New sub-us Isomers in 125Sn, 127Sn, 129Sn and Isomer Systematics of 124-130Sn
- Lozeva, R. L.
- Simpson, G. S.
- Grawe, H.
- Neyens, G.
- Atanasova, L. A.
- Balabanski, D. L.
- Bazzacco, D.
- Becker, F.
- Bednarczyk, P.
- Benzoni, G.
- Blasi, N.
- Blazhev, A.
- Bracco, A.
- Brandau, C.
- Caceres, L.
- Camera, F.
- Chamoli, S. K.
- Crespi, F. C. L.
- Daugas, J. -M.
- Detistov, P.
- De Rydt, M.
- Doornenbal, P.
- Fahlander, Claes
- Farnea, E.
- Georgiev, G.
- Gerl, J.
- Gladnishki, K. A.
- Gorska, M.
- Grebosz, J.
- Hass, M.
- Hoischen, Robert
- Ilie, G.
- Ionescu-Bujor, M.
- Iordachescu, A.
- Jolie, J.
- Jungclaus, A.
- Kmiecik, M.
- Kojouharov, I.
- Kurz, N.
- Lakshmi, S. P.
- Lo Bianco, G.
- Mallion, S.
- Maj, A.
- Montanari, D.
- Perru, O.
- Pfuetzner, M.
- Pietri, S.
- Pinston, J. A.
- Podolyak, Zs.
- Prokopowicz, W.
- Rudolph, Dirk
- Rusev, G.
- Saitoh, T. R.
- Saltarelli, A.
- Schaffner, H.
- Schwengner, R.
- Tashenov, S.
- Turzo, K.
- Valiente-Dobon, J. J.
- Vermeulen, N.
- Walker, J.
- Werner-Malento, E.
- Wieland, O.
- Wollersheim, H. -J.
DOIAbstract
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...
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