Evidence of nontermination of collective rotation near the maximum angular momentum in Rb-75

P. J. Davies; A. V. Afanasjev; R Wadsworth; C. Andreoiu; R. A. E. Austin; M. P. Carpenter; D. Dashdorj; P. Finlay; S. J. Freeman; P. E. Garrett; A. Goergen; J. Greene; G. F. Grinyer; B. Hyland; D. G. Jenkins; F. L. Johnston-Theasby; P. Joshi; A. O. Macchiavelli; F. Moore; G. Mukherjee; A. A. Phillips; W. Reviol; D. Sarantites; M. A. Schumaker; D. Seweryniak; M. B. Smith; C. E. Svensson; J. J. Valiente-Dobon; D. Ward

doi:10.1103/PhysRevC.82.061303

Evidence of nontermination of collective rotation near the maximum angular momentum in Rb-75

P. J. Davies, A. V. Afanasjev, R Wadsworth, C. Andreoiu, R. A. E. Austin, M. P. Carpenter, D. Dashdorj, P. Finlay, S. J. Freeman, P. E. Garrett, A. Goergen, J. Greene, G. F. Grinyer, B. Hyland, D. G. Jenkins, F. L. Johnston-Theasby, P. Joshi, A. O. Macchiavelli, F. Moore, G. MukherjeeA. A. Phillips, W. Reviol, D. Sarantites, M. A. Schumaker, D. Seweryniak, M. B. Smith, C. E. Svensson, J. J. Valiente-Dobon, D. Ward

Physics

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Abstract

Two of the four known rotational bands in Rb-75 were studied via the Ca-40(Ca-40,alpha p)Rb-75 reaction at a beam energy of 165 MeV. Transitions were observed up to the maximum spin I-max of the assigned configuration in one case and one-transition short of I-max in the other. Lifetimes were determined using the residual Doppler shift attenuation method. The deduced transition quadrupole moments show a small decrease with increasing spin, but remain large at the highest spins. The results obtained are in good agreement with cranked Nilsson-Strutinsky calculations, which indicate that these rotational bands do not terminate, but remain collective at I-max.

Original language	English
Article number	061303
Pages (from-to)	1-5
Number of pages	5
Journal	Physical Review C
Volume	82
Issue number	6
DOIs	https://doi.org/10.1103/PhysRevC.82.061303
Publication status	Published - 13 Dec 2010

Keywords

BANDS
REGION

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10.1103/PhysRevC.82.061303

http://prc.aps.org/abstract/PRC/v82/i6/e061303

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Davies, P. J., Afanasjev, A. V., Wadsworth, R., Andreoiu, C., Austin, R. A. E., Carpenter, M. P., Dashdorj, D., Finlay, P., Freeman, S. J., Garrett, P. E., Goergen, A., Greene, J., Grinyer, G. F., Hyland, B., Jenkins, D. G., Johnston-Theasby, F. L., Joshi, P., Macchiavelli, A. O., Moore, F., ... Ward, D. (2010). Evidence of nontermination of collective rotation near the maximum angular momentum in Rb-75. Physical Review C, 82(6), 1-5. Article 061303. https://doi.org/10.1103/PhysRevC.82.061303

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title = "Evidence of nontermination of collective rotation near the maximum angular momentum in Rb-75",

abstract = "Two of the four known rotational bands in Rb-75 were studied via the Ca-40(Ca-40,alpha p)Rb-75 reaction at a beam energy of 165 MeV. Transitions were observed up to the maximum spin I-max of the assigned configuration in one case and one-transition short of I-max in the other. Lifetimes were determined using the residual Doppler shift attenuation method. The deduced transition quadrupole moments show a small decrease with increasing spin, but remain large at the highest spins. The results obtained are in good agreement with cranked Nilsson-Strutinsky calculations, which indicate that these rotational bands do not terminate, but remain collective at I-max.",

keywords = "BANDS, REGION",

author = "Davies, {P. J.} and Afanasjev, {A. V.} and R Wadsworth and C. Andreoiu and Austin, {R. A. E.} and Carpenter, {M. P.} and D. Dashdorj and P. Finlay and Freeman, {S. J.} and Garrett, {P. E.} and A. Goergen and J. Greene and Grinyer, {G. F.} and B. Hyland and Jenkins, {D. G.} and Johnston-Theasby, {F. L.} and P. Joshi and Macchiavelli, {A. O.} and F. Moore and G. Mukherjee and Phillips, {A. A.} and W. Reviol and D. Sarantites and Schumaker, {M. A.} and D. Seweryniak and Smith, {M. B.} and Svensson, {C. E.} and Valiente-Dobon, {J. J.} and D. Ward",

year = "2010",

month = dec,

day = "13",

doi = "10.1103/PhysRevC.82.061303",

language = "English",

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Davies, PJ, Afanasjev, AV, Wadsworth, R, Andreoiu, C, Austin, RAE, Carpenter, MP, Dashdorj, D, Finlay, P, Freeman, SJ, Garrett, PE, Goergen, A, Greene, J, Grinyer, GF, Hyland, B, Jenkins, DG, Johnston-Theasby, FL, Joshi, P, Macchiavelli, AO, Moore, F, Mukherjee, G, Phillips, AA, Reviol, W, Sarantites, D, Schumaker, MA, Seweryniak, D, Smith, MB, Svensson, CE, Valiente-Dobon, JJ & Ward, D 2010, 'Evidence of nontermination of collective rotation near the maximum angular momentum in Rb-75', Physical Review C, vol. 82, no. 6, 061303, pp. 1-5. https://doi.org/10.1103/PhysRevC.82.061303

TY - JOUR

T1 - Evidence of nontermination of collective rotation near the maximum angular momentum in Rb-75

AU - Davies, P. J.

AU - Afanasjev, A. V.

AU - Wadsworth, R

AU - Andreoiu, C.

AU - Austin, R. A. E.

AU - Carpenter, M. P.

AU - Dashdorj, D.

AU - Finlay, P.

AU - Freeman, S. J.

AU - Garrett, P. E.

AU - Goergen, A.

AU - Greene, J.

AU - Grinyer, G. F.

AU - Hyland, B.

AU - Jenkins, D. G.

AU - Johnston-Theasby, F. L.

AU - Joshi, P.

AU - Macchiavelli, A. O.

AU - Moore, F.

AU - Mukherjee, G.

AU - Phillips, A. A.

AU - Reviol, W.

AU - Sarantites, D.

AU - Schumaker, M. A.

AU - Seweryniak, D.

AU - Smith, M. B.

AU - Svensson, C. E.

AU - Valiente-Dobon, J. J.

AU - Ward, D.

PY - 2010/12/13

Y1 - 2010/12/13

N2 - Two of the four known rotational bands in Rb-75 were studied via the Ca-40(Ca-40,alpha p)Rb-75 reaction at a beam energy of 165 MeV. Transitions were observed up to the maximum spin I-max of the assigned configuration in one case and one-transition short of I-max in the other. Lifetimes were determined using the residual Doppler shift attenuation method. The deduced transition quadrupole moments show a small decrease with increasing spin, but remain large at the highest spins. The results obtained are in good agreement with cranked Nilsson-Strutinsky calculations, which indicate that these rotational bands do not terminate, but remain collective at I-max.

AB - Two of the four known rotational bands in Rb-75 were studied via the Ca-40(Ca-40,alpha p)Rb-75 reaction at a beam energy of 165 MeV. Transitions were observed up to the maximum spin I-max of the assigned configuration in one case and one-transition short of I-max in the other. Lifetimes were determined using the residual Doppler shift attenuation method. The deduced transition quadrupole moments show a small decrease with increasing spin, but remain large at the highest spins. The results obtained are in good agreement with cranked Nilsson-Strutinsky calculations, which indicate that these rotational bands do not terminate, but remain collective at I-max.

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KW - REGION

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U2 - 10.1103/PhysRevC.82.061303

DO - 10.1103/PhysRevC.82.061303

M3 - Article

SN - 2469-9985

VL - 82

SP - 1

EP - 5

JO - Physical Review C

JF - Physical Review C

IS - 6

M1 - 061303

ER -

Evidence of nontermination of collective rotation near the maximum angular momentum in Rb-75

Abstract

Keywords

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