@article{sheets_agvaanluvsan_becker_becvar_bredeweg_haight_jandel_krticka_mitchell_o'donnell_et al._2009, title={Test of the statistical model in Mo-96 with the BaF2 gamma calorimeter DANCE array}, volume={79}, ISSN={["1089-490X"]}, DOI={10.1103/physrevc.79.024301}, abstractNote={The {gamma}-ray cascades following the {sup 95}Mo(n,{gamma}){sup 96}Mo reaction were studied with the {gamma} calorimeter DANCE (Detector for Advanced Neutron Capture Experiments) consisting of 160 BaF{sub 2} scintillation detectors at the Los Alamos Neutron Science Center. The {gamma}-ray energy spectra for different multiplicities were measured for s- and p-wave resonances below 2 keV. The shapes of these spectra were found to be in very good agreement with simulations using the DICEBOX statistical model code. The relevant model parameters used for the level density and photon strength functions were identical with those that provided the best fit of the data from a recent measurement of the thermal {sup 95}Mo(n,{gamma}){sup 96}Mo reaction with the two-step-cascade method. The reported results strongly suggest that the extreme statistical model works very well in the mass region near A=100.}, number={2}, journal={PHYSICAL REVIEW C}, author={Sheets, S. A. and Agvaanluvsan, U. and Becker, J. A. and Becvar, F. and Bredeweg, T. A. and Haight, R. C. and Jandel, M. and Krticka, M. and Mitchell, G. E. and O'Donnell, J. M. and et al.}, year={2009}, month={Feb} }
 @article{sheets_agvaanluvsan_becker_becvar_bredeweg_haight_krticka_jandel_mitchell_o'donnell_et al._2007, title={Spin and parity assignments for Mo-94,Mo-95 neutron resonances}, volume={76}, ISSN={["1089-490X"]}, DOI={10.1103/physrevc.76.064317}, abstractNote={The {gamma} rays following the {sup 94,95}Mo(n,{gamma}) reactions were measured as a function of incident neutron energy by the time-of-flight method with the DANCE (Detector for Advanced Neutron Capture Experiments) array of 160 BaF{sub 2} scintillation detectors at the Los Alamos Neutron Science Center. The targets were enriched samples: 91.59% {sup 94}Mo and 96.47% {sup 95}Mo. The {gamma}-ray multiplicities and energy spectra for different multiplicities were measured in s- and p-wave resonances up to E{sub n}=10 keV for {sup 94}Mo and up to E{sub n}=2 keV for {sup 95}Mo. Definite spins and parities were assigned in {sup 96}Mo for about 60% of the resonances, and tentative spins and parities were assigned for the remaining resonances. In {sup 95}Mo the parities were determined for the observed resonances, confirming previously known assignments.}, number={6}, journal={PHYSICAL REVIEW C}, author={Sheets, S. A. and Agvaanluvsan, U. and Becker, J. A. and Becvar, F. and Bredeweg, T. A. and Haight, R. C. and Krticka, M. and Jandel, M. and Mitchell, G. E. and O'Donnell, J. M. and et al.}, year={2007}, month={Dec} }
 @article{salwen_sheets_cotanch_2004, title={BCS and attractive Hubbard model comparative study}, volume={70}, ISSN={["1098-0121"]}, DOI={10.1103/physrevb.70.064511}, abstractNote={We extend previous studies of the BCS canonical approach for the attractive Hubbard model. A derivation of the BCS formulation is presented for both the Hubbard and a simpler reduced Hamiltonian. Using direct diagonalization, exact one and two dimensional solutions for both Hamiltonians are compared to BCS variational calculations. Approximate and exact ground state energies and energy gaps are computed for different electron number systems as well as correlation observables not previously predicted. Reproducing published one dimensional findings, the BCS is an excellent approximation for the Hubbard ground state energy but not energy gap, a finding that remains true in two dimensions. Propagators and correlators are found more sensitive to wavefunctions and appreciable differences are computed with the Hubbard model exhibiting a weaker degree of superconductivity than the BCS. However for the reduced Hamiltonian model the BCS is an excellent approximation for all observables in both one and two dimensions.}, number={6}, journal={PHYSICAL REVIEW B}, author={Salwen, N and Sheets, SA and Cotanch, SR}, year={2004}, month={Aug} }