The excited levels of 126 Te have been studied using the ͑n , nЈ␥͒ reaction. Excitation functions, ␥␥ coincidences, angular distributions, and Doppler shifts were measured for ␥ rays from levels up to an excitation energy of 3.2 MeV; multipole-mixing and branching ratios and transition rates were deduced. Experimental values of electromagnetic transition rates were compared with the anharmonic vibrator model, the general collective model, the neutron-proton interacting boson model with intruder mixing, and particle-core coupling model calculations. No advantage is found in using an intruder description for the low-spin states of 126 Te. All models used reproduce some features of the level scheme and many transition rates, but the particle-core coupling model was found to have better overall success describing the observed properties of this nucleus.

No abstract

REPORT Public reporting burder for this collection of information is estibated to average 1 hour per response, including the time for reviewing instructions, searching existing data sources, gathering and maintaining the data needed, and completing and reviewing this collection of information. Send comments regarding this burden estimate or any other aspect of this collection of information, including suggestions for reducing this burder Investigation of Tellurium-130 nuclear structure using inelastic neutron scattering AUTHOR(S)Churchill, Tyler Hale, |d1981- FUNDING NUMBERS PERFORMING ORGANIZATION NAME(S) AND ADDRESS(ES)8. PERFORMING ORGANIZATION REPORT NUMBER SPONSORING/MONITORING AGENCY NAME(S) AND ADDRESS(ES) 10. SPONSORING/MONITORING AGENCY REPORT NUMBER US Naval Academy Annapolis, MD 21402Trident Scholar project report no. (2003) SUPPLEMENTARY NOTES 12a. DISTRIBUTION/AVAILABILITY STATEMENTThis document has been approved for public release; its distribution is UNLIMITED. 12b. DISTRIBUTION CODE ABSTRACT:The purpose of nuclear structure research is to understand the features of the nuclear force that determine the various ways a nucleus can behave upon excitation. Theoretical model calculations are compared to experimental data in order to understand which models better predict different nuclear properties. The tellurium-130 nucleus has two valence protons with respect to a closed proton shell and several different types of nuclear structure behavior are thought to be active. Experimental data were collected at the University of Kentucky Nuclear Structure Laboratory using a technique called inelastic neutron scattering. By scattering neutrons off of 130 Te, the nucleus was excited, and the resulting de-excitation gamma rays recorded as 130 Te excited states relaxed. Through analytical techniques, the energy level scheme has been constructed, and spectroscopic information such as lifetimes, level spins, and branching ratios has been obtained. The purpose of nuclear structure research is to understand the features of the nuclear force that determine the various ways a nucleus can behave upon excitation. Theoretical model calculations are compared to experimental data in order to understand which models better predict different nuclear properties. The tellurium-130 nucleus has two valence protons with respect to a closed proton shell and several different types of nuclear structure behavior are thought to be active.Experimental data were collected at the University of Kentucky Nuclear Structure Laboratory using a technique called inelastic neutron scattering. By scattering neutrons off of 130 Te, the nucleus was excited, and the resulting de-excitation gamma rays recorded as 130 Te excited states relaxed. Through analytical techniques, the energy level scheme has been constructed, and spectroscopic information such as lifetimes, level spins, and branching ratios has been obtained. The behavior of the 130 Te nucleus was examined from the viewpoints of the General Collective Model and the Particle-Core Vibratio...