Quadrupole collectivity in neutron-deficient Sn nuclei : 104Sn
This thesis is about the study of quadrupole collectivity in the neutron-deficient nucleus 104Sn using intermediate-energy Coulomb excitation. The B(E2; 0+1→ 2+1) value for the excitation of the first 2+ state in 104Sn has been measured to be 0.180(37) e2b2 relative to the well-known B(E2 ↑) value of 102Cd. This result disagrees by more than one sigma with a recently published measurement [1]. The result indicates that the most modern many-body calculations remain unable to describe the enhanced collectivity below mid-shell in Tin approaching N = Z = 50. The enhanced collectivity is attributed to proton particle-hole configurations beyond the necessarily limited shell-model spaces and suggests the asymmetry of the B(E2 ↑)-value trend around mid-shell to originate from enhanced proton excitations across Z = 50 as N = Z is approached.
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- In Collections
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Electronic Theses & Dissertations
- Copyright Status
- In Copyright
- Material Type
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Theses
- Authors
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Bader, Vincent Maximilian
- Thesis Advisors
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Gade, Alexandra
- Committee Members
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Brown, B. Alex
Duxbury, Phillip M.
Repko, Wayne W.
Syphers, Michael J.
- Date Published
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2014
- Subjects
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Many-body problem
Nuclear physics
Quadrupoles
- Program of Study
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Physics - Doctor of Philosophy
- Degree Level
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Doctoral
- Language
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English
- Pages
- xv, 152 pages
- ISBN
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9781303814952
1303814951
- Permalink
- https://doi.org/doi:10.25335/325h-q723