Single-particle Behavior at N=126: Isomeric Decays in Neutron-rich 204Pt

S. J. Steer; Zs. Podolyak; S. Pietri; M. Gorska; P. H. Regan; Dirk Rudolph; E. Werner-Malento; A. B. Garnsworthy; Robert Hoischen; J. Gerl; H. J. Wollersheim; K. H. Maier; H. Grawe; F. Becker; P. Bednarczyk; L. Caceres; P. Doornenbal; H. Geissel; J. Greabosz; A. Kelic; I. Kojouharov; N. Kurz; F. Montes; W. Prokopowicz; T. Saito; H. Schaffner; S. Tashenov; A. Heinz; M. Pfuetzner; T. Kurtukian-Nieto; G. Benzoni; A. Jungclaus; D. L. Balabanski; C. Brandau; B. 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; O. Wieland

doi:10.1103/PhysRevC.78.061302

Single-particle Behavior at N=126: Isomeric Decays in Neutron-rich 204Pt

S. J. Steer, Zs. Podolyak, S. Pietri, M. Gorska, P. H. Regan, Dirk Rudolph, E. Werner-Malento, A. B. Garnsworthy, Robert Hoischen, J. Gerl, H. J. Wollersheim, K. H. Maier, H. Grawe, F. Becker, P. Bednarczyk, L. Caceres, P. Doornenbal, H. Geissel, J. Greabosz, A. KelicI. Kojouharov, N. Kurz, F. Montes, W. Prokopowicz, T. Saito, H. Schaffner, S. Tashenov, A. Heinz, M. Pfuetzner, T. Kurtukian-Nieto, G. Benzoni, A. Jungclaus, D. L. Balabanski, C. Brandau, B. 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, O. Wieland

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Abstract

The four proton-hole nucleus Pt-204 was populated in the fragmentation of an E/A = 1 GeV Pb-208 beam. The yrast structure of Pt-204 has been observed up to angular momentum I = 10h by detecting delayed gamma-ray transitions originating from metastable states. These long-lived excited states have been identified to have spin-parities of I-pi = (10(+)), (7(-)), and (5(-)) and half-lives of T-1/2 = 146(14) ns, 55(3) mu s, and 5.5(7) mu s, respectively. The structure of the magic N = 126 Pt-204 nucleus is discussed and understood in terms of the spherical shell model. The data suggest a revision of the two-body interaction for N = 126, Z < 82, which determines the evolution of nuclear structure toward the r-process waiting point nuclei.

Original language	English
Article number	061302(R)
Journal	Physical Review C (Nuclear Physics)
Volume	78
Issue number	6
DOIs	https://doi.org/10.1103/PhysRevC.78.061302
Publication status	Published - 2008

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Subatomic Physics

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10.1103/PhysRevC.78.061302

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Steer, S. J., Podolyak, Z., Pietri, S., Gorska, M., Regan, P. H., Rudolph, D., Werner-Malento, E., Garnsworthy, A. B., Hoischen, R., Gerl, J., Wollersheim, H. J., Maier, K. H., Grawe, H., Becker, F., Bednarczyk, P., Caceres, L., Doornenbal, P., Geissel, H., Greabosz, J., ... Wieland, O. (2008). Single-particle Behavior at N=126: Isomeric Decays in Neutron-rich 204Pt. Physical Review C (Nuclear Physics), 78(6), Article 061302(R). https://doi.org/10.1103/PhysRevC.78.061302

@article{9f520662da9b462a86d58a44bf64aa5a,

title = "Single-particle Behavior at N=126: Isomeric Decays in Neutron-rich 204Pt",

abstract = "The four proton-hole nucleus Pt-204 was populated in the fragmentation of an E/A = 1 GeV Pb-208 beam. The yrast structure of Pt-204 has been observed up to angular momentum I = 10h by detecting delayed gamma-ray transitions originating from metastable states. These long-lived excited states have been identified to have spin-parities of I-pi = (10(+)), (7(-)), and (5(-)) and half-lives of T-1/2 = 146(14) ns, 55(3) mu s, and 5.5(7) mu s, respectively. The structure of the magic N = 126 Pt-204 nucleus is discussed and understood in terms of the spherical shell model. The data suggest a revision of the two-body interaction for N = 126, Z < 82, which determines the evolution of nuclear structure toward the r-process waiting point nuclei.",

author = "Steer, {S. J.} and Zs. Podolyak and S. Pietri and M. Gorska and Regan, {P. H.} and Dirk Rudolph and E. Werner-Malento and Garnsworthy, {A. B.} and Robert Hoischen and J. Gerl and Wollersheim, {H. J.} and Maier, {K. H.} and H. Grawe and F. Becker and P. Bednarczyk and L. Caceres and P. Doornenbal and H. Geissel and J. Greabosz and A. Kelic and I. Kojouharov and N. Kurz and F. Montes and W. Prokopowicz 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 C. Brandau and Brown, {B. A.} 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 O. Wieland",

year = "2008",

doi = "10.1103/PhysRevC.78.061302",

language = "English",

volume = "78",

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

issn = "0556-2813",

publisher = "American Physical Society",

number = "6",

}

Steer, SJ, Podolyak, Z, Pietri, S, Gorska, M, Regan, PH, Rudolph, D, Werner-Malento, E, Garnsworthy, AB, Hoischen, R, Gerl, J, Wollersheim, HJ, Maier, KH, Grawe, H, Becker, F, Bednarczyk, P, Caceres, L, Doornenbal, P, Geissel, H, Greabosz, J, Kelic, A, Kojouharov, I, Kurz, N, Montes, F, Prokopowicz, W, Saito, T, Schaffner, H, Tashenov, S, Heinz, A, Pfuetzner, M, Kurtukian-Nieto, T, Benzoni, G, Jungclaus, A, Balabanski, DL, Brandau, C, Brown, BA, 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 & Wieland, O 2008, 'Single-particle Behavior at N=126: Isomeric Decays in Neutron-rich 204Pt', Physical Review C (Nuclear Physics), vol. 78, no. 6, 061302(R). https://doi.org/10.1103/PhysRevC.78.061302

TY - JOUR

T1 - Single-particle Behavior at N=126: Isomeric Decays in Neutron-rich 204Pt

AU - Steer, S. J.

AU - Podolyak, Zs.

AU - Pietri, S.

AU - Gorska, M.

AU - Regan, P. H.

AU - Rudolph, Dirk

AU - Werner-Malento, E.

AU - Garnsworthy, A. B.

AU - Hoischen, Robert

AU - Gerl, J.

AU - Wollersheim, H. J.

AU - Maier, K. H.

AU - Grawe, H.

AU - Becker, F.

AU - Bednarczyk, P.

AU - Caceres, L.

AU - Doornenbal, P.

AU - Geissel, H.

AU - Greabosz, J.

AU - Kelic, A.

AU - Kojouharov, I.

AU - Kurz, N.

AU - Montes, F.

AU - Prokopowicz, 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 - Brandau, C.

AU - Brown, B. 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 - Wieland, O.

PY - 2008

Y1 - 2008

N2 - The four proton-hole nucleus Pt-204 was populated in the fragmentation of an E/A = 1 GeV Pb-208 beam. The yrast structure of Pt-204 has been observed up to angular momentum I = 10h by detecting delayed gamma-ray transitions originating from metastable states. These long-lived excited states have been identified to have spin-parities of I-pi = (10(+)), (7(-)), and (5(-)) and half-lives of T-1/2 = 146(14) ns, 55(3) mu s, and 5.5(7) mu s, respectively. The structure of the magic N = 126 Pt-204 nucleus is discussed and understood in terms of the spherical shell model. The data suggest a revision of the two-body interaction for N = 126, Z < 82, which determines the evolution of nuclear structure toward the r-process waiting point nuclei.

AB - The four proton-hole nucleus Pt-204 was populated in the fragmentation of an E/A = 1 GeV Pb-208 beam. The yrast structure of Pt-204 has been observed up to angular momentum I = 10h by detecting delayed gamma-ray transitions originating from metastable states. These long-lived excited states have been identified to have spin-parities of I-pi = (10(+)), (7(-)), and (5(-)) and half-lives of T-1/2 = 146(14) ns, 55(3) mu s, and 5.5(7) mu s, respectively. The structure of the magic N = 126 Pt-204 nucleus is discussed and understood in terms of the spherical shell model. The data suggest a revision of the two-body interaction for N = 126, Z < 82, which determines the evolution of nuclear structure toward the r-process waiting point nuclei.

U2 - 10.1103/PhysRevC.78.061302

DO - 10.1103/PhysRevC.78.061302

M3 - Article

SN - 0556-2813

VL - 78

JO - Physical Review C (Nuclear Physics)

JF - Physical Review C (Nuclear Physics)

IS - 6

M1 - 061302(R)

ER -

Single-particle Behavior at N=126: Isomeric Decays in Neutron-rich 204Pt

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