First evidence for smooth band termination in valence space in the mass 130 region: Spectroscopy of 127La

C. M. Parry; R. Wadsworth; A. N. Wilson; A. J. Boston; P. J. Nolan; E. S. Paul; J. A. Sampson; A. T. Semple; C. Foin; J. Genevey; A. Gizon; J. Gizon; I. Ragnarsson; B. G. Dong

First evidence for smooth band termination in valence space in the mass 130 region: Spectroscopy of ¹²⁷La

C. M. Parry^*, R. Wadsworth, A. N. Wilson, A. J. Boston, P. J. Nolan, E. S. Paul, J. A. Sampson, A. T. Semple, C. Foin, J. Genevey, A. Gizon, J. Gizon, I. Ragnarsson, B. G. Dong

^*Corresponding author for this work

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

Abstract

High spin states in ¹²⁷La have been studied using the ³²S(¹⁰⁰Mo,p4n) reaction at a beam energy of 155 MeV. Gamma rays were detected using the EUROBALL III spectrometer. One of the side bands in ¹²⁷La is observed to be populated to a spin of 83/2⁺. These data are compared with cranked Nilsson-Strutinski calculations which suggest that the structure is a smoothly terminating band, in valence space, based upon a π[(g_7/2d_5/2)⁵(h_11/2)²]⊗ ν[(g_7/2d_5/2)¹²(h_11/2)⁶(d_3/2s_1/2)²] configuration, which can carry a maximum spin of 47.5ℏ. This is the first identification of such a structure in this mass region.

Original language	English
Article number	021303
Pages (from-to)	213031-213035
Number of pages	5
Journal	Physical Review C - Nuclear Physics
Volume	61
Issue number	2
Publication status	Published - Feb 2000

Cite this

Parry, C. M., Wadsworth, R., Wilson, A. N., Boston, A. J., Nolan, P. J., Paul, E. S., Sampson, J. A., Semple, A. T., Foin, C., Genevey, J., Gizon, A., Gizon, J., Ragnarsson, I., & Dong, B. G. (2000). First evidence for smooth band termination in valence space in the mass 130 region: Spectroscopy of ¹²⁷La. Physical Review C - Nuclear Physics, 61(2), 213031-213035. Article 021303.

@article{ae78018b90ef47eeb56f8fee9cb8d900,

title = "First evidence for smooth band termination in valence space in the mass 130 region: Spectroscopy of 127La",

abstract = "High spin states in 127La have been studied using the 32S(100Mo,p4n) reaction at a beam energy of 155 MeV. Gamma rays were detected using the EUROBALL III spectrometer. One of the side bands in 127La is observed to be populated to a spin of 83/2+. These data are compared with cranked Nilsson-Strutinski calculations which suggest that the structure is a smoothly terminating band, in valence space, based upon a π[(g7/2d5/2)5(h11/2)2]⊗ ν[(g7/2d5/2)12(h11/2)6(d3/2s1/2)2] configuration, which can carry a maximum spin of 47.5ℏ. This is the first identification of such a structure in this mass region.",

author = "Parry, {C. M.} and R. Wadsworth and Wilson, {A. N.} and Boston, {A. J.} and Nolan, {P. J.} and Paul, {E. S.} and Sampson, {J. A.} and Semple, {A. T.} and C. Foin and J. Genevey and A. Gizon and J. Gizon and I. Ragnarsson and Dong, {B. G.}",

year = "2000",

month = feb,

language = "English",

volume = "61",

pages = "213031--213035",

journal = "Physical Review C - Nuclear Physics",

issn = "0556-2813",

publisher = "American Physical Society",

number = "2",

}

TY - JOUR

T1 - First evidence for smooth band termination in valence space in the mass 130 region

T2 - Spectroscopy of 127La

AU - Parry, C. M.

AU - Wadsworth, R.

AU - Wilson, A. N.

AU - Boston, A. J.

AU - Nolan, P. J.

AU - Paul, E. S.

AU - Sampson, J. A.

AU - Semple, A. T.

AU - Foin, C.

AU - Genevey, J.

AU - Gizon, A.

AU - Gizon, J.

AU - Ragnarsson, I.

AU - Dong, B. G.

PY - 2000/2

Y1 - 2000/2

N2 - High spin states in 127La have been studied using the 32S(100Mo,p4n) reaction at a beam energy of 155 MeV. Gamma rays were detected using the EUROBALL III spectrometer. One of the side bands in 127La is observed to be populated to a spin of 83/2+. These data are compared with cranked Nilsson-Strutinski calculations which suggest that the structure is a smoothly terminating band, in valence space, based upon a π[(g7/2d5/2)5(h11/2)2]⊗ ν[(g7/2d5/2)12(h11/2)6(d3/2s1/2)2] configuration, which can carry a maximum spin of 47.5ℏ. This is the first identification of such a structure in this mass region.

AB - High spin states in 127La have been studied using the 32S(100Mo,p4n) reaction at a beam energy of 155 MeV. Gamma rays were detected using the EUROBALL III spectrometer. One of the side bands in 127La is observed to be populated to a spin of 83/2+. These data are compared with cranked Nilsson-Strutinski calculations which suggest that the structure is a smoothly terminating band, in valence space, based upon a π[(g7/2d5/2)5(h11/2)2]⊗ ν[(g7/2d5/2)12(h11/2)6(d3/2s1/2)2] configuration, which can carry a maximum spin of 47.5ℏ. This is the first identification of such a structure in this mass region.

UR - http://www.scopus.com/inward/record.url?scp=12944295297&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:12944295297

SN - 0556-2813

VL - 61

SP - 213031

EP - 213035

JO - Physical Review C - Nuclear Physics

JF - Physical Review C - Nuclear Physics

IS - 2

M1 - 021303

ER -

First evidence for smooth band termination in valence space in the mass 130 region: Spectroscopy of 127La

Abstract

Other files and links

Cite this

First evidence for smooth band termination in valence space in the mass 130 region: Spectroscopy of ¹²⁷La