Isomeric States Observed in Heavy Neutron-rich Nuclei Populated in the Fragmentation of a 208Pb Beam

S. J. Steer; Zs. Podolyak; S. Pietri; M. Gorska; H. Grawe; K. H. Maier; P. H. Regan; Dirk Rudolph; A. B. Garnsworthy; Robert Hoischen; J. Gerl; H. J. Wollersheim; F. Becker; P. Bednarczyk; L. Caceres; P. Doornenbal; H. Geissel; J. Grebosz; A. Kelic; I. Kojouharov; N. Kurz; F. Montes; W. Prokopwicz; T. Saito; H. Schaffner; S. Tashenov; A. Heinz; M. Pfuetzner; T. Kurtukian-Nieto; G. Benzoni; A. Jungclaus; D. L. Balabanski; M. Bowry; C. Brandau; A. Brown; A. M. Bruce; W. N. Catford; I. J. Cullen; Zs. Dombradi; M. E. Estevez; W. Gelletly; G. Ilie; J. Jolie; G. A. Jones; M. Kmiecik; F. G. Kondev; R. Kruecken; S. Lalkovski; Z. Liu; A. Maj; S. Myalski; S. Schwertel; T. Shizuma; P. M. Walker; E. Werner-Malento; O. Wieland

doi:10.1103/PhysRevC.84.044313

Isomeric States Observed in Heavy Neutron-rich Nuclei Populated in the Fragmentation of a 208Pb Beam

S. J. Steer, Zs. Podolyak, S. Pietri, M. Gorska, H. Grawe, K. H. Maier, P. H. Regan, Dirk Rudolph, A. B. Garnsworthy, Robert Hoischen, J. Gerl, H. J. Wollersheim, F. Becker, P. Bednarczyk, L. Caceres, P. Doornenbal, H. Geissel, J. Grebosz, A. Kelic, I. KojouharovN. Kurz, F. Montes, W. Prokopwicz, T. Saito, H. Schaffner, S. Tashenov, A. Heinz, M. Pfuetzner, T. Kurtukian-Nieto, G. Benzoni, A. Jungclaus, D. L. Balabanski, M. Bowry, C. Brandau, A. Brown, A. M. Bruce, W. N. Catford, I. J. Cullen, Zs. Dombradi, M. E. Estevez, W. Gelletly, G. Ilie, J. Jolie, G. A. Jones, M. Kmiecik, F. G. Kondev, R. Kruecken, S. Lalkovski, Z. Liu, A. Maj, S. Myalski, S. Schwertel, T. Shizuma, P. M. Walker, E. Werner-Malento, O. Wieland

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Abstract

Heavy neutron-rich nuclei were populated via the fragmentation of a E/A = 1 GeV Pb-208(82) beam. Secondary fragments were separated and identified and subsequently implanted in a passive stopper. By the detection of delayed gamma rays, isomeric decays associated with these nuclei have been identified. A total of 49 isomers were detected, with the majority of them observed for the first time. The newly discovered isomers are in Hg-204,205(80), Au-201,202,204,205(79), Pt-197,203,204(78), Ir-195,199-203(77), Os-193,197-199(76), Re-196(75), W-190,191(74), and Ta-189(73). Possible level schemes are constructed and the structure of the nuclei discussed. To aid the interpretation, shell-model as well as BCS calculations were performed.

Original language	English
Article number	044313
Journal	Physical Review C (Nuclear Physics)
Volume	84
Issue number	4
DOIs	https://doi.org/10.1103/PhysRevC.84.044313
Publication status	Published - 2011

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Subatomic Physics

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Steer2011-e044313

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Steer, S. J., Podolyak, Z., Pietri, S., Gorska, M., Grawe, H., Maier, K. H., Regan, P. H., Rudolph, D., Garnsworthy, A. B., Hoischen, R., Gerl, J., Wollersheim, H. J., Becker, F., Bednarczyk, P., Caceres, L., Doornenbal, P., Geissel, H., Grebosz, J., Kelic, A., ... Wieland, O. (2011). Isomeric States Observed in Heavy Neutron-rich Nuclei Populated in the Fragmentation of a 208Pb Beam. Physical Review C (Nuclear Physics), 84(4), Article 044313. https://doi.org/10.1103/PhysRevC.84.044313

@article{e8355d200a4a48a98ae4a9887a62e5f8,

title = "Isomeric States Observed in Heavy Neutron-rich Nuclei Populated in the Fragmentation of a 208Pb Beam",

abstract = "Heavy neutron-rich nuclei were populated via the fragmentation of a E/A = 1 GeV Pb-208(82) beam. Secondary fragments were separated and identified and subsequently implanted in a passive stopper. By the detection of delayed gamma rays, isomeric decays associated with these nuclei have been identified. A total of 49 isomers were detected, with the majority of them observed for the first time. The newly discovered isomers are in Hg-204,205(80), Au-201,202,204,205(79), Pt-197,203,204(78), Ir-195,199-203(77), Os-193,197-199(76), Re-196(75), W-190,191(74), and Ta-189(73). Possible level schemes are constructed and the structure of the nuclei discussed. To aid the interpretation, shell-model as well as BCS calculations were performed.",

author = "Steer, {S. J.} and Zs. Podolyak and S. Pietri and M. Gorska and H. Grawe and Maier, {K. H.} and Regan, {P. H.} and Dirk Rudolph and Garnsworthy, {A. B.} and Robert Hoischen and J. Gerl and Wollersheim, {H. J.} and F. Becker and P. Bednarczyk and L. Caceres and P. Doornenbal and H. Geissel and J. Grebosz and A. Kelic and I. Kojouharov and N. Kurz and F. Montes and W. Prokopwicz and T. Saito and H. Schaffner and S. Tashenov and A. Heinz and M. Pfuetzner and T. Kurtukian-Nieto and G. Benzoni and A. Jungclaus and Balabanski, {D. L.} and M. Bowry and C. Brandau and A. Brown and Bruce, {A. M.} and Catford, {W. N.} and Cullen, {I. J.} and Zs. Dombradi and Estevez, {M. E.} and W. Gelletly and G. Ilie and J. Jolie and Jones, {G. A.} and M. Kmiecik and Kondev, {F. G.} and R. Kruecken and S. Lalkovski and Z. Liu and A. Maj and S. Myalski and S. Schwertel and T. Shizuma and Walker, {P. M.} and E. Werner-Malento and O. Wieland",

year = "2011",

doi = "10.1103/PhysRevC.84.044313",

language = "English",

volume = "84",

journal = "Physical Review C (Nuclear Physics)",

issn = "0556-2813",

publisher = "American Physical Society",

number = "4",

}

Steer, SJ, Podolyak, Z, Pietri, S, Gorska, M, Grawe, H, Maier, KH, Regan, PH, Rudolph, D, Garnsworthy, AB, Hoischen, R, Gerl, J, Wollersheim, HJ, Becker, F, Bednarczyk, P, Caceres, L, Doornenbal, P, Geissel, H, Grebosz, J, Kelic, A, Kojouharov, I, Kurz, N, Montes, F, Prokopwicz, W, Saito, T, Schaffner, H, Tashenov, S, Heinz, A, Pfuetzner, M, Kurtukian-Nieto, T, Benzoni, G, Jungclaus, A, Balabanski, DL, Bowry, M, Brandau, C, Brown, A, Bruce, AM, Catford, WN, Cullen, IJ, Dombradi, Z, Estevez, ME, Gelletly, W, Ilie, G, Jolie, J, Jones, GA, Kmiecik, M, Kondev, FG, Kruecken, R, Lalkovski, S, Liu, Z, Maj, A, Myalski, S, Schwertel, S, Shizuma, T, Walker, PM, Werner-Malento, E & Wieland, O 2011, 'Isomeric States Observed in Heavy Neutron-rich Nuclei Populated in the Fragmentation of a 208Pb Beam', Physical Review C (Nuclear Physics), vol. 84, no. 4, 044313. https://doi.org/10.1103/PhysRevC.84.044313

TY - JOUR

T1 - Isomeric States Observed in Heavy Neutron-rich Nuclei Populated in the Fragmentation of a 208Pb Beam

AU - Steer, S. J.

AU - Podolyak, Zs.

AU - Pietri, S.

AU - Gorska, M.

AU - Grawe, H.

AU - Maier, K. H.

AU - Regan, P. H.

AU - Rudolph, Dirk

AU - Garnsworthy, A. B.

AU - Hoischen, Robert

AU - Gerl, J.

AU - Wollersheim, H. J.

AU - Becker, F.

AU - Bednarczyk, P.

AU - Caceres, L.

AU - Doornenbal, P.

AU - Geissel, H.

AU - Grebosz, J.

AU - Kelic, A.

AU - Kojouharov, I.

AU - Kurz, N.

AU - Montes, F.

AU - Prokopwicz, W.

AU - Saito, T.

AU - Schaffner, H.

AU - Tashenov, S.

AU - Heinz, A.

AU - Pfuetzner, M.

AU - Kurtukian-Nieto, T.

AU - Benzoni, G.

AU - Jungclaus, A.

AU - Balabanski, D. L.

AU - Bowry, M.

AU - Brandau, C.

AU - Brown, A.

AU - Bruce, A. M.

AU - Catford, W. N.

AU - Cullen, I. J.

AU - Dombradi, Zs.

AU - Estevez, M. E.

AU - Gelletly, W.

AU - Ilie, G.

AU - Jolie, J.

AU - Jones, G. A.

AU - Kmiecik, M.

AU - Kondev, F. G.

AU - Kruecken, R.

AU - Lalkovski, S.

AU - Liu, Z.

AU - Maj, A.

AU - Myalski, S.

AU - Schwertel, S.

AU - Shizuma, T.

AU - Walker, P. M.

AU - Werner-Malento, E.

AU - Wieland, O.

PY - 2011

Y1 - 2011

N2 - Heavy neutron-rich nuclei were populated via the fragmentation of a E/A = 1 GeV Pb-208(82) beam. Secondary fragments were separated and identified and subsequently implanted in a passive stopper. By the detection of delayed gamma rays, isomeric decays associated with these nuclei have been identified. A total of 49 isomers were detected, with the majority of them observed for the first time. The newly discovered isomers are in Hg-204,205(80), Au-201,202,204,205(79), Pt-197,203,204(78), Ir-195,199-203(77), Os-193,197-199(76), Re-196(75), W-190,191(74), and Ta-189(73). Possible level schemes are constructed and the structure of the nuclei discussed. To aid the interpretation, shell-model as well as BCS calculations were performed.

AB - Heavy neutron-rich nuclei were populated via the fragmentation of a E/A = 1 GeV Pb-208(82) beam. Secondary fragments were separated and identified and subsequently implanted in a passive stopper. By the detection of delayed gamma rays, isomeric decays associated with these nuclei have been identified. A total of 49 isomers were detected, with the majority of them observed for the first time. The newly discovered isomers are in Hg-204,205(80), Au-201,202,204,205(79), Pt-197,203,204(78), Ir-195,199-203(77), Os-193,197-199(76), Re-196(75), W-190,191(74), and Ta-189(73). Possible level schemes are constructed and the structure of the nuclei discussed. To aid the interpretation, shell-model as well as BCS calculations were performed.

U2 - 10.1103/PhysRevC.84.044313

DO - 10.1103/PhysRevC.84.044313

M3 - Article

SN - 0556-2813

VL - 84

JO - Physical Review C (Nuclear Physics)

JF - Physical Review C (Nuclear Physics)

IS - 4

M1 - 044313

ER -

Isomeric States Observed in Heavy Neutron-rich Nuclei Populated in the Fragmentation of a 208Pb Beam

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