Spectroscopy along flerovium decay chains. II. Fine structure in odd-A 289Fl

D. M. Cox; A. Såmark-Roth; D. Rudolph; L. G. Sarmiento; R. M. Clark; J. L. Egido; P. Golubev; J. Heery; A. Yakushev; S. Åberg; H. M. Albers; M. Albertsson; M. Block; H. Brand; T. Calverley; R. Cantemir; B. G. Carlsson; Ch. E. Düllmann; J. Eberth; C. Fahlander; U. Forsberg; J. M. Gates; F. Giacoppo; M. Götz; S. Götz; R.-D. Herzberg; Y. Hrabar; E. Jäger; D. Judson; J. Khuyagbaatar; B. Kindler; I. Kojouharov; J. V. Kratz; J. Krier; N. Kurz; L. Lens; J. Ljungberg; B. Lommel; J. Louko; C.-C. Meyer; A. Mistry; C. Mokry; P. Papadakis; E. Parr; J. L. Pore; I. Ragnarsson; J. Runke; M. Schädel; H. Schaffner; B. Schausten; D. A. Shaughnessy; P. Thörle-Pospiech; N. Trautmann; J. Uusitalo

doi:10.1103/PhysRevC.107.L021301

Spectroscopy along flerovium decay chains. II. Fine structure in odd-A ²⁸⁹Fl

D. M. Cox, A. Såmark-Roth, D. Rudolph, L. G. Sarmiento, R. M. Clark, J. L. Egido, P. Golubev, J. Heery, A. Yakushev, S. Åberg, H. M. Albers, M. Albertsson, M. Block, H. Brand, T. Calverley, R. Cantemir, B. G. Carlsson, Ch. E. Düllmann, J. Eberth, C. FahlanderU. Forsberg, J. M. Gates, F. Giacoppo, M. Götz, S. Götz, R.-D. Herzberg, Y. Hrabar, E. Jäger, D. Judson, J. Khuyagbaatar, B. Kindler, I. Kojouharov, J. V. Kratz, J. Krier, N. Kurz, L. Lens, J. Ljungberg, B. Lommel, J. Louko, C.-C. Meyer, A. Mistry, C. Mokry, P. Papadakis, E. Parr, J. L. Pore, I. Ragnarsson, J. Runke, M. Schädel, H. Schaffner, B. Schausten, D. A. Shaughnessy, P. Thörle-Pospiech, N. Trautmann, J. Uusitalo

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Fifteen correlated α-decay chains starting from the odd-A superheavy nucleus ²⁸⁹Fl were observed following the fusion-evaporation reaction ⁴⁸Ca+²⁴⁴Pu. The results call for at least two parallel α-decay sequences starting from at least two different states of ²⁸⁹Fl. This implies that close-lying levels in nuclei along these chains have quite different spin-parity assignments. Further, observed α-electron and α-photon coincidences, as well as the α-decay fine structure along the decay chains, suggest a change in the ground-state spin assignment between ²⁸⁵Cn and ²⁸¹Ds. Our experimental results, on the excited level structure of the heaviest odd-N nuclei to date, provide a direct testing ground for theory. This is illustrated by comparison with new nuclear structure calculations based on the symmetry-conserving configuration mixing theory.

Originalspråk	engelska
Artikelnummer	L021301
Antal sidor	6
Tidskrift	Physical Review C
Volym	107
Nummer	2
DOI	https://doi.org/10.1103/PhysRevC.107.L021301
Status	Published - 2023 feb. 6

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6 Artikel i vetenskaplig tidskrift
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Role of quasiparticle structure in α decay of superheavy nuclei
Clark, R. M. & Rudolph, D., 2023 mars 31, I: Physical Review C. 107, 3, 11 s., 034321.
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Spectroscopy along flerovium decay chains. III. Details on experiment, analysis, ²⁸²Cn, and spontaneous fission branches
Såmark-Roth, A., Cox, D. M., Rudolph, D., Sarmiento, L. G., Albertsson, M., Carlsson, B. G., Egido, J. L., Golubev, P., Heery, J., Yakushev, A., Åberg, S., Albers, H. M., Block, M., Brand, H., Calverley, T., Cantemir, R., Clark, R. M., Düllmann, C. E., Eberth, J., Fahlander, C., & 34 andraForsberg, U., Gates, J. M., Giacoppo, F., Götz, M., Götz, S., Herzberg, R-D., Hrabar, Y., Jäger, E., Judson, D., Khuyagbaatar, J., Kindler, B., Kojouharov, I., Kratz, J. V., Krier, J., Kurz, N., Lens, L., Ljungberg, J., Lommel, B., Louko, J., Meyer, C-C., Mistry, A., Mokry, C., Papadakis, P., Parr, E., Pore, J. L., Ragnarsson, I., Runke, J., Schädel, M., Schaffner, H., Schausten, B., Shaughnessy, D. A., Thörle-Pospiech, P., Trautmann, N. & Uusitalo, J., 2023 feb. 6, I: Physical Review C. 107, 2, 12 s., 024301.
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On the adsorption and reactivity of element 114, flerovium
Yakushev, A., Lens, L., Düllmann, C. E., Khuyagbaatar, J., Jäger, E., Krier, J., Runke, J., Albers, H. M., Asai, M., Block, M., Despotopulos, J., Di Nitto, A., Eberhardt, K., Forsberg, U., Golubev, P., Götz, M., Götz, S., Haba, H., Harkness-Brennan, L., Herzberg, R-D., & 39 andraHeßberger, F. P., Hinde, D., Hübner, A., Judson, D., Kindler, B., Komori, Y., Konki, J., Kratz, J. V., Kurz, N., Laatiaoui, M., Lahiri, S., Lommel, B., Maiti, M., Mistry, A. K., Mokry, C., Moody, K. J., Nagame, Y., Omtvedt, J. P., Papadakis, P., Pershina, V., Rudolph, D., Sarmiento, L. G., Sato, T. K., Schädel, M., Scharrer, P., Schausten, B., Shaughnessy, D. A., Steiner, J., Thörle-Pospiech, P., Toyoshima, A., Trautmann, N., Tsukada, K., Uusitalo, J., Voss, K-O., Ward, A., Wegrzecki, M., Wiehl, N., Williams, E. & Yakusheva, V., 2022 aug. 25, I: Frontiers in Chemistry. 10, 11 s., 976635.
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ChaSE Lundium: Karakterisering av nya supertunga grundämnen
Rudolph, D., Åberg, S., Carlsson, G., Düllmann, C. E., Golubev, P., Sarmiento Pico, L., Forsberg, U., Toivanen, J., Ward, D., Cox, D., Lorenz, C., Såmark-Roth, A., Albertsson, M., Ljungberg, J., Hrabar, Y., Lindholm, Y., Lindqvist, K. & Lundberg, M.
Knut and Alice Wallenberg Foundation, Nobelstiftelsen
2016/01/01 → 2023/12/31
Projekt: Forskning

Fil
Kärnstruktur vid stabilitetsgränsen: Spektroskopi av särskilda isotoper
Rudolph, D., Fahlander, C., Golubev, P., Sarmiento Pico, L., Cox, D., Hrabar, Y., Såmark-Roth, A., Forsberg, U., Lorenz, C., Lalovic, N., Lalovic, N., Forsberg, U., Gellanki, J., Hoischen, R., Johansson, E., Andersson, L., du Rietz, R., Ekman, J. & Andreoiu, C.
Swedish Research Council
2002/01/01 → 2027/12/31
Projekt: Forskning
Spectroscopy along Decay Chains of Element 114, Flerovium
Såmark-Roth, A., Rudolph, D. & Sarmiento Pico, L.
2016/12/01 → 2021/06/18
Projekt: Avhandling

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Cox, D. M., Såmark-Roth, A., Rudolph, D., Sarmiento, L. G., Clark, R. M., Egido, J. L., Golubev, P., Heery, J., Yakushev, A., Åberg, S., Albers, H. M., Albertsson, M., Block, M., Brand, H., Calverley, T., Cantemir, R., Carlsson, B. G., Düllmann, C. E., Eberth, J., ... Uusitalo, J. (2023). Spectroscopy along flerovium decay chains. II. Fine structure in odd-A ²⁸⁹Fl. Physical Review C, 107(2), [L021301]. https://doi.org/10.1103/PhysRevC.107.L021301

@article{5ee9ca0f325343e29534f63589966e57,

title = "Spectroscopy along flerovium decay chains. II. Fine structure in odd-A 289Fl",

abstract = "Fifteen correlated α-decay chains starting from the odd-A superheavy nucleus 289Fl were observed following the fusion-evaporation reaction 48Ca+244Pu. The results call for at least two parallel α-decay sequences starting from at least two different states of 289Fl. This implies that close-lying levels in nuclei along these chains have quite different spin-parity assignments. Further, observed α-electron and α-photon coincidences, as well as the α-decay fine structure along the decay chains, suggest a change in the ground-state spin assignment between 285Cn and 281Ds. Our experimental results, on the excited level structure of the heaviest odd-N nuclei to date, provide a direct testing ground for theory. This is illustrated by comparison with new nuclear structure calculations based on the symmetry-conserving configuration mixing theory.",

keywords = "Superheavy elements, Nuclear spectroscopy, Alpha decay, Mean field theory, Island of stability",

author = "Cox, {D. M.} and A. S{\aa}mark-Roth and D. Rudolph and Sarmiento, {L. G.} and Clark, {R. M.} and Egido, {J. L.} and P. Golubev and J. Heery and A. Yakushev and S. {\AA}berg and Albers, {H. M.} and M. Albertsson and M. Block and H. Brand and T. Calverley and R. Cantemir and Carlsson, {B. G.} and D{\"u}llmann, {Ch. E.} and J. Eberth and C. Fahlander and U. Forsberg and Gates, {J. M.} and F. Giacoppo and M. G{\"o}tz and S. G{\"o}tz and R.-D. Herzberg and Y. Hrabar and E. J{\"a}ger and D. Judson and J. Khuyagbaatar and B. Kindler and I. Kojouharov and Kratz, {J. V.} and J. Krier and N. Kurz and L. Lens and J. Ljungberg and B. Lommel and J. Louko and C.-C. Meyer and A. Mistry and C. Mokry and P. Papadakis and E. Parr and Pore, {J. L.} and I. Ragnarsson and J. Runke and M. Sch{\"a}del and H. Schaffner and B. Schausten and Shaughnessy, {D. A.} and P. Th{\"o}rle-Pospiech and N. Trautmann and J. Uusitalo",

year = "2023",

month = feb,

day = "6",

doi = "10.1103/PhysRevC.107.L021301",

language = "English",

volume = "107",

journal = "Physical Review C",

issn = "2469-9985",

publisher = "American Physical Society",

number = "2",

}

Cox, DM, Såmark-Roth, A, Rudolph, D , Sarmiento, LG, Clark, RM, Egido, JL, Golubev, P, Heery, J, Yakushev, A, Åberg, S, Albers, HM, Albertsson, M, Block, M, Brand, H, Calverley, T, Cantemir, R, Carlsson, BG, Düllmann, CE, Eberth, J, Fahlander, C, Forsberg, U, Gates, JM, Giacoppo, F, Götz, M, Götz, S, Herzberg, R-D, Hrabar, Y, Jäger, E, Judson, D, Khuyagbaatar, J, Kindler, B, Kojouharov, I, Kratz, JV, Krier, J, Kurz, N, Lens, L, Ljungberg, J, Lommel, B, Louko, J, Meyer, C-C, Mistry, A, Mokry, C, Papadakis, P, Parr, E, Pore, JL, Ragnarsson, I, Runke, J, Schädel, M, Schaffner, H, Schausten, B, Shaughnessy, DA, Thörle-Pospiech, P, Trautmann, N & Uusitalo, J 2023, 'Spectroscopy along flerovium decay chains. II. Fine structure in odd-A ²⁸⁹Fl', Physical Review C, vol. 107, nr. 2, L021301. https://doi.org/10.1103/PhysRevC.107.L021301

TY - JOUR

T1 - Spectroscopy along flerovium decay chains. II. Fine structure in odd-A 289Fl

AU - Cox, D. M.

AU - Såmark-Roth, A.

AU - Rudolph, D.

AU - Sarmiento, L. G.

AU - Clark, R. M.

AU - Egido, J. L.

AU - Golubev, P.

AU - Heery, J.

AU - Yakushev, A.

AU - Åberg, S.

AU - Albers, H. M.

AU - Albertsson, M.

AU - Block, M.

AU - Brand, H.

AU - Calverley, T.

AU - Cantemir, R.

AU - Carlsson, B. G.

AU - Düllmann, Ch. E.

AU - Eberth, J.

AU - Fahlander, C.

AU - Forsberg, U.

AU - Gates, J. M.

AU - Giacoppo, F.

AU - Götz, M.

AU - Götz, S.

AU - Herzberg, R.-D.

AU - Hrabar, Y.

AU - Jäger, E.

AU - Judson, D.

AU - Khuyagbaatar, J.

AU - Kindler, B.

AU - Kojouharov, I.

AU - Kratz, J. V.

AU - Krier, J.

AU - Kurz, N.

AU - Lens, L.

AU - Ljungberg, J.

AU - Lommel, B.

AU - Louko, J.

AU - Meyer, C.-C.

AU - Mistry, A.

AU - Mokry, C.

AU - Papadakis, P.

AU - Parr, E.

AU - Pore, J. L.

AU - Ragnarsson, I.

AU - Runke, J.

AU - Schädel, M.

AU - Schaffner, H.

AU - Schausten, B.

AU - Shaughnessy, D. A.

AU - Thörle-Pospiech, P.

AU - Trautmann, N.

AU - Uusitalo, J.

PY - 2023/2/6

Y1 - 2023/2/6

N2 - Fifteen correlated α-decay chains starting from the odd-A superheavy nucleus 289Fl were observed following the fusion-evaporation reaction 48Ca+244Pu. The results call for at least two parallel α-decay sequences starting from at least two different states of 289Fl. This implies that close-lying levels in nuclei along these chains have quite different spin-parity assignments. Further, observed α-electron and α-photon coincidences, as well as the α-decay fine structure along the decay chains, suggest a change in the ground-state spin assignment between 285Cn and 281Ds. Our experimental results, on the excited level structure of the heaviest odd-N nuclei to date, provide a direct testing ground for theory. This is illustrated by comparison with new nuclear structure calculations based on the symmetry-conserving configuration mixing theory.

AB - Fifteen correlated α-decay chains starting from the odd-A superheavy nucleus 289Fl were observed following the fusion-evaporation reaction 48Ca+244Pu. The results call for at least two parallel α-decay sequences starting from at least two different states of 289Fl. This implies that close-lying levels in nuclei along these chains have quite different spin-parity assignments. Further, observed α-electron and α-photon coincidences, as well as the α-decay fine structure along the decay chains, suggest a change in the ground-state spin assignment between 285Cn and 281Ds. Our experimental results, on the excited level structure of the heaviest odd-N nuclei to date, provide a direct testing ground for theory. This is illustrated by comparison with new nuclear structure calculations based on the symmetry-conserving configuration mixing theory.

KW - Superheavy elements

KW - Nuclear spectroscopy

KW - Alpha decay

KW - Mean field theory

KW - Island of stability

UR - https://journals.aps.org/prc/abstract/10.1103/PhysRevC.107.L021301

U2 - 10.1103/PhysRevC.107.L021301

DO - 10.1103/PhysRevC.107.L021301

M3 - Article

SN - 2469-9985

VL - 107

JO - Physical Review C

JF - Physical Review C

IS - 2

M1 - L021301

ER -

Spectroscopy along flerovium decay chains. II. Fine structure in odd-A 289Fl

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Role of quasiparticle structure in α decay of superheavy nuclei

Spectroscopy along flerovium decay chains. III. Details on experiment, analysis, 282Cn, and spontaneous fission branches

On the adsorption and reactivity of element 114, flerovium

Projekt

ChaSE Lundium: Karakterisering av nya supertunga grundämnen

Kärnstruktur vid stabilitetsgränsen: Spektroskopi av särskilda isotoper

Spectroscopy along Decay Chains of Element 114, Flerovium

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Platform for Advanced Radiaton Detectors

Citera det här

Spectroscopy along flerovium decay chains. II. Fine structure in odd-A ²⁸⁹Fl

Spectroscopy along flerovium decay chains. III. Details on experiment, analysis, ²⁸²Cn, and spontaneous fission branches