Chinese Physics C > 1998, Vol. 22 > Issue(1): 1-3

Experimental Evidence for the Superdeformation in⁸¹Rb

Institute of Modern Physics, The Chinese Academy of Sciences, Lanzhou 730000Laboratori Nazionali di Legnaro, INFN, 35020 Legnaro PD, Italy

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Abstract：
High-spin states in ⁸¹Rb were populated in the ⁵⁵Mn( ³⁰Si, 2p2n) reaction at 130 MeV. Prompt γγγ-charged particle coincidences were observed using the GASP spectrometer in conjunction with the ΔE-E silicon ball (ISIS). A superdeformed band consisting of seven γ-ray transitions has been identified. The dynamic moment of inertia for the band is constant with a value of approximately 26.7 h ²/MeV throughout the whole observed rotational frequency. This band is interpreted to have a π5 ¹v5 ²intrinsic intruder configuration with a quadruple deformation β ₂of 0.51.

References

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P.J.Twinetal.Phys.Rev.Lett.,1986,57:811[2]P. J. Nolan, P. J. Twinetal. Annu. Rev.Nucl.Part.Sci.,1988,38:553[3]R.V.EJanssens,T.L.Khoo.Annu.Rev.Nucl.Part.Sci.,1991,41:321[4]I.Ragnarssonetal.Phys.Rep.,1978,45:1[5]W.Nazarewiczetal.Nucl.Phys.,1985,A435:397[6]J.Dudeketal.Phys.Rev.,1987,C35:1489[7]C.Baktashetal.Phys.Rev.Lett.,1995,74:1946[8]H.Q.Jinetal.Phys.Rev.Lett,1995,75:1471

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Pan Qiangyan, Luo Yixiao, De Poli and de Angelis. Experimental Evidence for the Superdeformation in ⁸¹Rb[J]. Chinese Physics C, 1998, 22(1): 1-3.

Pan Qiangyan, Luo Yixiao, De Poli and de Angelis. Experimental Evidence for the Superdeformation in ⁸¹Rb[J]. Chinese Physics C, 1998, 22(1): 1-3. shu

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Received: 1900-01-01
Revised: 1900-01-01

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沈阳化工大学材料科学与工程学院沈阳 110142

Experimental Evidence for the Superdeformation in⁸¹Rb

Corresponding author:Pan Qiangyan,

Institute of Modern Physics, The Chinese Academy of Sciences, Lanzhou 730000Laboratori Nazionali di Legnaro, INFN, 35020 Legnaro PD, Italy

Received Date:1900-01-01
Accepted Date:1900-01-01
Available Online:1998-01-05

Abstract:High-spin states in⁸¹Rb were populated in the⁵⁵Mn(³⁰Si, 2p2n) reaction at 130 MeV. Prompt γγγ-charged particle coincidences were observed using the GASP spectrometer in conjunction with the ΔE-E silicon ball (ISIS). A superdeformed band consisting of seven γ-ray transitions has been identified. The dynamic moment of inertia for the band is constant with a value of approximately 26.7 h²/MeV throughout the whole observed rotational frequency. This band is interpreted to have a π5¹v5²intrinsic intruder configuration with a quadruple deformation β₂of 0.51.