Universität zu Köln

Garrett, P. E., Rodriguez, T. R., Varela, A. Diaz, Green, K. L., Bangay, J., Finlay, A., Austin, R. A. E., Ball, G. C., Bandyopadhyay, D. S., Bildstein, V, Colosimo, S., Cross, D. S., Demand, G. A., Finlay, P., Garnsworthy, A. B., Grinyer, G. F., Hackman, G., Jigmeddorj, B., Jolie, J., Kulp, W. D., Leach, K. G., Morton, A. C., Orce, J. N., Pearson, C. J., Phillips, A. A., Radich, A. J., Rand, E. T., Schumaker, M. A., Svensson, C. E., Sumithrarachchi, C., Triambak, S., Warr, N., Wong, J., Wood, J. L. and Yates, S. W. (2020). Shape coexistence and multiparticle-multihole structures in Cd-110,Cd-112. Phys. Rev. C, 101 (4). COLLEGE PK: AMER PHYSICAL SOC. ISSN 2469-9993

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Abstract

From detailed spectroscopy of Cd-110 and Cd-112 following the beta(+)/EC decay of In-110,In-112 and the beta(-) decay of Ag-112, the presence of very weak decay branches from nonyrast states is revealed. In Cd-112, 2(5)(+) -> 0(4)(+) and 4(6)(+) -> 2(5)(+) transitions are observed that yield B(E2; 2(5)(+) -> 0(4)(+)) = 34 +/- 15 W.u. and B(E2; 4(6)(+) -> 2(5)(+)) = 77 +/- 30 W.u., respectively, clearly indicating a collective structure. In 110Cd, a weak decay branch from the 4(6)(+) level to the 2(5)(+) level is observed, and from a lifetime measurement following the (n, n gamma' reaction, B(E2; 4(6)(+) -> 2(5)(+)) = 55 +/- 14 W.u. is determined. A new branch is also observed for the decay of the 6(4)(+) level to the 4(6)(+) state, indicating that the sequence 2(5)(+), 4(6)(+), and 6(4)(+) forms part of a collective structure. The presence of 3(3)(+) and 5(2)(+) levels spaced between the previous sequence is highly suggestive of a gamma band built on the 0(2)(+) shape-coexisting intruder state. The 0(4)(+) levels in Cd-110,Cd-112,Cd-114 have preferred decays to the lowest 2(+) members of the intruder bands, and for 114Cd a previous measurement had established an enhanced B(E2; 0(4)(+) -> 2(3)(+)). The energy systematics of the 0(2)(+), 0(3)(+), and 0(4)(+) levels all display the characteristic parabolic-shaped pattern, suggesting that they are built on multiparticle-multihole proton excitations. The results are compared with beyond-mean-field calculations that reproduce qualitatively the observed levels and their decays and suggest that the 0(1)(+), 0(2)(+), 0(3)(+), and 0(4)(+) levels and the excited states built on them possess different deformations.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Garrett, P. E. UNSPECIFIED UNSPECIFIED UNSPECIFIED Rodriguez, T. R. UNSPECIFIED UNSPECIFIED UNSPECIFIED Varela, A. Diaz UNSPECIFIED UNSPECIFIED UNSPECIFIED Green, K. L. UNSPECIFIED UNSPECIFIED UNSPECIFIED Bangay, J. UNSPECIFIED UNSPECIFIED UNSPECIFIED Finlay, A. UNSPECIFIED UNSPECIFIED UNSPECIFIED Austin, R. A. E. UNSPECIFIED UNSPECIFIED UNSPECIFIED Ball, G. C. UNSPECIFIED UNSPECIFIED UNSPECIFIED Bandyopadhyay, D. S. UNSPECIFIED UNSPECIFIED UNSPECIFIED Bildstein, V UNSPECIFIED UNSPECIFIED UNSPECIFIED Colosimo, S. UNSPECIFIED UNSPECIFIED UNSPECIFIED Cross, D. S. UNSPECIFIED UNSPECIFIED UNSPECIFIED Demand, G. A. UNSPECIFIED UNSPECIFIED UNSPECIFIED Finlay, P. UNSPECIFIED UNSPECIFIED UNSPECIFIED Garnsworthy, A. B. UNSPECIFIED UNSPECIFIED UNSPECIFIED Grinyer, G. F. UNSPECIFIED UNSPECIFIED UNSPECIFIED Hackman, G. UNSPECIFIED UNSPECIFIED UNSPECIFIED Jigmeddorj, B. UNSPECIFIED UNSPECIFIED UNSPECIFIED Jolie, J. UNSPECIFIED UNSPECIFIED UNSPECIFIED Kulp, W. D. UNSPECIFIED UNSPECIFIED UNSPECIFIED Leach, K. G. UNSPECIFIED UNSPECIFIED UNSPECIFIED Morton, A. C. UNSPECIFIED UNSPECIFIED UNSPECIFIED Orce, J. N. UNSPECIFIED UNSPECIFIED UNSPECIFIED Pearson, C. J. UNSPECIFIED UNSPECIFIED UNSPECIFIED Phillips, A. A. UNSPECIFIED UNSPECIFIED UNSPECIFIED Radich, A. J. UNSPECIFIED UNSPECIFIED UNSPECIFIED Rand, E. T. UNSPECIFIED UNSPECIFIED UNSPECIFIED Schumaker, M. A. UNSPECIFIED UNSPECIFIED UNSPECIFIED Svensson, C. E. UNSPECIFIED UNSPECIFIED UNSPECIFIED Sumithrarachchi, C. UNSPECIFIED UNSPECIFIED UNSPECIFIED Triambak, S. UNSPECIFIED UNSPECIFIED UNSPECIFIED Warr, N. UNSPECIFIED UNSPECIFIED UNSPECIFIED Wong, J. UNSPECIFIED UNSPECIFIED UNSPECIFIED Wood, J. L. UNSPECIFIED UNSPECIFIED UNSPECIFIED Yates, S. W. UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-337326
DOI:	10.1103/PhysRevC.101.044302
Journal or Publication Title:	Phys. Rev. C
Volume:	101
Number:	4
Date:	2020
Publisher:	AMER PHYSICAL SOC
Place of Publication:	COLLEGE PK
ISSN:	2469-9993
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language NUCLEAR-DATA SHEETS; LOW-SPIN STATES; INELASTIC-SCATTERING; VIBRATIONAL NUCLEI; CD-112; EXCITATIONS; CD; 114CD; BANDS Multiple languages Physics, Nuclear Multiple languages
URI:	http://kups.ub.uni-koeln.de/id/eprint/33732