Identification of excited states in the Tz=1 nucleus Xe110: Evidence for enhanced collectivity near the N=Z=50 double shell closure

M. Sandzelius; B. Hadinia; B. Cederwall; K. Andgren; E. Ganioǧlu; I. G. Darby; M. R. Dimmock; S. Eeckhaudt; T. Grahn; P. T. Greenlees; E. Ideguchi; P. M. Jones; D. T. Joss; R. Julin; S. Juutinen; A. Khaplanov; M. Leino; L. Nelson; M. Niikura; M. Nyman; R. D. Page; J. Pakarinen; E. S. Paul; M. Petri; P. Rahkila; J. Sarén; C. Scholey; J. Sorri; J. Uusitalo; R. Wadsworth; R. Wyss

doi:10.1103/PhysRevLett.99.022501

Identification of excited states in the Tz=1 nucleus Xe110: Evidence for enhanced collectivity near the N=Z=50 double shell closure

M. Sandzelius, B. Hadinia, B. Cederwall, K. Andgren, E. Ganioǧlu, I. G. Darby, M. R. Dimmock, S. Eeckhaudt, T. Grahn, P. T. Greenlees, E. Ideguchi, P. M. Jones, D. T. Joss, R. Julin, S. Juutinen, A. Khaplanov, M. Leino, L. Nelson, M. Niikura, M. NymanR. D. Page, J. Pakarinen, E. S. Paul, M. Petri, P. Rahkila, J. Sarén, C. Scholey, J. Sorri, J. Uusitalo, R. Wadsworth, R. Wyss

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Abstract

Gamma-ray transitions have been identified for the first time in the extremely neutron-deficient (N=Z+2) nucleus Xe110, and the energies of the three lowest excited states in the ground-state band have been deduced. The results establish a breaking of the normal trend of increasing first excited 2+ and 4+ level energies as a function of the decreasing neutron number as the N=50 major shell gap is approached for the neutron-deficient Xe isotopes. This unusual feature is suggested to be an effect of enhanced collectivity, possibly arising from isoscalar n-p interactions becoming increasingly important close to the N=Z line.

Original language	English
Article number	022501
Journal	Physical Review Letters
Volume	99
Issue number	2
DOIs	https://doi.org/10.1103/PhysRevLett.99.022501
State	Published - Jul 11 2007
Externally published	Yes

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Sandzelius, M., Hadinia, B., Cederwall, B., Andgren, K., Ganioǧlu, E., Darby, I. G., Dimmock, M. R., Eeckhaudt, S., Grahn, T., Greenlees, P. T., Ideguchi, E., Jones, P. M., Joss, D. T., Julin, R., Juutinen, S., Khaplanov, A., Leino, M., Nelson, L., Niikura, M., ... Wyss, R. (2007). Identification of excited states in the Tz=1 nucleus Xe110: Evidence for enhanced collectivity near the N=Z=50 double shell closure. Physical Review Letters, 99(2), Article 022501. https://doi.org/10.1103/PhysRevLett.99.022501

@article{e8d86e87c47c4036a31507decaf62b71,

title = "Identification of excited states in the Tz=1 nucleus Xe110: Evidence for enhanced collectivity near the N=Z=50 double shell closure",

abstract = "Gamma-ray transitions have been identified for the first time in the extremely neutron-deficient (N=Z+2) nucleus Xe110, and the energies of the three lowest excited states in the ground-state band have been deduced. The results establish a breaking of the normal trend of increasing first excited 2+ and 4+ level energies as a function of the decreasing neutron number as the N=50 major shell gap is approached for the neutron-deficient Xe isotopes. This unusual feature is suggested to be an effect of enhanced collectivity, possibly arising from isoscalar n-p interactions becoming increasingly important close to the N=Z line.",

author = "M. Sandzelius and B. Hadinia and B. Cederwall and K. Andgren and E. Ganioǧlu and Darby, \{I. G.\} and Dimmock, \{M. R.\} and S. Eeckhaudt and T. Grahn and Greenlees, \{P. T.\} and E. Ideguchi and Jones, \{P. M.\} and Joss, \{D. T.\} and R. Julin and S. Juutinen and A. Khaplanov and M. Leino and L. Nelson and M. Niikura and M. Nyman and Page, \{R. D.\} and J. Pakarinen and Paul, \{E. S.\} and M. Petri and P. Rahkila and J. Sar{\'e}n and C. Scholey and J. Sorri and J. Uusitalo and R. Wadsworth and R. Wyss",

year = "2007",

month = jul,

day = "11",

doi = "10.1103/PhysRevLett.99.022501",

language = "English",

volume = "99",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "2",

}

Sandzelius, M, Hadinia, B, Cederwall, B, Andgren, K, Ganioǧlu, E, Darby, IG, Dimmock, MR, Eeckhaudt, S, Grahn, T, Greenlees, PT, Ideguchi, E, Jones, PM, Joss, DT, Julin, R, Juutinen, S, Khaplanov, A, Leino, M, Nelson, L, Niikura, M, Nyman, M, Page, RD, Pakarinen, J, Paul, ES, Petri, M, Rahkila, P, Sarén, J, Scholey, C, Sorri, J, Uusitalo, J, Wadsworth, R & Wyss, R 2007, 'Identification of excited states in the Tz=1 nucleus Xe110: Evidence for enhanced collectivity near the N=Z=50 double shell closure', Physical Review Letters, vol. 99, no. 2, 022501. https://doi.org/10.1103/PhysRevLett.99.022501

TY - JOUR

T1 - Identification of excited states in the Tz=1 nucleus Xe110

T2 - Evidence for enhanced collectivity near the N=Z=50 double shell closure

AU - Sandzelius, M.

AU - Hadinia, B.

AU - Cederwall, B.

AU - Andgren, K.

AU - Ganioǧlu, E.

AU - Darby, I. G.

AU - Dimmock, M. R.

AU - Eeckhaudt, S.

AU - Grahn, T.

AU - Greenlees, P. T.

AU - Ideguchi, E.

AU - Jones, P. M.

AU - Joss, D. T.

AU - Julin, R.

AU - Juutinen, S.

AU - Khaplanov, A.

AU - Leino, M.

AU - Nelson, L.

AU - Niikura, M.

AU - Nyman, M.

AU - Page, R. D.

AU - Pakarinen, J.

AU - Paul, E. S.

AU - Petri, M.

AU - Rahkila, P.

AU - Sarén, J.

AU - Scholey, C.

AU - Sorri, J.

AU - Uusitalo, J.

AU - Wadsworth, R.

AU - Wyss, R.

PY - 2007/7/11

Y1 - 2007/7/11

N2 - Gamma-ray transitions have been identified for the first time in the extremely neutron-deficient (N=Z+2) nucleus Xe110, and the energies of the three lowest excited states in the ground-state band have been deduced. The results establish a breaking of the normal trend of increasing first excited 2+ and 4+ level energies as a function of the decreasing neutron number as the N=50 major shell gap is approached for the neutron-deficient Xe isotopes. This unusual feature is suggested to be an effect of enhanced collectivity, possibly arising from isoscalar n-p interactions becoming increasingly important close to the N=Z line.

AB - Gamma-ray transitions have been identified for the first time in the extremely neutron-deficient (N=Z+2) nucleus Xe110, and the energies of the three lowest excited states in the ground-state band have been deduced. The results establish a breaking of the normal trend of increasing first excited 2+ and 4+ level energies as a function of the decreasing neutron number as the N=50 major shell gap is approached for the neutron-deficient Xe isotopes. This unusual feature is suggested to be an effect of enhanced collectivity, possibly arising from isoscalar n-p interactions becoming increasingly important close to the N=Z line.

UR - https://www.scopus.com/pages/publications/34547188159

U2 - 10.1103/PhysRevLett.99.022501

DO - 10.1103/PhysRevLett.99.022501

M3 - Article

AN - SCOPUS:34547188159

SN - 0031-9007

VL - 99

JO - Physical Review Letters

JF - Physical Review Letters

IS - 2

M1 - 022501

ER -

Identification of excited states in the Tz=1 nucleus Xe110: Evidence for enhanced collectivity near the N=Z=50 double shell closure

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