A pocketful of tin isomers from heavy-ion collisions

Conference · Wed Jan 01 00:00:00 EST 1992

OSTI ID:7183223

Daly, P J; Broda, R; Fornal, B; Mayer, R H; Nisius, D; Bearden, I; Benet, P; Grabowski, Z W ^[1]; Lauritsen, T; Carpenter, M; Janssens, R V.F.; Khoo, T L; Liang, Y ^[2]; Lunardi, S ^[3]; Blomqvist, J ^[4]

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1. Purdue Univ., Lafayette, IN (United States)
2. Argonne National Lab., IL (United States)
3. Padova Univ., Padova (Italy)
4. Manne Siegbahn Inst. of Physics, Stockholm (Sweden)

Reaction products of {sup 122,124}Sn + {sup 76}Ge({sup 8O}Se) collisions 10--15% above the barrier have been studied by {gamma}-ray spectroscopy, and new yrast isomers in {sup 119--124}Sn isotopes have been identified and characterized. B(E2) values determined for ({nu}h{sub 11/2}){sup n} 10{sup +} {yields} 8{sup +} transitions in even-A Sn nuclei pinpoint half-filling of the {nu}h{sub 11/2} subshell close to N = 73. In odd-A Sn isotopes, 19/2{sup +} isomers with 1--10 {mu}s half-lives occur systematically, and higher-lying ({nu}h{sub ll/2}){sup n}v=3 27/2{sup {minus}} isomers in {sup 119}Sn and {sup 121}Sn have also been identified. These deep inelastic excitation processes were found to populate a large number of neutron-rich nuclei strongly enough for yrast spectroscopy studies.

• Research Organization: Argonne National Lab., IL (United States)
• Sponsoring Organization: USDOE; USDOE, Washington, DC (United States)
• DOE Contract Number: W-31109-ENG-38; FG02-87ER40346
• OSTI ID: 7183223
• Report Number(s): ANL/CP-76820; CONF-920555-2; ON: DE92019674
• Resource Relation: Conference: 4. international spring seminar on nuclear physics: the building blocks of nuclear structure, Amalfi (Italy), 18-22 May 1992
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
GERMANIUM 76 TARGET
TIN 122 REACTIONS
TIN 124 REACTIONS
SELENIUM 80 TARGET
TIN ISOTOPES
HEAVY ION REACTIONS
DEEP INELASTIC SCATTERING
GAMMA DECAY
GAMMA SPECTRA
GAMMA SPECTROSCOPY
HALF-LIFE
MULTIPOLE TRANSITIONS
YRAST STATES
CHARGED-PARTICLE REACTIONS
DAYS LIVING RADIOISOTOPES
DECAY
ENERGY LEVELS
ENERGY-LEVEL TRANSITIONS
INELASTIC SCATTERING
INTERACTIONS
ISOTOPES
LEPTON-BARYON INTERACTIONS
LEPTON-HADRON INTERACTIONS
LEPTON-NUCLEON INTERACTIONS
NUCLEAR DECAY
NUCLEAR REACTIONS
PARTICLE INTERACTIONS
RADIOISOTOPES
SCATTERING
SPECTRA
SPECTROSCOPY
TARGETS
YEARS LIVING RADIOISOTOPES
663450* - Heavy-Ion-Induced Reactions & Scattering- (1992-)
663550 - Nuclear Mass Ranges- A=59-89- (1992-)
663220 - Electromagnetic Transitions- (1992-)