High-spin states beyond the proton dripline: quasiparticle alignments in 113 Cs

P.t. Wady; J.f. Smith; B. Hadinia; D.m. Cullen; S.j. Freeman; I.g. Darby; S. Eeckhaudt; T. Grahn; P.t. Greenlees; P.m. Jones; R. Julin; S. Juutinen; H. Kettunen; M. Leino; A.-p. Leppänen; B.m. Mcguirk; P. Nieminen; M. Nyman; R.d. Page; J. Pakarinen; E.s. Paul; P. Rahkila; S.v. Rigby; C. Scholey; J. Uusitalo; R. Wadsworth

doi:10.1016/j.physletb.2014.11.045

High-spin states beyond the proton dripline: quasiparticle alignments in ¹¹³Cs

P.t. Wady, J.f. Smith, B. Hadinia, D.m. Cullen, S.j. Freeman, I.g. Darby, S. Eeckhaudt, T. Grahn, P.t. Greenlees, P.m. Jones, R. Julin, S. Juutinen, H. Kettunen, M. Leino, A.-p. Leppänen, B.m. Mcguirk, P. Nieminen, M. Nyman, R.d. Page, J. PakarinenE.s. Paul, P. Rahkila, S.v. Rigby, C. Scholey, J. Uusitalo, R. Wadsworth

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

4 Citations (Scopus)

Abstract

Excited states have been studied in the deformed proton emitter 113Cs. Gamma-ray transitions have been unambiguously assigned to 113Cs by correlation with its characteristic proton decay, using the method of recoil-decay tagging. Two previously identified rotational bands have been observed and extended to tentative spins of 45/2and 51/2 ̄h, with excitation energies over 8 MeV above the lowest state. These are the highest angular momenta and excitation energies observed to date in any nucleus beyond the proton drip-line. Transitions in the bands have been rearranged compared to previous work. A study of aligned angular momenta, in comparison to the predictions of Woods–Saxon cranking calculations, is consistent with the most intense band being based on the πg7/2[422]3/2+configuration, which would contradict the earlier πh11/2assignment, and with the second band being based on the πd5/2[420]1/2+configuration. The data suggest that the band based upon the πh11/2configuration is not observed.

Original language	English
Pages (from-to)	243-249
Number of pages	7
Journal	Physics Letters B
Volume	740
Early online date	26 Nov 2014
DOIs	https://doi.org/10.1016/j.physletb.2014.11.045
Publication status	Published - 1 Jan 2015

Keywords

proton decay
recoil-decay tagging
Gamma-ray Spectroscopy
High-spin states
Quasiparticle alignments

Access to Document

10.1016/j.physletb.2014.11.045Licence: CC BY

John Smith
Person

Cite this

Wady, P. T., Smith, J. F., Hadinia, B., Cullen, D. M., Freeman, S. J., Darby, I. G., Eeckhaudt, S., Grahn, T., Greenlees, P. T., Jones, P. M., Julin, R., Juutinen, S., Kettunen, H., Leino, M., Leppänen, A., Mcguirk, B. M., Nieminen, P., Nyman, M., Page, R. D., ... Wadsworth, R. (2015). High-spin states beyond the proton dripline: quasiparticle alignments in ¹¹³Cs. Physics Letters B, 740, 243-249. https://doi.org/10.1016/j.physletb.2014.11.045

@article{b38503284bea48b2b0105b64c05e75cc,

title = "High-spin states beyond the proton dripline: quasiparticle alignments in 113 Cs",

abstract = "Excited states have been studied in the deformed proton emitter 113Cs. Gamma-ray transitions have been unambiguously assigned to 113Cs by correlation with its characteristic proton decay, using the method of recoil-decay tagging. Two previously identified rotational bands have been observed and extended to tentative spins of 45/2and 51/2{\= }h, with excitation energies over 8 MeV above the lowest state. These are the highest angular momenta and excitation energies observed to date in any nucleus beyond the proton drip-line. Transitions in the bands have been rearranged compared to previous work. A study of aligned angular momenta, in comparison to the predictions of Woods–Saxon cranking calculations, is consistent with the most intense band being based on the πg7/2[422]3/2+configuration, which would contradict the earlier πh11/2assignment, and with the second band being based on the πd5/2[420]1/2+configuration. The data suggest that the band based upon the πh11/2configuration is not observed.",

keywords = "proton decay, recoil-decay tagging, Gamma-ray Spectroscopy, High-spin states, Quasiparticle alignments",

author = "P.t. Wady and J.f. Smith and B. Hadinia and D.m. Cullen and S.j. Freeman and I.g. Darby and S. Eeckhaudt and T. Grahn and P.t. Greenlees and P.m. Jones and R. Julin and S. Juutinen and H. Kettunen and M. Leino and A.-p. Lepp{\"a}nen and B.m. Mcguirk and P. Nieminen and M. Nyman and R.d. Page and J. Pakarinen and E.s. Paul and P. Rahkila and S.v. Rigby and C. Scholey and J. Uusitalo and R. Wadsworth",

year = "2015",

month = jan,

day = "1",

doi = "10.1016/j.physletb.2014.11.045",

language = "English",

volume = "740",

pages = "243--249",

journal = "Physics Letters B",

issn = "0370-2693",

publisher = "Elsevier B.V.",

}

Wady, PT, Smith, JF, Hadinia, B, Cullen, DM, Freeman, SJ, Darby, IG, Eeckhaudt, S, Grahn, T, Greenlees, PT, Jones, PM, Julin, R, Juutinen, S, Kettunen, H, Leino, M, Leppänen, A, Mcguirk, BM, Nieminen, P, Nyman, M, Page, RD, Pakarinen, J, Paul, ES, Rahkila, P, Rigby, SV, Scholey, C, Uusitalo, J & Wadsworth, R 2015, 'High-spin states beyond the proton dripline: quasiparticle alignments in ¹¹³Cs', Physics Letters B, vol. 740, pp. 243-249. https://doi.org/10.1016/j.physletb.2014.11.045

TY - JOUR

T1 - High-spin states beyond the proton dripline

T2 - quasiparticle alignments in 113 Cs

AU - Wady, P.t.

AU - Smith, J.f.

AU - Hadinia, B.

AU - Cullen, D.m.

AU - Freeman, S.j.

AU - Darby, I.g.

AU - Eeckhaudt, S.

AU - Grahn, T.

AU - Greenlees, P.t.

AU - Jones, P.m.

AU - Julin, R.

AU - Juutinen, S.

AU - Kettunen, H.

AU - Leino, M.

AU - Leppänen, A.-p.

AU - Mcguirk, B.m.

AU - Nieminen, P.

AU - Nyman, M.

AU - Page, R.d.

AU - Pakarinen, J.

AU - Paul, E.s.

AU - Rahkila, P.

AU - Rigby, S.v.

AU - Scholey, C.

AU - Uusitalo, J.

AU - Wadsworth, R.

PY - 2015/1/1

Y1 - 2015/1/1

N2 - Excited states have been studied in the deformed proton emitter 113Cs. Gamma-ray transitions have been unambiguously assigned to 113Cs by correlation with its characteristic proton decay, using the method of recoil-decay tagging. Two previously identified rotational bands have been observed and extended to tentative spins of 45/2and 51/2 ̄h, with excitation energies over 8 MeV above the lowest state. These are the highest angular momenta and excitation energies observed to date in any nucleus beyond the proton drip-line. Transitions in the bands have been rearranged compared to previous work. A study of aligned angular momenta, in comparison to the predictions of Woods–Saxon cranking calculations, is consistent with the most intense band being based on the πg7/2[422]3/2+configuration, which would contradict the earlier πh11/2assignment, and with the second band being based on the πd5/2[420]1/2+configuration. The data suggest that the band based upon the πh11/2configuration is not observed.

AB - Excited states have been studied in the deformed proton emitter 113Cs. Gamma-ray transitions have been unambiguously assigned to 113Cs by correlation with its characteristic proton decay, using the method of recoil-decay tagging. Two previously identified rotational bands have been observed and extended to tentative spins of 45/2and 51/2 ̄h, with excitation energies over 8 MeV above the lowest state. These are the highest angular momenta and excitation energies observed to date in any nucleus beyond the proton drip-line. Transitions in the bands have been rearranged compared to previous work. A study of aligned angular momenta, in comparison to the predictions of Woods–Saxon cranking calculations, is consistent with the most intense band being based on the πg7/2[422]3/2+configuration, which would contradict the earlier πh11/2assignment, and with the second band being based on the πd5/2[420]1/2+configuration. The data suggest that the band based upon the πh11/2configuration is not observed.

KW - proton decay

KW - recoil-decay tagging

KW - Gamma-ray Spectroscopy

KW - High-spin states

KW - Quasiparticle alignments

U2 - 10.1016/j.physletb.2014.11.045

DO - 10.1016/j.physletb.2014.11.045

M3 - Article

SN - 0370-2693

VL - 740

SP - 243

EP - 249

JO - Physics Letters B

JF - Physics Letters B

ER -

High-spin states beyond the proton dripline: quasiparticle alignments in 113 Cs

Abstract

Keywords

Access to Document

Fingerprint

Profiles

John Smith

Cite this

High-spin states beyond the proton dripline: quasiparticle alignments in ¹¹³Cs