadsworth, R., additional, Bäck, T., additional, Ghazi Moradi, F., additional, Jaworski, G., additional, Nyakó, B. M., additional, Nyberg, J., additional, Palacz, M., additional, Al-Azri, H., additional, de Angelis, G., additional, Atac, A., additional, Aktaş, Ö., additional, Bhattacharyya, S., additional, Brock, T., additional, Davies, P. J., additional, Di Nitto, A., additional, Dombrádi, Zs., additional, Gadea, A., additional, Gál, J., additional, Joshi, P., additional, Juhász, K., additional, Julin, R., additional, Jungclaus, A., additional, Kalinka, G., additional, Kownacki, J., additional, La Rana, G., additional, Lenzi, S. M., additional, Molnár, J., additional, Moro, R., additional, Napoli, D. R., additional, Nara Singh, B. S., additional, Persson, A., additional, Recchia, F., additional, Sandzelius, M., additional, Scheurer, J.-N., additional, Sletten, G., additional, Sohler, D., additional, Söderström, P.-A., additional, Taylor, M. J., additional, Timár, J., additional, Valiente-Dobon, J. J., additional, and Vardaci, E., additional
- Published
- 2013
- Full Text
- View/download PDF
27. Transition probabilities near100Sn and the stability of theN,Z=50shell closure
- Author
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Bäck, T., primary, Qi, C., additional, Cederwall, B., additional, Liotta, R., additional, Ghazi Moradi, F., additional, Johnson, A., additional, Wyss, R., additional, and Wadsworth, R., additional
- Published
- 2013
- Full Text
- View/download PDF
28. TheB(E2;0+gs→ 2+) systematics of Sn and Te isotopes in light of data in the light Sn region including a recent measurement in108Te using the combined recoil–decay–tagging–recoil-distance Doppler technique
- Author
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Bäck, T, primary, Qi, C, additional, Cederwall, B, additional, Liotta, R, additional, Ghazi Moradi, F, additional, Johnson, A, additional, Wyss, R, additional, and Wadsworth, R, additional
- Published
- 2012
- Full Text
- View/download PDF
29. High-spin study of162Ta
- Author
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Ghazi Moradi, F., primary, Bäck, T., additional, Cederwall, B., additional, Sandzelius, M., additional, Atac, A., additional, Johnson, A., additional, Qi, C., additional, Liotta, R., additional, Hadinia, B., additional, Andgren, K., additional, Khaplanov, A., additional, Wyss, R., additional, Eeckhaudt, S., additional, Grahn, T., additional, Greenlees, P. T., additional, Jones, P. M., additional, Julin, R., additional, Juutinen, S., additional, Ketelhut, S., additional, Leino, M., additional, Nyman, M., additional, Rahkila, P., additional, Sarén, J., additional, Scholey, C., additional, Sorri, J., additional, Uusitalo, J., additional, Ganioğlu, E., additional, Thomson, J., additional, Joss, D. T., additional, Page, R. D., additional, Ertürk, S., additional, Simpson, J., additional, Gomez Hornillos, M. B., additional, and Bianco, L., additional
- Published
- 2011
- Full Text
- View/download PDF
30. Lifetime measurement of the first excited2+state in108Te
- Author
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Bäck, T., primary, Qi, C., additional, Ghazi Moradi, F., additional, Cederwall, B., additional, Johnson, A., additional, Liotta, R., additional, Wyss, R., additional, Al-Azri, H., additional, Bloor, D., additional, Brock, T., additional, Wadsworth, R., additional, Grahn, T., additional, Greenlees, P. T., additional, Hauschild, K., additional, Herzan, A., additional, Jacobsson, U., additional, Jones, P. M., additional, Julin, R., additional, Juutinen, S., additional, Ketelhut, S., additional, Leino, M., additional, Lopez-Martens, A., additional, Nieminen, P., additional, Peura, P., additional, Rahkila, P., additional, Rinta-Antila, S., additional, Ruotsalainen, P., additional, Sandzelius, M., additional, Sarén, J., additional, Scholey, C., additional, Sorri, J., additional, Uusitalo, J., additional, Go, S., additional, Ideguchi, E., additional, Cullen, D. M., additional, Procter, M. G., additional, Braunroth, T., additional, Dewald, A., additional, Fransen, C., additional, Hackstein, M., additional, Litzinger, J., additional, and Rother, W., additional
- Published
- 2011
- Full Text
- View/download PDF
31. M1 and E2 transition rates from core-excited states in semi-magic 94Ru
- Author
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V. Modamio, F. Ghazi Moradi, Ulrika Jakobsson, Bo Cederwall, Torbjörn Bäck, H. W. Li, J. J. Valiente-Dobón, M. Siciliano, S. Erturk, István Kuti, Chong Qi, Eiji Ideguchi, D. R. Napoli, C. Michelagnoli, S. S. Ghugre, A. Gottardo, R. Wadsworth, János Timár, R. Raut, Zs. Dombradi, M. Doncel, A. Algora, A. Boso, G. Jaworski, G. de Angelis, P. J. Davies, Zhigang Xiao, D. M. Debenham, H. Al Azri, C. M. Petrache, A. Atac, Eric Clément, Baki Akkuş, F. Recchia, Mikael Sandzelius, A. Gadea, T. Hüyük, A. Ertoprak, M. Palacz, Johan Nyberg, B. M. Nyakó, Ertoprak, A., Department of Physics, Royal Institute of Technology (KTH), Stockholm, SE-10691, Sweden, Department of Physics, Faculty of Science, Istanbul University, Vezneciler/Fatih, Istanbul, 34134, Turkey -- Cederwall, B., Department of Physics, Royal Institute of Technology (KTH), Stockholm, SE-10691, Sweden -- Qi, C., Department of Physics, Royal Institute of Technology (KTH), Stockholm, SE-10691, Sweden -- Doncel, M., Department of Physics, Royal Institute of Technology (KTH), Stockholm, SE-10691, Sweden, Department of Physics, Oliver Lodge Laboratory, University of Liverpool, Liverpool, L69 7ZE, United Kingdom -- Jakobsson, U., Department of Physics, Royal Institute of Technology (KTH), Stockholm, SE-10691, Sweden, Department of Chemistry, University of Helsinki, P.O. Box 3, Helsinki, 00014, Finland -- Nyakó, B.M., MTA Atomki, Debrecen, H-4001, Hungary -- Jaworski, G., Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di Legnaro, Legnaro, I-35020, Italy -- Davies, P., Department of Physics, University of York, Heslington, York, YO10 5DD, United Kingdom -- de France, G., Grand Accélérateur National d’Ions Lourds (GANIL), CEA/DSM - CNRS/IN2P3, Bd Henri Becquerel, BP 55027, Caen Cedex 5, F-14076, France -- Kuti, I., MTA Atomki, Debrecen, H-4001, Hungary -- Napoli, D.R., Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di Legnaro, Legnaro, I-35020, Italy -- Wadsworth, R., Department of Physics, University of York, Heslington, York, YO10 5DD, United Kingdom -- Ghugre, S.S., UGC-DAE Consortium for Scientific Research, Kolkata Centre, Kolkata, 700098, India -- Raut, R., UGC-DAE Consortium for Scientific Research, Kolkata Centre, Kolkata, 700098, India -- Akkus, B., Department of Physics, Faculty of Science, Istanbul University, Vezneciler/Fatih, Istanbul, 34134, Turkey -- Al Azri, H., Department of Physics, University of York, Heslington, York, YO10 5DD, United Kingdom -- Algora, A., MTA Atomki, Debrecen, H-4001, Hungary, Instituto de Física Corpuscular, CSIC-Universidad de Valencia, Valencia, E-46980, Spain -- de Angelis, G., Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di Legnaro, Legnaro, I-35020, Italy -- Atac, A., Department of Physics, Royal Institute of Technology (KTH), Stockholm, SE-10691, Sweden -- Bäck, T., Department of Physics, Royal Institute of Technology (KTH), Stockholm, SE-10691, Sweden -- Boso, A., Dipartimento di Fisica e Astronomia, Università di Padova, Padova, Italy -- Clément, E., Grand Accélérateur National d’Ions Lourds (GANIL), CEA/DSM - CNRS/IN2P3, Bd Henri Becquerel, BP 55027, Caen Cedex 5, F-14076, France -- Debenham, D.M., Department of Physics, University of York, Heslington, York, YO10 5DD, United Kingdom -- Dombrádi, Z., MTA Atomki, Debrecen, H-4001, Hungary -- Ertürk, S., Nigde Omer Halisdemir University, Science and Art Faculty, Department of Physics, Nigde, 51200, Turkey -- Gadea, A., Instituto de Física Corpuscular, CSIC-Universidad de Valencia, Valencia, E-46980, Spain -- Ghazi Moradi, F., Department of Physics, Royal Institute of Technology (KTH), Stockholm, SE-10691, Sweden -- Gottardo, A., Centre de Sciences Nucléaires et Sciences de la Matière, CNRS/IN2P3, Université Paris-Saclay, Orsay, 91405, France -- Hüyük, T., Instituto de Física Corpuscular, CSIC-Universidad de Valencia, Valencia, E-46980, Spain -- Ideguchi, E., Research Center for Nuclear Physics, Osaka University, Osaka, Japan -- Li, H., Department of Physics, Royal Institute of Technology (KTH), Stockholm, SE-10691, Sweden -- Michelagnoli, C., Grand Accélérateur National d’Ions Lourds (GANIL), CEA/DSM - CNRS/IN2P3, Bd Henri Becquerel, BP 55027, Caen Cedex 5, F-14076, France -- Modamio, V., Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di Legnaro, Legnaro, I-35020, Italy -- Nyberg, J., Department of Physics and Astronomy, Uppsala University, Uppsala, SE-75120, Sweden -- Palacz, M., Heavy Ion Laboratory, University of Warsaw, Pasteura 5A, Warsaw, PL 02-093, Poland -- Petrache, C.M., Centre de Sciences Nucléaires et Sciences de la Matière, CNRS/IN2P3, Université Paris-Saclay, Orsay, 91405, France -- Recchia, F., Dipartimento di Fisica e Astronomia, Università di Padova, Padova, Italy -- Sandzelius, M., University of Jyväskylä, Department of Physics, Jyväskylä, FI-40014, Finland -- Siciliano, M., Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di Legnaro, Legnaro, I-35020, Italy -- Timár, J., MTA Atomki, Debrecen, H-4001, Hungary -- Valiente-Dobón, J.J., Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di Legnaro, Legnaro, I-35020, Italy -- Xiao, Z.G., Department of Physics, Tsinghua University, Beijing, 100084, China, 0-Belirlenecek, 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), 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), 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
Physics ,Nuclear reaction ,Nuclear and High Energy Physics ,Angular momentum ,[PHYS.NUCL]Physics [physics]/Nuclear Theory [nucl-th] ,010308 nuclear & particles physics ,Hadron ,Elementary particle ,[PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex] ,7. Clean energy ,01 natural sciences ,Spectral line ,0-Belirlenecek ,Baryon ,Excited state ,0103 physical sciences ,Atomic physics ,010306 general physics ,Nucleon - Abstract
Lifetimes of high-spin states have been measured in the semi-magic (N= 50) nucleus 94Ru. Excited states in 94Ru were populated in the 58Ni(40Ca, 4p)94Ru* fusion-evaporation reaction at the Grand Accélérateur National d’Ions Lourds (GANIL) accelerator complex. DSAM lifetime analysis was performed on the Doppler broadened line shapes in energy spectra obtained from ?-rays emitted while the residual nuclei were slowing down in a thick 6mg/cm^2 metallic 58Ni target. In total eight excited-state lifetimes in the angular momentum range I= (13 - 20) ? have been measured, five of which were determined for the first time. The corresponding B(M1) and B(E2) reduced transition strengths are discussed within the framework of large-scale shell model calculations to study the contribution of different particle-hole configurations, in particular for analyzing contributions from core-excited configurations. © 2018, SIF, Springer-Verlag GmbH Germany, part of Springer Nature., National Brain Research Centre Vetenskapsrådet Göran Gustafssons Stiftelse för Naturvetenskaplig och Medicinsk Forskning Firat University Scientific Research Projects Management Unit Ministerio de Economía y Competitividad Science and Technology Facilities Council, We thank the operators of the GANIL cyclotrons for providing the beam, their cooperation and technical support. We would also like to thank the EXOGAM, DIAMANT and Neutron Wall Collaborations. This work was supported by the Swedish Research Council under Grant Nos. 621-2014-5558, 621-2012-3805, and 621-2013-4323 and the Göran Gustafsson foundation, the Scientific Research Projects Coordination Unit of Istanbul University Project No. 47886 and 48101, the UK STFC under grant number ST/L005727/1, the Spanish Ministerio de Economía y Competitividad under grant FPA2014-52823-C2-1-P and the program Severo Ochoa (SEV-2014-0398), the Polish National Research Centre contracts no. 2013/08/M/ST2 /00257 (LEA COPIGAL) and 2016/22/M/ST2/00269, the Scientific and Technological Council of Turkey (Proj. no. 114F473). BMN, IK, ZD and JT acknowledge the financial support of GINOP-2.3.3-15-2016-00034. IK was supported by National Research, Development and Innovation Office NK-FIH, contract number PD 124717. The computations were performed on resources provided by the Swedish National Infrastructure for Computing (SNIC) at PDC, KTH, Stockholm.
- Published
- 2018
32. Isospin Symmetry Breaking in Mirror Nuclei $^{23}$Mg$-$$^{23}$Na
- Author
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A. Boso, S.M. Lenzi, F. Recchia, J. Bonnard, S. Aydin, M.A. Bentley, B. Cederwall, E. Clement, G. De France, A. Di Nitto, A. Dijon, M. Doncel, F. Ghazi-Moradi, A. Gottardo, T. Henry, T. Hüyük, G. Jaworski, P.R. John, K. Juhász, I. Kuti, B. Melon, D. Mengoni, C. Michelagnoli, V. Modamio, D.R. Napoli, B.M. Nyakó, J. Nyberg, M. Palacz, J.J. Valiente-Dobón, Dipartimento di Fisica [Padova], Universita degli Studi di Padova, Aksaray University, 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), Boso, A., Lenzi, S. M., Recchia, F., Bonnard, J., Aydin, S., Bentley, M. A., Cederwall, B., Clement, E., De France, G., Di Nitto, A., Dijon, A., Doncel, M., Ghazi-Moradi, F., Gottardo, A., Henry, T., Huyu, T., Jaworski, G., John, P. R., Juhasz, K., Kuti, I., Melon, B., Mengoni, D., Michelagnoli, C., Modamio, V., Napoli, D. R., Nyako, B. M., Nyberg, J., Palacz, M., Valiente-Dobo, J. J., Sabire Yazıcı Fen Edebiyat Fakültesi, Di Nitto, Antonio -- 0000-0002-9319-366X, Cederwall, Bo -- 0000-0003-1771-2656, Huyuk, Tayfun -- 0000-0003-0597-9767, John, Philipp Rudolf -- 0000-0003-1994-7248, de France, Gilles -- 0000-0002-7439-1759, BOSO, ALBERTO -- 0000-0001-9670-8123, Clement, Emmanuel -- 0000-0003-1887-717X, GOTTARDO, Andrea -- 0000-0002-0390-5767, Napoli, Daniel R. -- 0000-0002-8154-6958, Università degli Studi di Padova = University of Padua (Unipd), 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
Physics ,Particle physics ,Rho meson ,Statistics::Applications ,Weak isospin ,010308 nuclear & particles physics ,Spontaneous symmetry breaking ,Physics::Medical Physics ,Nuclear Theory ,Nuclear structure ,General Physics and Astronomy ,[PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex] ,01 natural sciences ,Quantitative Biology::Cell Behavior ,13. Climate action ,Isospin ,0103 physical sciences ,Symmetry breaking ,Mirror nuclei ,010306 general physics ,Chiral symmetry breaking ,Nuclear Experiment - Abstract
Zakopane Conference on Nuclear Physics - Extremes of the Nuclear Landscape -- AUG 28-SEP 04, 2016 -- Zakopane, POLAND, WOS: 000398717500011, Mirror energy differences (MED) are a direct consequence of isospin symmetry breaking. Moreover, the study of MED has proved to give valuable information of several nuclear structure properties. We present the results of an experiment performed in GANIL to study the MED in mirror nuclei Mg-23-Na-23 up to high spin. The experimental values are compared with state-of-the-art shell model calculations. This permits to enlighten several nuclear structure properties, such as the way in which the nucleons alignment proceeds, the radius variation with J, the role of the spin-orbit interaction and the importance of isospin symmetry breaking terms of nuclear origin.
- Published
- 2016
33. Evidence for a spin-aligned neutron-proton paired phase from the level structure of (92)Pd
- Author
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Anton Khaplanov, J. Gal, Pär-Anders Söderström, B. M. Nyakó, E. Vardaci, H. Al-Azri, Pankaj S. Joshi, Tina Penick Brock, Karin Lagergren, E. Clément, P. J. Davies, Dóra Sohler, S. Bhattacharyya, Gábor Kalinka, R. Moro, Michael Taylor, F. Johnston-Theasby, Zs. Dombrádi, Roberto Liotta, K. Andgren, Torbjörn Bäck, A. Johnson, S. O. Kara, G. de Angelis, D. R. Napoli, Alejandro Algora, J. Blomqvist, A. Jungclaus, Chong Qi, A. Gadea, F. Recchia, Johan Nyberg, S. M. Lenzi, J. R. Brown, J. Timár, Bo Cederwall, G. La Rana, J. N. Scheurer, A. Di Nitto, Baharak Hadinia, J. Kownacki, S. Williams, M. Palacz, J. J. Valiente-Dobon, R. Julin, R. Wadsworth, A. Atac, Jozsef Molnar, B. S. Nara Singh, G. Sletten, F. Ghazi Moradi, M. Sandzelius, K. Juhasz, G. Jaworski, A. Dijon, A. Persson, 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), Excitations Nucléaires par Laser (ENL), Centre d'Etudes Nucléaires de Bordeaux Gradignan (CENBG), Université Sciences et Technologies - Bordeaux 1 (UB)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Sciences et Technologies - Bordeaux 1 (UB)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Cederwall, B., Ghazi Moradi, F., Bäck, T., Johnson, A., Blomqvist, J., Clément, E., de France, G., Wadsworth, R., Andgren, K., Lagergren, K., Dijon, A., Jaworski, G., Liotta, R., Qi, C., Nyakó, B. M., Nyberg, J., Palacz, M., Al Azri, H., Algora, A., de Angelis, G., Ataç, A., Bhattacharyya, S., Brock, T., Brown, J. R., Davies, P., Di Nitto, A., Dombrádi, Z. s., Gadea, A., Gál, J., Hadinia, B., Johnston Theasby, F., Joshi, P., Juhász, K., Julin, R., Jungclaus, A., Kalinka, G., Kara, S. O., Khaplanov, A., Kownacki, J., LA RANA, Giovanni, Lenzi, S. M., Molnár, J., Moro, RENATA EMILIA MARIA, Napoli, D. R., Nara Singh, B. S., Persson, A., Recchia, F., Sandzelius, M., Scheurer, J. N., Sletten, G., Sohler, D., Söderström, P. A., Taylor, M. J., Timár, J., Valiente Dobón, J. J., Vardaci, Emanuele, and Williams, S.
- Subjects
Nuclear Theory ,Proton ,[PHYS.NUCL]Physics [physics]/Nuclear Theory [nucl-th] ,FOS: Physical sciences ,[PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex] ,pairing ,Nuclear Theory (nucl-th) ,Magic number (programming) ,spin-alignement ,Physics::Atomic and Molecular Clusters ,Nuclear force ,Neutron ,Nuclear structure ,Nuclear Experiment (nucl-ex) ,Spin (physics) ,Nuclear Experiment ,Physics ,Multidisciplinary ,ta114 ,Nuclear shell model ,Atomic nucleus ,Física nuclear ,Atomic physics - Abstract
4 páginas, 4 figuras.-- El Pdf es la versión pre-print.-- et al., Shell structure and magic numbers in atomic nuclei were generally explained by pioneering work that introduced a strong spin–orbit interaction to the nuclear shell model potential. However, knowledge of nuclear forces and the mechanisms governing the structure of nuclei, in particular far from stability, is still incomplete. In nuclei with equal neutron and proton numbers (N = Z), enhanced correlations arise between neutrons and protons (two distinct types of fermions) that occupy orbitals with the same quantum numbers. Such correlations have been predicted to favour an unusual type of nuclear superfluidity, termed isoscalar neutron–proton pairing, in addition to normal isovector pairing. Despite many experimental efforts, these predictions have not been confirmed. Here we report the experimental observation of excited states in the N = Z = 46 nucleus 92Pd. Gamma rays emitted following the 58Ni(36Ar,2n)92Pd fusion–evaporation reaction were identified using a combination of state-of-the-art high-resolution γ-ray, charged-particle and neutron detector systems. Our results reveal evidence for a spin-aligned, isoscalar neutron–proton coupling scheme, different from the previous prediction. We suggest that this coupling scheme replaces normal superfluidity (characterized by seniority coupling) in the ground and low-lying excited states of the heaviest N = Z nuclei. Such strong, isoscalar neutron–proton correlations would have a considerable impact on the nuclear level structure and possibly influence the dynamics of rapid proton capture in stellar nucleosynthesis., This work was supported by the Swedish Research Council (contract nos 2007-4067 and 2008-5793), the Göran Gustafsson Foundation, the European Union Sixth Framework Programme ‘Integrating Infrastructure Initiative – Transnational Access’ (no. 506065; EURONS), the Hungarian Scientific Research Fund, OTKA (contract nos. K72566 and K68801), the UK Science and Technology Facilities Council (STFC), the Polish Ministry of Science and Higher Education (grant no. N N202 073935), the Spanish Ministerio de Ciencia e Innovación (contract no. FPA2007-66069), the Spanish Consolider-Ingenio 2010 Programme CPAN (CSD2007-00042), and Ankara University BIYEP project no. DPT 2005120140.
- Published
- 2011
34. Neutron Skin Effects in Mirror Energy Differences: The Case of ^{23}Mg-^{23}Na.
- Author
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Boso A, Lenzi SM, Recchia F, Bonnard J, Zuker AP, Aydin S, Bentley MA, Cederwall B, Clement E, de France G, Di Nitto A, Dijon A, Doncel M, Ghazi-Moradi F, Gadea A, Gottardo A, Henry T, Hüyük T, Jaworski G, John PR, Juhász K, Kuti I, Melon B, Mengoni D, Michelagnoli C, Modamio V, Napoli DR, Nyakó BM, Nyberg J, Palacz M, Timár J, and Valiente-Dobón JJ
- Abstract
Energy differences between analogue states in the T=1/2 ^{23}Mg-^{23}Na mirror nuclei have been measured along the rotational yrast bands. This allows us to search for effects arising from isospin-symmetry-breaking interactions (ISB) and/or shape changes. Data are interpreted in the shell model framework following the method successfully applied to nuclei in the f_{7/2} shell. It is shown that the introduction of a schematic ISB interaction of the same type of that used in the f_{7/2} shell is needed to reproduce the data. An alternative novel description, applied here for the first time, relies on the use of an effective interaction deduced from a realistic charge-dependent chiral nucleon-nucleon potential. This analysis provides two important results: (i) The mirror energy differences give direct insight into the nuclear skin; (ii) the skin changes along the rotational bands are strongly correlated with the difference between the neutron and proton occupations of the s_{1/2} "halo" orbit.
- Published
- 2018
- Full Text
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