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5 results on '"Herzaáň, A."'

1. Spectroscopy of Kr70 and isospin symmetry in the T=1 fpg shell nuclei

Author

E. Sahin, H. Badran, Jari Partanen, Janne Pakarinen, W. Korten, D. M. Debenham, C. Scholey, Matti Leino, Joonas Konki, Panu Ruotsalainen, A.d Herzaáň, P. J. Davies, D. G. Jenkins, Rauno Julin, Philippos Papadakis, Jack Henderson, Gavin Lotay, S. Juutinen, T.a Haylett, P. Peura, Kalle Auranen, P.d Greenlees, Ulrika Jakobsson, Juha Sorri, L. Sinclair, Mikael Sandzelius, P. Joshi, M Mallaburn, H. M. David, Sanna Stolze, G. de Angelis, K.c Kaneko, R. Wadsworth, Tuomas Grahn, Juha Uusitalo, Panu Rahkila, Jan Sarén, and M. A. Bentley

Subjects
Physics, 010308 nuclear & particles physics, Shell (structure), Space (mathematics), 01 natural sciences, Symmetry (physics), Nuclear physics, medicine.anatomical_structure, Isospin, 0103 physical sciences, Isobar, medicine, Atomic physics, 010306 general physics, Spin (physics), Spectroscopy, Nucleus
Abstract

The recoil-β tagging technique has been used in conjunction with the 40 Ca(32 S ,2n) reaction at a beam energy of 88 MeV to identify transitions associated with the decay of the 2 + and, tentatively, 4 + states in the nucleus 70 Kr. These data are used, along with previously published data, to examine the triplet energy differences (TED) for the mass 70 isobars. The experimental TED values are compared with shell model calculations, performed with the JUN45 interaction in the fpg model space, that include a J = 0 isospin nonconserving (INC) interaction with an isotensor strength of 100 keV. The agreement is found to be very good up to spin 4 and supports the expectation for analog states that all three nuclei have the same oblate shape at low-spin. The A = 70 results are compared with the experimental and shell model predicted TED and mirror energy differences (MED) for the mass 66 and 74 systems. The comparisons clearly demonstrate the importance of the isotensor INC interaction in replicating the TED data in this region. Issues related to the observed MED values and their interpretation within the shell model are discussed.

Published
2016
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2. Spectroscopy of Kr 70 and isospin symmetry in the T=1 fpg shell nuclei SPECTROSCOPY of Kr 70 and ISOSPIN SYMMETRY ... D. M. DEBENHAM et al

Author

Debenham, D. M., Bentley, M. A., Davies, P. J., Haylett, T., Jenkins, D. G., Joshi, P., Sinclair, L. F., Wadsworth, R., Ruotsalainen, P., Henderson, J., Kaneko, K., Auranen, K., Badran, H., Grahn, T., Greenlees, P., Herzaáň, A., Jakobsson, U., Konki, J., Julin, R., Juutinen, S., Leino, M., Sorri, J., Pakarinen, J., Papadakis, P., Peura, P., Partanen, J., Rahkila, P., Sandzelius, M., Sarén, J., Scholey, C., Stolze, S., Uusitalo, J., David, H. M., De Angelis, G., Korten, W., Lotay, G., Mallaburn, M., and Sahin, E.

Abstract

The recoil-β tagging technique has been used in conjunction with the Ca40(S32,2n) reaction at a beam energy of 88 MeV to identify transitions associated with the decay of the 2+ and, tentatively, 4+ states in the nucleus Kr70. These data are used, along with previously published data, to examine the triplet energy differences (TED) for the mass 70 isobars. The experimental TED values are compared with shell model calculations, performed with the JUN45 interaction in the fpg model space, that include a J=0 isospin nonconserving (INC) interaction with an isotensor strength of 100 keV. The agreement is found to be very good up to spin 4 and supports the expectation for analog states that all three nuclei have the same oblate shape at low-spin. The A=70 results are compared with the experimental and shell model predicted TED and mirror energy differences (MED) for the mass 66 and 74 systems. The comparisons clearly demonstrate the importance of the isotensor INC interaction in replicating the TED data in this region. Issues related to the observed MED values and their interpretation within the shell model are discussed.

Published
2016

3. Spectroscopy of 70Kr and isospin symmetry in the T = 1 f pg shell nuclei

Author

Debenham, M, Bentley, M, Davies, J, Haylett, H, Jenkins, G, Joshi, P., Sinclair, L, Wadsworth, R, Ruotsalainen, P, Henderson, J., Kaneko, K, Auranen, K., Badran, H, Grahn, T., Greenlees, P., Herzaáň, A., Jakobsson, U., Konki, J, Julin, R., Juutinen, S., Leino, M, Sorri, J, Pakarinen, J, Papadakis, P, Peura, P, Partanen, J, Rahkila, P, Sandzelius, M, Sarén, J, Scholey, C., Stolze, S, Uusitalo, J, David, H.M., De Angelis, G, Korten, W., Lotay, G, Mallaburn, M, Sahin, Evren, University of York [York, UK], Department of Physics [Jyväskylä Univ] (JYU), University of Jyväskylä (JYU), Department of Physics, Kyushu Sangyo University, Argonne National Laboratory [Lemont] (ANL), INFN Laboratori Nazionali di Legnaro, Département de Physique Nucléaire (ex SPhN) (DPHN), Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Department of Physics, University of Surrey, Guildford, School of Physics and Astronomy [Manchester], University of Manchester [Manchester], Department of Physics [Oslo], Faculty of Mathematics and Natural Sciences [Oslo], University of Oslo (UiO)-University of Oslo (UiO), GAMMAPOOL European Spectroscopy Resource for the loan of the detectors for the JUROGAM II array., European Project: 262010,EC:FP7:INFRA,FP7-INFRASTRUCTURES-2010-1,ENSAR(2010), and University of Surrey (UNIS)

Subjects
nuclear shell models, isospin symmetry, nuclear structure, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], krypton
Abstract

International audience; The recoil-β tagging technique has been used in conjunction with the 40 Ca(32 S ,2n) reaction at a beam energy of 88 MeV to identify transitions associated with the decay of the 2 + and, tentatively, 4 + states in the nucleus 70 Kr. These data are used, along with previously published data, to examine the triplet energy differences (TED) for the mass 70 isobars. The experimental TED values are compared with shell model calculations, performed with the JUN45 interaction in the fpg model space, that include a J = 0 isospin nonconserving (INC) interaction with an isotensor strength of 100 keV. The agreement is found to be very good up to spin 4 and supports the expectation for analog states that all three nuclei have the same oblate shape at low-spin. The A = 70 results are compared with the experimental and shell model predicted TED and mirror energy differences (MED) for the mass 66 and 74 systems. The comparisons clearly demonstrate the importance of the isotensor INC interaction in replicating the TED data in this region. Issues related to the observed MED values and their interpretation within the shell model are discussed.

Published
2016
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4. Spectroscopy of Kr70 and isospin symmetry in the T=1 fpg shell nuclei

Author

Debenham, D. M., primary, Bentley, M. A., additional, Davies, P. J., additional, Haylett, T., additional, Jenkins, D. G., additional, Joshi, P., additional, Sinclair, L. F., additional, Wadsworth, R., additional, Ruotsalainen, P., additional, Henderson, J., additional, Kaneko, K., additional, Auranen, K., additional, Badran, H., additional, Grahn, T., additional, Greenlees, P., additional, Herzaáň, A., additional, Jakobsson, U., additional, Konki, J., additional, Julin, R., additional, Juutinen, S., additional, Leino, M., additional, Sorri, J., additional, Pakarinen, J., additional, Papadakis, P., additional, Peura, P., additional, Partanen, J., additional, Rahkila, P., additional, Sandzelius, M., additional, Sarén, J., additional, Scholey, C., additional, Stolze, S., additional, Uusitalo, J., additional, David, H. M., additional, de Angelis, G., additional, Korten, W., additional, Lotay, G., additional, Mallaburn, M., additional, and Sahin, E., additional

Published
2016
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5. Spectroscopy of 70Kr and isospin symmetry in the T = 1 fpg shell nuclei.

Author

Debenham, D. M., Bentley, M. A., Davies, P. J., Haylett, T., Jenkins, D. G., Joshi, P., Sinclair, L. F., Wadsworth, R., Ruotsalainen, P., Henderson, J., Kaneko, K., Auranen, K., Badran, H., Grahn, T., Greenlees, P., Herzaáň, A., Jakobsson, U., Konki, J., Julin, R., and Juutinen, S.

Subjects
*ISOBARIC spin, *KRYPTON isotopes, *SPECTRUM analysis
Abstract

The recoil-β tagging technique has been used in conjunction with the 40Ca(32S,2n) reaction at a beam energy of 88 MeV to identify transitions associated with the decay of the 2+ and, tentatively, 4+ states in the nucleus 70Kr. These data are used, along with previously published data, to examine the triplet energy differences (TED) for the mass 70 isobars. The experimental TED values are compared with shell model calculations, performed with the JUN45 interaction in the fpg model space, that include a J=0 isospin nonconserving (INC) interaction with an isotensor strength of 100 keV. The agreement is found to be very good up to spin 4 and supports the expectation for analog states that all three nuclei have the same oblate shape at low-spin. The A=70 results are compared with the experimental and shell model predicted TED and mirror energy differences (MED) for the mass 66 and 74 systems. The comparisons clearly demonstrate the importance of the isotensor INC interaction in replicating the TED data in this region. Issues related to the observed MED values and their interpretation within the shell model are discussed. [ABSTRACT FROM AUTHOR]

Published
2016
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