Spin-dependent γ softness or triaxiality in even-even 132-138Nd nuclei

  • The properties of γ instability in rapidly rotating even-even 132-138Nd isotopes have been investigated using the pairing-deformation self-consistent total-Routhian-surface calculations in a deformation space of (β2, γ, β4). It is found that even-even 134-138Nd nuclei exhibit triaxiality in both ground and excited states, even up to high-spin states. The lightest isotope possesses a well-deformed prolate shape without a γ deformation component. The current numerical results are compared with previous calculations and available observables such as quadrupole deformation β2 and the feature of γ-band levels, showing basically a general agreement with the observed trend of γ correlations (e.g. the pattern of the odd-even energy staggering of the γ band). The existing differences between theory and experiment are analyzed and discussed briefly.
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  • [1] Stránsk P, Frank A, Bijker R. J. Phys.: Conf. Ser., 2011, 322: 012018[2] degrd S W, Hagemann G B, Jensen D R et al. Phys. Rev. Lett., 2001, 86: 5866-5869[3] Bengtsson R, Frisk H, May F R et al. Nucl. Phys. A, 1984, 415: 189-214[4] Starosta K, Koike T, Chiara C J et al. Phys. Rev. Lett., 2001, 86: 971-974[5] Zamfir N V, Casten R F. Phys. Lett. B, 1991, 260: 265-270[6] Davydov A S, Filippov G F. Nucl. Phys., 1958, 8: 237-249[7] Wilets L, Jean M. Phys. Rev., 1956, 102: 788-796[8] Bender M, Heenen P H, Reinhard P G. Rev. Mod. Phys., 2003, 75: 121-180[9] Frauendorf S. Rev. Mod. Phys., 2001, 73: 463-514[10] LI Z P, Nikšić T, Vretenar D et al. Phys. Rev. C, 2010, 81: 064321[11] YAO J M, MENG J, RING P et al. Phys. Rev. C, 2009, 79: 044312[12] Bhat G H, Dar W A, Sheikh J A et al. Phys. Rev. C, 2014, 89: 014328[13] SHEN S F, ZHENG S J, XU F R et al. Phys. Rev. C, 2011, 84: 044315[14] LI H J, XIAO Z G, ZHU S J et al. Phys. Rev. C, 2013, 87: 057303[15] CHEN Y S, Frauendorf S, Leander G A. Phys. Rev. C, 1983, 28: 2437-2445[16] Saito T R, Saito N, Starosta K et al. Phys. Lett. B, 2008, 669: 19-23[17] WANG H L, LIU H L, XU F R et al. Prog. Theo. Phys., 2012, 128: 363-371[18] WANG H L, LIU H L, XU F R. Phys. Scr., 2012, 86: 035201[19] Petrache C M, Bazzacco D, Lunardi S et al. Phys. Lett. B, 1996, 387: 31-36[20] Mukhopadhyay S, Almehed D, Garg U et al. Phys. Rev. C, 2008, 78: 034311[21] Petrache C M, Bianco G L, Ward D et al. Phys. Rev. C, 1999, 61: 011305(R)[22] Wadsworth R, O'Donnell J M, Watson D L et al. Nucl. Phys., 1988, 14: 239-251[23] Angelis G D, Cardona M A, Poli M D et al. Phys. Rev. C, 1994, 49: 2990-2999[24] Paul E S, Beausang C W, Fossan D B et al. Phys. Rev. C, 1987, 36: 1853-1859[25] Kortelahti M O, Kern B D, Braga R A et al. Phys. Rev. C, 1990, 42: 1267-1278[26] Petrache C M, Frauendorf S, Matsuzaki M et al. Phys. Rev. C, 2012, 86: 044321[27] Satula W, Wyss R, Magierski P. Nucl. Phys. A, 1994, 578: 45-61[28] XU F R, Satula W, Wyss R. Nucl. Phys. A, 2000, 669: 119-134[29] Myers W D, Swiatecki W J. Nucl. Phys., 1966, 81: 1-60[30] Ćwiok S, Dudek J, Nazarewicz W et al. Comp. Phys. Comm., 1987, 46: 379-399[31] Greiner W, Maruhn J A. Nuclear Models, Berlin: Springer, 1996. 108-115[32] Nazarewicz W, Wyss R, Johnson A. Nucl. Phys. A, 1989, 503: 285-330[33] Strutinsky V M. Nucl. Phys. A, 1967, 95: 420-442[34] Pradhan H C, Nogami Y, Law J. Nucl. Phys. A, 1973, 201: 357-368[35] Mmller P, Nix J R. Nucl. Phys. A, 1992, 536: 20-60[36] Sakamoto H, Kishimoto T. Phys. Lett. B, 1990, 245: 321-324[37] Mmller P, Nix J R, Myers W D et al. At. Data Nucl. Data Tables, 1995, 59: 185-381[38] Mmller P, Bengtsson R, Carlsson B G et al. At. Data Nucl. Data Tables, 2008, 94: 758-782[39] Raman S, Nestor Jr. C W, Tikkanen P. At. Data Nucl. Data Tables, 2001, 78: 1-128[40] Kern B D, Mlekodaj R L, Leander G A et al. Phys. Rev. C, 1987, 36: 1514-1521[41] Petrache C M, SUN Y, Bazzacco D et al. Nucl. Phys. A, 1997, 617: 249-264[42] //www.nndc.bnl.gov/[43] Watanabe H, Yamaguchi K, Odahara et al. Phys. Lett. B, 2011, 704: 270-275[44] Gizon J, Gizon A, Diamond R M et al. Nucl. Phys., 1978, 4: L171-L175[45] McCutchan E A, Bonatsos D, Zamfir N V et al. Phys. Rev. C, 2007, 76: 024306[46] Toh Y, Chiara C J, McCutchan E A et al. Phys. Rev. C, 2013, 87: 041304(R)
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CHAI Qing-Zhen, WANG Hua-Lei, YANG Qiong and LIU Min-Liang. Spin-dependent γ softness or triaxiality in even-even 132-138Nd nuclei[J]. Chinese Physics C, 2015, 39(2): 024101. doi: 10.1088/1674-1137/39/2/024101
CHAI Qing-Zhen, WANG Hua-Lei, YANG Qiong and LIU Min-Liang. Spin-dependent γ softness or triaxiality in even-even 132-138Nd nuclei[J]. Chinese Physics C, 2015, 39(2): 024101.  doi: 10.1088/1674-1137/39/2/024101 shu
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Received: 2014-04-25
Revised: 1900-01-01
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Spin-dependent γ softness or triaxiality in even-even 132-138Nd nuclei

    Corresponding author: WANG Hua-Lei,

Abstract: The properties of γ instability in rapidly rotating even-even 132-138Nd isotopes have been investigated using the pairing-deformation self-consistent total-Routhian-surface calculations in a deformation space of (β2, γ, β4). It is found that even-even 134-138Nd nuclei exhibit triaxiality in both ground and excited states, even up to high-spin states. The lightest isotope possesses a well-deformed prolate shape without a γ deformation component. The current numerical results are compared with previous calculations and available observables such as quadrupole deformation β2 and the feature of γ-band levels, showing basically a general agreement with the observed trend of γ correlations (e.g. the pattern of the odd-even energy staggering of the γ band). The existing differences between theory and experiment are analyzed and discussed briefly.

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