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g-factor measurements at RISING: The cases of Sn-127 and Sn-128

Atanasova, L, Balabanski, DL, Chamoli, SK, Hass, M, Simpson, GS, Bazzacco, D, Becker, F, Bednarczyk, P, Benzoni, G, Blasi, N, Blazhev, A, Bracco, A, Brandau, C, Caceres, L, Camera, F, Crespi, FCL, Detistov, P, Doornenbal, P, Fahlander, C, Farnea, E, Georgiev, G, Gerl, J, Gladnishki, KA, Gorska, M, Grebosz, J, Hoischen, R, Ilie, G, Ionescu-Bujor, M, Iordachescu, A, Jungclaus, A, Lo Bianco, G, Kmiecik, M, Kojouharov, I, Kurz, N, Lakshmi, S, Lozeva, R, Maj, A, Montanari, D, Neyens, G, Pfuetzner, M, Pietri, S, Podolyak, Z, Prokopowicz, W, Rudolph, D, Rusev, G, Saito, TR, Saltarelli, A, Schaffner, H, Schwengner, R, Tashenov, S, Valiente-Dobon, JJ, Vermeulen, N, Walker, J, Werner-Malento, E, Wieland, O, Wollersheim, HJ, Grawe, H and Hjorth-Jensen, M (2010) g-factor measurements at RISING: The cases of Sn-127 and Sn-128 EPL, 91 (4), ARTN 4.

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Abstract

We report on g-factor measurements of the 19/2+ T1/2=4.5(3) μs isomer in 127Sn and the 10+ T1/2=2.69(23) μs isomer in 128Sn. These isomers were produced and spin-aligned in relativistic heavy-ion fragmentation at GSI and were selected and separated by the GSI fragment separator (FRS). The γ-rays of the isomeric decay were detected by the RISING γ-ray spectrometer. The method of time-differential perturbed angular distributions was utilized. The measured g-factors, g(19/2+; 127Sn)=− 0.17(2) and g(10+; 128Sn)=− 0.20(4), are compared with shell model calculations. The measured g-factors confirm the predominantly νh11/2− 2 and ν(s1/2− 1h11/2−2) character of the 10+ and 19/2− isomers in 128Sn and 127Sn, respectively. The results demonstrate the feasibility of the method for similar measurements in exotic neutron-rich nuclei.

Item Type: Article
Divisions : Faculty of Engineering and Physical Sciences > Physics
Authors :
AuthorsEmailORCID
Atanasova, LUNSPECIFIEDUNSPECIFIED
Balabanski, DLUNSPECIFIEDUNSPECIFIED
Chamoli, SKUNSPECIFIEDUNSPECIFIED
Hass, MUNSPECIFIEDUNSPECIFIED
Simpson, GSUNSPECIFIEDUNSPECIFIED
Bazzacco, DUNSPECIFIEDUNSPECIFIED
Becker, FUNSPECIFIEDUNSPECIFIED
Bednarczyk, PUNSPECIFIEDUNSPECIFIED
Benzoni, GUNSPECIFIEDUNSPECIFIED
Blasi, NUNSPECIFIEDUNSPECIFIED
Blazhev, AUNSPECIFIEDUNSPECIFIED
Bracco, AUNSPECIFIEDUNSPECIFIED
Brandau, CUNSPECIFIEDUNSPECIFIED
Caceres, LUNSPECIFIEDUNSPECIFIED
Camera, FUNSPECIFIEDUNSPECIFIED
Crespi, FCLUNSPECIFIEDUNSPECIFIED
Detistov, PUNSPECIFIEDUNSPECIFIED
Doornenbal, PUNSPECIFIEDUNSPECIFIED
Fahlander, CUNSPECIFIEDUNSPECIFIED
Farnea, EUNSPECIFIEDUNSPECIFIED
Georgiev, GUNSPECIFIEDUNSPECIFIED
Gerl, JUNSPECIFIEDUNSPECIFIED
Gladnishki, KAUNSPECIFIEDUNSPECIFIED
Gorska, MUNSPECIFIEDUNSPECIFIED
Grebosz, JUNSPECIFIEDUNSPECIFIED
Hoischen, RUNSPECIFIEDUNSPECIFIED
Ilie, GUNSPECIFIEDUNSPECIFIED
Ionescu-Bujor, MUNSPECIFIEDUNSPECIFIED
Iordachescu, AUNSPECIFIEDUNSPECIFIED
Jungclaus, AUNSPECIFIEDUNSPECIFIED
Lo Bianco, GUNSPECIFIEDUNSPECIFIED
Kmiecik, MUNSPECIFIEDUNSPECIFIED
Kojouharov, IUNSPECIFIEDUNSPECIFIED
Kurz, NUNSPECIFIEDUNSPECIFIED
Lakshmi, SUNSPECIFIEDUNSPECIFIED
Lozeva, RUNSPECIFIEDUNSPECIFIED
Maj, AUNSPECIFIEDUNSPECIFIED
Montanari, DUNSPECIFIEDUNSPECIFIED
Neyens, GUNSPECIFIEDUNSPECIFIED
Pfuetzner, MUNSPECIFIEDUNSPECIFIED
Pietri, SUNSPECIFIEDUNSPECIFIED
Podolyak, ZUNSPECIFIEDUNSPECIFIED
Prokopowicz, WUNSPECIFIEDUNSPECIFIED
Rudolph, DUNSPECIFIEDUNSPECIFIED
Rusev, GUNSPECIFIEDUNSPECIFIED
Saito, TRUNSPECIFIEDUNSPECIFIED
Saltarelli, AUNSPECIFIEDUNSPECIFIED
Schaffner, HUNSPECIFIEDUNSPECIFIED
Schwengner, RUNSPECIFIEDUNSPECIFIED
Tashenov, SUNSPECIFIEDUNSPECIFIED
Valiente-Dobon, JJUNSPECIFIEDUNSPECIFIED
Vermeulen, NUNSPECIFIEDUNSPECIFIED
Walker, JUNSPECIFIEDUNSPECIFIED
Werner-Malento, EUNSPECIFIEDUNSPECIFIED
Wieland, OUNSPECIFIEDUNSPECIFIED
Wollersheim, HJUNSPECIFIEDUNSPECIFIED
Grawe, HUNSPECIFIEDUNSPECIFIED
Hjorth-Jensen, MUNSPECIFIEDUNSPECIFIED
Date : 1 August 2010
Identification Number : 10.1209/0295-5075/91/42001
Uncontrolled Keywords : Science & Technology, Physical Sciences, Physics, Multidisciplinary, Physics, SPIN-ALIGNMENT, FRAGMENTATION, GSI, FISSION, ISOMER, BEAMS
Additional Information : Copyright EPLA, 2010
Depositing User : Symplectic Elements
Date Deposited : 14 Sep 2012 14:44
Last Modified : 17 Jan 2015 14:50
URI: http://epubs.surrey.ac.uk/id/eprint/711997

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