De-excitation of the strongly coupled band in 177Au and implications for core intruder configurations in the light Hg isotopes

M. Venhart; F. A. Ali; W. Ryssens; J. L. Wood; D. T. Joss; A. N. Andreyev; K. Auranen; B. Bally; M. Balogh; M. Bender; R. J. Carroll; J. L. Easton; P. T. Greenlees; T. Grahn; P.-H. Heenen; A. Herzáifmmode ecknelse n; U. Jakobsson; R. Julin; S. Juutinen; D. Kifmmode lelse ifmmode eckcelse c; J. Konki; E. Lawrie; M. Leino; V. Matouifmmode eckselse sek; C. G. McPeake; D. O'Donnell; R. D. Page; J. Pakarinen; J. Partanen; P. Peura; P. Rahkila; P. Ruotsalainen; M. Sandzelius; J. Sarén; Sayifmmode gelse  B.; M. Sedlák; C. Scholey; J. Sorri; S. Stolze; A. Thornthwaite; J. Uusitalo; M. Veselský

doi:10.1103/PhysRevC.95.061302

De-excitation of the strongly coupled band in 177Au and implications for core intruder configurations in the light Hg isotopes

M. Venhart, F. A. Ali, W. Ryssens, J. L. Wood, D. T. Joss, A. N. Andreyev, K. Auranen, B. Bally, M. Balogh, M. Bender, R. J. Carroll, J. L. Easton, P. T. Greenlees, T. Grahn, P.-H. Heenen, A. Herzáifmmode ecknelse n, U. Jakobsson, R. Julin, S. Juutinen, D. Kifmmode lelse ifmmode eckcelse cJ. Konki, E. Lawrie, M. Leino, V. Matouifmmode eckselse sek, C. G. McPeake, D. O'Donnell, R. D. Page, J. Pakarinen, J. Partanen, P. Peura, P. Rahkila, P. Ruotsalainen, M. Sandzelius, J. Sarén, Sayifmmode gelse B., M. Sedlák, C. Scholey, J. Sorri, S. Stolze, A. Thornthwaite, J. Uusitalo, M. Veselský

Physics

Research output: Contribution to journal › Article › peer-review

Abstract

Excited states in the proton-unbound nuclide 177Au were populated in the 92Mo(88Sr, p2n) reaction and identified using the Jurogam-II and GREAT spectrometers in conjunction with the RITU gas-filled separator at the University of Jyväskylä Accelerator Laboratory. A strongly coupled band and its decay path to the
11/2− α-decaying isomer have been identified using recoil-decay tagging. Comparisons with cranked HartreeFock-Bogoliubov (HFB) calculations based on Skyrme energy functionals suggest that the band has a prolate
deformation and is based upon coupling the odd 1h11/2 proton hole to the excited 0+
2 configuration in the 178Hg
core. Although these configurations might be expected to follow the parabolic trend of core Hg(0+2 ) states as a function of neutron number, the electromagnetic decay paths from the strongly coupled band in 177Au are
markedly different from those observed in the heavier isotopes above the midshell. This indicates that a significant
change in the structure of the underlying A+1Hg core occurs below the neutron midshell.

Original language	English
Article number	061302
Pages (from-to)	1-5
Number of pages	5
Journal	Physical Review C - Nuclear Physics
Volume	95
DOIs	https://doi.org/10.1103/PhysRevC.95.061302
Publication status	Published - 1 Jun 2017

Bibliographical note

©2017 American Physical Society. This is an author-produced version of the published paper. Uploaded in accordance with the publisher’s self-archiving policy. Further copying may not be permitted; contact the publisher for details.

Access to Document

10.1103/PhysRevC.95.061302

PhysRevC.95.061302
©2017 American Physical Society. This is an author-produced version of the published paper. Uploaded in accordance with the publisher’s self-archiving policy. Further copying may not be permitted; contact the publisher for details.
Final published version, 229 KB

https://link.aps.org/doi/10.1103/PhysRevC.95.061302

Cite this

Venhart, M., Ali, F. A., Ryssens, W., Wood, J. L., Joss, D. T., Andreyev, A. N., Auranen, K., Bally, B., Balogh, M., Bender, M., Carroll, R. J., Easton, J. L., Greenlees, P. T., Grahn, T., Heenen, P.-H., Herzáifmmode ecknelse n, A., Jakobsson, U., Julin, R., Juutinen, S., ... Veselský, M. (2017). De-excitation of the strongly coupled band in 177Au and implications for core intruder configurations in the light Hg isotopes. Physical Review C - Nuclear Physics, 95, 1-5. Article 061302. https://doi.org/10.1103/PhysRevC.95.061302

@article{ae558cb6d6de47d5ab5154409e263e13,

title = "De-excitation of the strongly coupled band in 177Au and implications for core intruder configurations in the light Hg isotopes",

abstract = "Excited states in the proton-unbound nuclide 177Au were populated in the 92Mo(88Sr, p2n) reaction and identified using the Jurogam-II and GREAT spectrometers in conjunction with the RITU gas-filled separator at the University of Jyv{\"a}skyl{\"a} Accelerator Laboratory. A strongly coupled band and its decay path to the11/2− α-decaying isomer have been identified using recoil-decay tagging. Comparisons with cranked HartreeFock-Bogoliubov (HFB) calculations based on Skyrme energy functionals suggest that the band has a prolatedeformation and is based upon coupling the odd 1h11/2 proton hole to the excited 0+2 configuration in the 178Hgcore. Although these configurations might be expected to follow the parabolic trend of core Hg(0+2 ) states as a function of neutron number, the electromagnetic decay paths from the strongly coupled band in 177Au aremarkedly different from those observed in the heavier isotopes above the midshell. This indicates that a significantchange in the structure of the underlying A+1Hg core occurs below the neutron midshell.",

author = "M. Venhart and Ali, {F. A.} and W. Ryssens and Wood, {J. L.} and Joss, {D. T.} and Andreyev, {A. N.} and K. Auranen and B. Bally and M. Balogh and M. Bender and Carroll, {R. J.} and Easton, {J. L.} and Greenlees, {P. T.} and T. Grahn and P.-H. Heenen and {Herz{\'a}ifmmode ecknelse n}, A. and U. Jakobsson and R. Julin and S. Juutinen and {Kifmmode lelse ifmmode eckcelse c}, D. and J. Konki and E. Lawrie and M. Leino and {Matouifmmode eckselse sek}, V. and McPeake, {C. G.} and D. O'Donnell and Page, {R. D.} and J. Pakarinen and J. Partanen and P. Peura and P. Rahkila and P. Ruotsalainen and M. Sandzelius and J. Sar{\'e}n and B., {Sayifmmode gelse} and M. Sedl{\'a}k and C. Scholey and J. Sorri and S. Stolze and A. Thornthwaite and J. Uusitalo and M. Veselsk{\'y}",

note = "{\textcopyright}2017 American Physical Society. This is an author-produced version of the published paper. Uploaded in accordance with the publisher{\textquoteright}s self-archiving policy. Further copying may not be permitted; contact the publisher for details.",

year = "2017",

month = jun,

day = "1",

doi = "10.1103/PhysRevC.95.061302",

language = "English",

volume = "95",

pages = "1--5",

journal = "Physical Review C - Nuclear Physics",

issn = "0556-2813",

publisher = "American Physical Society",

}

Venhart, M, Ali, FA, Ryssens, W, Wood, JL, Joss, DT, Andreyev, AN, Auranen, K, Bally, B, Balogh, M, Bender, M, Carroll, RJ, Easton, JL, Greenlees, PT, Grahn, T, Heenen, P-H, Herzáifmmode ecknelse n, A, Jakobsson, U, Julin, R, Juutinen, S, Kifmmode lelse ifmmode eckcelse c, D, Konki, J, Lawrie, E, Leino, M, Matouifmmode eckselse sek, V, McPeake, CG, O'Donnell, D, Page, RD, Pakarinen, J, Partanen, J, Peura, P, Rahkila, P, Ruotsalainen, P, Sandzelius, M, Sarén, J, B., SG, Sedlák, M, Scholey, C, Sorri, J, Stolze, S, Thornthwaite, A, Uusitalo, J & Veselský, M 2017, 'De-excitation of the strongly coupled band in 177Au and implications for core intruder configurations in the light Hg isotopes', Physical Review C - Nuclear Physics, vol. 95, 061302, pp. 1-5. https://doi.org/10.1103/PhysRevC.95.061302

TY - JOUR

T1 - De-excitation of the strongly coupled band in 177Au and implications for core intruder configurations in the light Hg isotopes

AU - Venhart, M.

AU - Ali, F. A.

AU - Ryssens, W.

AU - Wood, J. L.

AU - Joss, D. T.

AU - Andreyev, A. N.

AU - Auranen, K.

AU - Bally, B.

AU - Balogh, M.

AU - Bender, M.

AU - Carroll, R. J.

AU - Easton, J. L.

AU - Greenlees, P. T.

AU - Grahn, T.

AU - Heenen, P.-H.

AU - Herzáifmmode ecknelse n, A.

AU - Jakobsson, U.

AU - Julin, R.

AU - Juutinen, S.

AU - Kifmmode lelse ifmmode eckcelse c, D.

AU - Konki, J.

AU - Lawrie, E.

AU - Leino, M.

AU - Matouifmmode eckselse sek, V.

AU - McPeake, C. G.

AU - O'Donnell, D.

AU - Page, R. D.

AU - Pakarinen, J.

AU - Partanen, J.

AU - Peura, P.

AU - Rahkila, P.

AU - Ruotsalainen, P.

AU - Sandzelius, M.

AU - Sarén, J.

AU - B., Sayifmmode gelse

AU - Sedlák, M.

AU - Scholey, C.

AU - Sorri, J.

AU - Stolze, S.

AU - Thornthwaite, A.

AU - Uusitalo, J.

AU - Veselský, M.

N1 - ©2017 American Physical Society. This is an author-produced version of the published paper. Uploaded in accordance with the publisher’s self-archiving policy. Further copying may not be permitted; contact the publisher for details.

PY - 2017/6/1

Y1 - 2017/6/1

N2 - Excited states in the proton-unbound nuclide 177Au were populated in the 92Mo(88Sr, p2n) reaction and identified using the Jurogam-II and GREAT spectrometers in conjunction with the RITU gas-filled separator at the University of Jyväskylä Accelerator Laboratory. A strongly coupled band and its decay path to the11/2− α-decaying isomer have been identified using recoil-decay tagging. Comparisons with cranked HartreeFock-Bogoliubov (HFB) calculations based on Skyrme energy functionals suggest that the band has a prolatedeformation and is based upon coupling the odd 1h11/2 proton hole to the excited 0+2 configuration in the 178Hgcore. Although these configurations might be expected to follow the parabolic trend of core Hg(0+2 ) states as a function of neutron number, the electromagnetic decay paths from the strongly coupled band in 177Au aremarkedly different from those observed in the heavier isotopes above the midshell. This indicates that a significantchange in the structure of the underlying A+1Hg core occurs below the neutron midshell.

AB - Excited states in the proton-unbound nuclide 177Au were populated in the 92Mo(88Sr, p2n) reaction and identified using the Jurogam-II and GREAT spectrometers in conjunction with the RITU gas-filled separator at the University of Jyväskylä Accelerator Laboratory. A strongly coupled band and its decay path to the11/2− α-decaying isomer have been identified using recoil-decay tagging. Comparisons with cranked HartreeFock-Bogoliubov (HFB) calculations based on Skyrme energy functionals suggest that the band has a prolatedeformation and is based upon coupling the odd 1h11/2 proton hole to the excited 0+2 configuration in the 178Hgcore. Although these configurations might be expected to follow the parabolic trend of core Hg(0+2 ) states as a function of neutron number, the electromagnetic decay paths from the strongly coupled band in 177Au aremarkedly different from those observed in the heavier isotopes above the midshell. This indicates that a significantchange in the structure of the underlying A+1Hg core occurs below the neutron midshell.

U2 - 10.1103/PhysRevC.95.061302

DO - 10.1103/PhysRevC.95.061302

M3 - Article

SN - 0556-2813

VL - 95

SP - 1

EP - 5

JO - Physical Review C - Nuclear Physics

JF - Physical Review C - Nuclear Physics

M1 - 061302

ER -