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  1. No Access

    Article

    New levels and reinvestigation of octupole correlations in 146,147La

    High spin states of neutron-rich 146,147La have been reinvestigated by \(\gamma\) ...

    E. H. Wang, W. Lewis, C. J. Zachary, J. H. Hamilton… in The European Physical Journal A (2017)

  2. No Access

    Chapter

    New Insights into the Structure of Neutron-Rich Nuclei \(A=108-118\) and \(^{160-162}\) Gd

    The level structures of \(^{108,110,112}\) Ru ( \(Z=44\) ...

    J. H. Hamilton, Y. X. Luo, A. V. Ramayya… in Nuclear Physics: Present and Future (2015)

  3. No Access

    Article

    One-phonon octupole vibrational states in 211At, 212Rn, 213Fr and 214Ra with N = 126

    Excited high spin states in 211At, 212Rn, 213Fr and 214Ra with N = 126 are reorganized and interpreted in terms of the stretched weak coupling of an octupole 3− phonon. Nearly identical sequences of levels with Δ...

    J. K. Hwang, J. H. Hamilton, A. V. Ramayya in The European Physical Journal A (2013)

  4. No Access

    Article

    One-phonon octupole vibrational states in 136Xe, 137Cs, 138Ba, 140Ce and 142Nd with N = 82

    Excited high spin states in 136Xe, 137Cs, 138Ba, 140Ce and 142Nd with N = 82 are reorganized and interpreted in terms of the weak coupling mode of an octupole 3− phonon. Nearly identical sequences of levels with

    J. K. Hwang, J. H. Hamilton, A. V. Ramayya in The European Physical Journal A (2013)

  5. No Access

    Article

    New multi-phonon gamma vibrational bands in A∼110 neutron-rich nuclei

    The high spin states of neutron-rich 103Nb, 107Tc and 109Tc nuclei in A∼110 region have been investigated by measuring prompt γ-γ-γ coincident measurements populated with the spontaneous fission of 252Cf with the...

    ShengJiang Zhu, JianGuo Wang, Long Gu… in Science China Physics, Mechanics and Astro… (2011)

  6. Article

    Open Access

    High-spin states and a new band based on the isomeric state in 152Nd

    High-spin states of the neutron-rich 152Nd nucleus have been reinvestigated by measuring the prompt \( \gamma\) -rays in the spontaneous fission of 252Cf . The ground-state band ...

    E. Y. Yeoh, S. J. Zhu, J. H. Hamilton, A. V. Ramayya… in The European Physical Journal A (2010)

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  7. No Access

    Article

    Identification of the 109Xe and 105Te α-decay chain

    The α-decay chain 109Xe → 105Te → 101Sn was identified at the Holifield Radioactive Ion Beam Facility. Advances in digital electronics have made possible the identification of both alpha emitters in the same expe...

    S. N. Liddick, R. Grzywacz, C. Mazzocchi… in The European Physical Journal Special Topi… (2007)

  8. No Access

    Article

    Experiment aimed at the study of 252Cf binary and ternary fission

    A new experiment devoted to the fission of 252Cf is described. It continued a series of our experiments based on correlation measurements of γ rays emitted by fission fragment pairs. The measurements of γ-γ and γ...

    A. V. Daniel, J. H. Hamilton, A. V. Ramayya, A. S. Fomichev… in Physics of Atomic Nuclei (2006)

  9. No Access

    Article

    Bimodal fission in binary and ternary spontaneous fission of 252Cf

    The hot bimodal fission of 252Cf is reexamined with new high-statistics data. We constructed a γ-γ-γ coincidence cube for binary fission and LCP-gated γ-γ matrix for ternary fission. By identifying the secondary ...

    D. Fong, J. H. Hamilton, A. V. Ramayya, J. K. Hwang, C. Goodin… in Physics of Atomic Nuclei (2006)

  10. No Access

    Article

    Collective bands in 104,106,108Mo

    We have used our analysis of γ-γ-γ data (5.7 × 1011 triples and higher folds) taken with Gammasphere from prompt γ rays emitted in the spontaneous fission of 252Cf to study the collective bands in 104,106,108Mo. ...

    E. F. Jones, P. M. Gore, S. J. Zhu, J. H. Hamilton… in Physics of Atomic Nuclei (2006)

  11. No Access

    Article

    Investigations of short half-life states from SF of 252Cf

    By using different time-gated triple γ coincidence data, the half-lives (T1/2) of several short lived states in neutron-rich nuclei have been studied. The first excited states in the ground state bands often deca...

    D. Fong, J. K. Hwang, A. V. Ramayya… in The European Physical Journal A - Hadrons … (2005)

  12. No Access

    Article

    Shape transitions and triaxiality in neutron-rich odd-mass Y and Nb isotopes

    New level schemes of 99, 101Y and 101, 105Nd are established based on the measurement of prompt γ-rays from the fission of 252Cf at Gammasphere. Triaxial-rotor-plus-particle model calculations and fitting suggest...

    Y. X. Luo, J. O. Rasmussen, J. H. Hamilton… in The European Physical Journal A - Hadrons … (2005)

  13. No Access

    Article

    Study of the N = 77 odd- Z isotones near the proton-drip line

    The evolution of the πh11/2νh11/2 and πh11/2νs1/2 isomeric configurations was studied for the N = 77 isotones near the proton drip line. The decays of metastable levels in 140Eu, 142Tb , and 144Ho were measured b...

    M. N. Tantawy, C. R. Bingham, C. Mazzocchi… in The European Physical Journal A - Hadrons … (2005)

  14. No Access

    Article

    Soft chiral vibrations in 106Mo

    High-spin states in neutron-rich 106Mo were investigated by detecting the prompt γ-rays in the spontaneous fission of 252Cf with Gammasphere. Several new bands are observed. Two sets of ΔI = 1 bands in 106Mo are ...

    S. J. Zhu, J. H. Hamilton, A. V. Ramayya… in The European Physical Journal A - Hadrons … (2005)

  15. No Access

    Article

    Coulomb excitation and transfer reactions with neutron-rich radioactive beams

    Neutron-rich radioactive ion beams available from the HRIBF allow a variety of measurements around the 132Sn region, including Coulomb excitation and single-nucleon transfer. The B(E2;0+ → 2+) values for first 2+

    D. C. Radford, C. Baktash, C. J. Barton… in The European Physical Journal A - Hadrons … (2005)

  16. No Access

    Article

    Unexpected rapid variations in odd-even level staggering in gamma-vibrational bands

    Triple-γ coincidence data were used to study the γ-vibrational bands to 14+ in 104-106Mo, to 13+ in 108,110Ru and 17+ in 112Ru, and to 13+, 15+ in 112-116Pd. The even-odd spin energy level splittings show rapid v...

    P. M. Gore, E. F. Jones, J. H. Hamilton… in The European Physical Journal A - Hadrons … (2005)

  17. No Access

    Article

    Identification of levels in 162, 164Gd and decrease in moment of inertia between N = 98-100

    From prompt γ-γ-γ coincidence studies with a 252Cf source, the yrast levels were identified from 2+ to 16+ and 14+ in neutron-rich 162,164Gd, respectively. Transition energies between the same spin states are hig...

    E. F. Jones, J. H. Hamilton, P. M. Gore… in The European Physical Journal A - Hadrons … (2005)

  18. No Access

    Article

    Beta-delayed γ and neutron emission near the double shell closure at 78Ni

    An experiment was performed at the National Superconducting Cyclotron Laboratory at Michigan State University to investigate β decay of very neutron-rich cobalt isotopes. Beta-delayed neutron emission from 71-74C...

    C. Mazzocchi, R. Grzywacz, J. C. Batchelder… in The European Physical Journal A - Hadrons … (2005)

  19. No Access

    Article

    Half-life measurement of excited states in neutron-rich nuclei

    Half-lives (T1/2) of several states which decay by delayed γ transitions were determined from time-gated triple γ coincidence method. We determined, for the first time, the half-life of 330.6 + x state in 108Tc a...

    J. K. Hwang, A. V. Ramayya, J. H. Hamilton… in The European Physical Journal A - Hadrons … (2005)

  20. No Access

    Article

    Angular momenta of fission fragments in the α-accompanied fission of 252Cf

    For the first time, average angular momenta of the ternary fission fragments 100, 102Zr, 106Mo, 144, 146Ba and 138, 140, 142Xe from the α-accompanied fission of 252Cf were obtained from relative intensities of pr...

    M. Jandel, J. Kliman, L. Krupa, M. Morháč… in The European Physical Journal A - Hadrons … (2005)

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