Two-neutron alignment and shape changes in 69As

A. M. Bruce; J. Simpson; D. D. Warner; C. Baktash; C. J. Barton; M. A. Bentley; M. J. Brinkman; R. A. Cunningham; E. Dragulescu; L. Frankland; T. N. Ginter; C. J. Gross; R. C. Lemmon; B. MacDonald; C. D. O'Leary; S. M. Vincent; R. Wyss; C. H. Yu; N. V. Zamfir

doi:10.1103/PhysRevC.62.027303

Two-neutron alignment and shape changes in ⁶⁹As

A. M. Bruce, J. Simpson, D. D. Warner, C. Baktash, C. J. Barton, M. A. Bentley, M. J. Brinkman, R. A. Cunningham, E. Dragulescu, L. Frankland, T. N. Ginter, C. J. Gross, R. C. Lemmon, B. MacDonald, C. D. O'Leary, S. M. Vincent, R. Wyss, C. H. Yu, N. V. Zamfir

Neutrino Research

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12 Scopus citations

Abstract

The nucleus ⁶⁹As was studied using the ⁴⁰Ca(³²S,3p)⁶⁹As reaction at a beam energy of 105 MeV. An extension of the band built on the g_9/2 orbital was observed to exhibit a band crossing at a rotational frequency of 0.511 MeV with an associated alignment of 7ℏ. This alignment is interpreted as being due to a pair of g_9/2 neutrons. Total Routhian surface calculations have been carried out which confirm that the shape of this nucleus changes from oblate at low spin to a triaxial prolate shape at intermediate spin. * Present address: Physics Department, University of Notre Dame, Notre Dame, IN 46556.

Original language	English
Article number	027303
Pages (from-to)	273031-273034
Number of pages	4
Journal	Physical Review C - Nuclear Physics
Volume	62
Issue number	2
DOIs	https://doi.org/10.1103/PhysRevC.62.027303
State	Published - Aug 2000

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Bruce, A. M., Simpson, J., Warner, D. D., Baktash, C., Barton, C. J., Bentley, M. A., Brinkman, M. J., Cunningham, R. A., Dragulescu, E., Frankland, L., Ginter, T. N., Gross, C. J., Lemmon, R. C., MacDonald, B., O'Leary, C. D., Vincent, S. M., Wyss, R., Yu, C. H., & Zamfir, N. V. (2000). Two-neutron alignment and shape changes in ⁶⁹As. Physical Review C - Nuclear Physics, 62(2), 273031-273034. Article 027303. https://doi.org/10.1103/PhysRevC.62.027303

@article{31fce746cbae48e08731660aab1d171d,

title = "Two-neutron alignment and shape changes in 69As",

abstract = "The nucleus 69As was studied using the 40Ca(32S,3p)69As reaction at a beam energy of 105 MeV. An extension of the band built on the g9/2 orbital was observed to exhibit a band crossing at a rotational frequency of 0.511 MeV with an associated alignment of 7ℏ. This alignment is interpreted as being due to a pair of g9/2 neutrons. Total Routhian surface calculations have been carried out which confirm that the shape of this nucleus changes from oblate at low spin to a triaxial prolate shape at intermediate spin. * Present address: Physics Department, University of Notre Dame, Notre Dame, IN 46556.",

author = "Bruce, {A. M.} and J. Simpson and Warner, {D. D.} and C. Baktash and Barton, {C. J.} and Bentley, {M. A.} and Brinkman, {M. J.} and Cunningham, {R. A.} and E. Dragulescu and L. Frankland and Ginter, {T. N.} and Gross, {C. J.} and Lemmon, {R. C.} and B. MacDonald and O'Leary, {C. D.} and Vincent, {S. M.} and R. Wyss and Yu, {C. H.} and Zamfir, {N. V.}",

year = "2000",

month = aug,

doi = "10.1103/PhysRevC.62.027303",

language = "English",

volume = "62",

pages = "273031--273034",

journal = "Physical Review C - Nuclear Physics",

issn = "0556-2813",

number = "2",

}

Bruce, AM, Simpson, J, Warner, DD, Baktash, C, Barton, CJ, Bentley, MA, Brinkman, MJ, Cunningham, RA, Dragulescu, E, Frankland, L, Ginter, TN, Gross, CJ, Lemmon, RC, MacDonald, B, O'Leary, CD, Vincent, SM, Wyss, R, Yu, CH & Zamfir, NV 2000, 'Two-neutron alignment and shape changes in ⁶⁹As', Physical Review C - Nuclear Physics, vol. 62, no. 2, 027303, pp. 273031-273034. https://doi.org/10.1103/PhysRevC.62.027303

TY - JOUR

T1 - Two-neutron alignment and shape changes in 69As

AU - Bruce, A. M.

AU - Simpson, J.

AU - Warner, D. D.

AU - Baktash, C.

AU - Barton, C. J.

AU - Bentley, M. A.

AU - Brinkman, M. J.

AU - Cunningham, R. A.

AU - Dragulescu, E.

AU - Frankland, L.

AU - Ginter, T. N.

AU - Gross, C. J.

AU - Lemmon, R. C.

AU - MacDonald, B.

AU - O'Leary, C. D.

AU - Vincent, S. M.

AU - Wyss, R.

AU - Yu, C. H.

AU - Zamfir, N. V.

PY - 2000/8

Y1 - 2000/8

N2 - The nucleus 69As was studied using the 40Ca(32S,3p)69As reaction at a beam energy of 105 MeV. An extension of the band built on the g9/2 orbital was observed to exhibit a band crossing at a rotational frequency of 0.511 MeV with an associated alignment of 7ℏ. This alignment is interpreted as being due to a pair of g9/2 neutrons. Total Routhian surface calculations have been carried out which confirm that the shape of this nucleus changes from oblate at low spin to a triaxial prolate shape at intermediate spin. * Present address: Physics Department, University of Notre Dame, Notre Dame, IN 46556.

AB - The nucleus 69As was studied using the 40Ca(32S,3p)69As reaction at a beam energy of 105 MeV. An extension of the band built on the g9/2 orbital was observed to exhibit a band crossing at a rotational frequency of 0.511 MeV with an associated alignment of 7ℏ. This alignment is interpreted as being due to a pair of g9/2 neutrons. Total Routhian surface calculations have been carried out which confirm that the shape of this nucleus changes from oblate at low spin to a triaxial prolate shape at intermediate spin. * Present address: Physics Department, University of Notre Dame, Notre Dame, IN 46556.

UR - http://www.scopus.com/inward/record.url?scp=12944277044&partnerID=8YFLogxK

U2 - 10.1103/PhysRevC.62.027303

DO - 10.1103/PhysRevC.62.027303

M3 - Article

AN - SCOPUS:12944277044

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VL - 62

SP - 273031

EP - 273034

JO - Physical Review C - Nuclear Physics

JF - Physical Review C - Nuclear Physics

IS - 2

M1 - 027303

ER -

Two-neutron alignment and shape changes in ⁶⁹As

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