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New sub-mu s isomers in Sn-125,Sn-127,Sn-129 and isomer systematics of Sn124-130

Lozeva, RL, Simpson, GS, Grawe, H, Neyens, G, Atanasova, LA, Balabanski, DL, Bazzacco, D, Becker, F, Bednarczyk, P, Benzoni, G, Blasi, N, Blazhev, A, Bracco, A, Brandau, C, Caceres, L, Camera, F, Chamoli, SK, Crespi, FCL, Daugas, J-M, Detistov, P, De Rydt, M, Doornenbal, P, Fahlander, C, Farnea, E, Georgiev, G, Gerl, J, Gladnishki, KA, Gorska, M, Grebosz, J, Hass, M, Hoischen, R, Ilie, G, Ionescu-Bujor, M, Iordachescu, A, Jolie, J, Jungclaus, A, Kmiecik, M, Kojouharov, I, Kurz, N, Lakshmi, SP, Lo Bianco, G, Mallion, S, Maj, A, Montanari, D, Perru, O, Pfuetzner, M, Pietri, S, Pinston, JA, Podolyak, Z, Prokopowicz, W, Rudolph, D, Rusev, G, Saitoh, TR, Saltarelli, A, Schaffner, H, Schwengner, R, Tashenov, S, Turzo, K, Valiente-Dobon, JJ, Vermeulen, N, Walker, J, Werner-Malento, E, Wieland, O and Wollersheim, H-J (2008) New sub-mu s isomers in Sn-125,Sn-127,Sn-129 and isomer systematics of Sn124-130 PHYSICAL REVIEW C, 77 (6). ? - ?. ISSN 0556-2813

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Official URL: http://dx.doi.org/10.1103/PhysRevC.77.064313

Abstract

New sub-mu s isomers have been observed in the neutron-rich Sn isotopes. Sn-125,Sn-127,Sn-129 nuclei have been produced in a relativistic fission reaction of U-238 on a Be-9 target at 750 A.MeV and by the fragmentation of Xe-136 at 600 A.MeV populating high-spin yrast states. In addition to the already known mu s isomers, three new ones with sub-mu s half-lives have been observed. These yrast isomers are the high-spin members of the nu(d(3/2)(-1)h(11/2)(-2)) and nu h(11/2)(-n), seniority v = 3 multiplets leading to isomeric (23/2(+)) and (27/2(-)) states, respectively. Added to the already known 19/2(+)mu s isomers in this region the current work completes the systematic information of neutron-hole excitations toward the filling of the last h(11/2) orbital at N = 82. The results are discussed in the framework of state-of-the-art shell-model calculations using realistic interactions.

Item Type:Article
Additional Information:Copyright 2008 The American Physical Society.
Uncontrolled Keywords:Science & Technology, Physical Sciences, Physics, Nuclear, Physics, HEAVY-ION COLLISIONS, GAMMA-RAY, TRANSITION-PROBABILITIES, YRAST ISOMERS, ENERGY-LEVELS, BETA-DECAY, ISOTOPES, NUCLEI, GSI, DETECTORS
Divisions:Faculty of Engineering and Physical Sciences > Physics
ID Code:711992
Deposited By:Mr Adam Field
Deposited On:22 Aug 2012 09:28
Last Modified:13 Jun 2013 02:36

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