G. Hackman

TRIUMF — Canada

Physics and Astronomy · Physical Sciences

38h-index4.9kcitations355works0.72yr avg
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Research Topics

Nuclear physics research studies(273), Nuclear Physics and Applications(128), Atomic and Molecular Physics(75), Quantum Chromodynamics and Particle Interactions(71), Astronomical and nuclear sciences(55)

Publications355 total

Direct measurement of $^{59}$Cu($p$,$α$)$^{56}$Ni precludes a strong NiCu cycle in Type-I X-ray bursts
arXiv (Cornell University)·2025Open Access
A Versatile Digital Data Acquisition System for the 8π Gamma-Ray Spectrometer
IEEE Transactions on Nuclear Science·2025
Intruder structures in <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mmultiscripts><mml:mi>Si</mml:mi><mml:mprescripts/><mml:none/><mml:mn>32</mml:mn></mml:mmultiscripts></mml:math> and <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mmultiscripts><mml:mi>Al</mml:mi><mml:mprescripts/><mml:none/><mml:mn>29</mml:mn></mml:mmultiscripts></mml:math>
Physical review. C·2025Open Access
Coulomb excitation of <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mmultiscripts><mml:mi>Sr</mml:mi><mml:mprescripts/><mml:none/><mml:mn>80</mml:mn></mml:mmultiscripts></mml:math> and the limits of the <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:mi>N</mml:mi><mml:mo>≈</mml:mo><mml:mi>Z</mml:mi><mml:mo>≈</mml:mo><mml:mn>40</mml:mn></mml:mrow></mml:math> island of deformation
Physical review. C·2025
Mirror symmetry in the f7/2 shell below 56Ni, excited states and electromagnetic transition rates in 55Ni and 55Co
Nuclear Physics A·2025
A \(\beta \)-decay Study of the Low-spin Structure of \(^{98}\)Zr
Acta Physica Polonica B Proceedings Supplement·2025Open Access
First Measurement of a Weak <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>r</mml:mi></mml:math>-Process Reaction on a Radioactive Nucleus
Physical Review Letters·2025· 4 citedOpen Access
Cross-shell excited states in 32Si and 29Al populated using fusion-evaporation
Nuclear Physics A·2025
<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:mi>B</mml:mi><mml:mo>(</mml:mo><mml:mi>E</mml:mi><mml:mn>2</mml:mn><mml:mo>)</mml:mo></mml:mrow></mml:math> measurements in the yrast band of <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mmultiscripts><mml:mi>Mg</mml:mi><mml:mprescripts/><mml:none/><mml:mn>28</mml:mn></mml:mmultiscripts></mml:math>: Implications for the <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:mi>N</mml:mi><mml:mo>=</mml:mo><mml:mn>20</mml:mn></mml:mrow></mml:math> island of inversion
Physical review. C·2024Open Access
Reevaluation of structures in <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mmultiscripts><mml:mi>Se</mml:mi><mml:mprescripts/><mml:none/><mml:mn>70</mml:mn></mml:mmultiscripts></mml:math> from combined conversion-electron and <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mi>γ</mml:mi></mml:math>-ray spectroscopy
Physical review. C·2024· 2 citedOpen Access
Coulomb Excitation of $^{80}$Sr and the limits of the $N = Z = 40$ island of deformation
arXiv (Cornell University)·2024Open Access
Cross-shell excited configurations in the structure of <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mmultiscripts><mml:mi>Si</mml:mi><mml:mprescripts/><mml:none/><mml:mn>34</mml:mn></mml:mmultiscripts></mml:math>
Physical review. C·2024· 2 citedOpen Access
Identifying the spin-trapped character of the <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mmultiscripts><mml:mi>Si</mml:mi><mml:mprescripts/><mml:none/><mml:mn>32</mml:mn></mml:mmultiscripts></mml:math> isomeric state
Physical review. C·2023· 5 citedOpen Access
Structure studies of <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mmultiscripts><mml:mi>Be</mml:mi><mml:mprescripts/><mml:none/><mml:mn>13</mml:mn></mml:mmultiscripts></mml:math> from the <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:mmultiscripts><mml:mi>Be</mml:mi><mml:mprescripts/><mml:none/><mml:mn>12</mml:mn></mml:mmultiscripts><mml:mo>(</mml:mo><mml:mi>d</mml:mi><mml:mo>,</mml:mo><mml:mi>p</mml:mi><mml:mo>)</mml:mo></mml:mrow></mml:math> reaction in inverse kinematics on a solid deuteron target
Physical review. C·2023· 4 citedOpen Access
Decay spectroscopy of <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mmultiscripts><mml:mi>Eu</mml:mi><mml:mprescripts/><mml:none/><mml:mn>160</mml:mn></mml:mmultiscripts></mml:math>: Quasiparticle configurations of excited states and structure of <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:msup><mml:mi>K</mml:mi><mml:mi>π</mml:mi></mml:msup><mml:mo>=</mml:mo><mml:msup><mml:mn>4</mml:mn><mml:mo>+</mml:mo></mml:msup></mml:mrow></mml:math> bandheads in <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mmultiscripts><mml:mi>Gd</mml:mi><mml:mprescripts/><mml:none/><mml:mn>160</mml:mn></mml:mmultiscripts></mml:math>
Physical review. C·2023Open Access
First Evidence of Axial Shape Asymmetry and Configuration Coexistence in <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mmultiscripts><mml:mrow><mml:mi>Zn</mml:mi></mml:mrow><mml:mprescripts/><mml:none/><mml:mrow><mml:mn>74</mml:mn></mml:mrow></mml:mmultiscripts></mml:mrow></mml:math>: Suggestion for a Northern Extension of the <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>N</mml:mi><mml:mo>=</mml:mo><mml:mn>40</mml:mn></mml:math> Island of Inversion
Physical Review Letters·2023· 15 citedOpen Access
Cross sections of the <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:mmultiscripts><mml:mi>Rb</mml:mi><mml:mprescripts/><mml:none/><mml:mn>83</mml:mn></mml:mmultiscripts><mml:mo>(</mml:mo><mml:mi>p</mml:mi><mml:mo>,</mml:mo><mml:mi>γ</mml:mi><mml:mo>)</mml:mo><mml:mmultiscripts><mml:mi>Sr</mml:mi><mml:mprescripts/><mml:none/><mml:mn>84</mml:mn></mml:mmultiscripts></mml:mrow></mml:math> and <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:mmultiscripts><mml:mi>Kr</mml:mi><mml:mprescripts/><mml:none/><mml:mn>84</mml:mn></mml:mmultiscripts><mml:mo>(</mml:mo><mml:mi>p</mml:mi><mml:mo>,</mml:mo><mml:mi>γ</mml:mi><mml:mo>)</mml:mo><mml:mmultiscripts><mml:mi>Rb</mml:mi><mml:mprescripts/><mml:none/><mml:mn>85</mml:mn></mml:mmultiscripts></mml:mrow></mml:math> reactions at energies characteristic of the astrophysical <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mi>γ</mml:mi></mml:math> process
Physical review. C·2023· 7 citedOpen Access
First application of Markov chain Monte Carlo-based Bayesian data analysis to the Doppler-shift attenuation method
Physics Letters B·2023· 2 citedOpen Access
Measurement of the <sup>86</sup>Kr(α,n)<sup>89</sup>Sr cross section at energies relevant for the weak r-process
EPJ Web of Conferences·2023· 5 citedOpen Access
Degradation of thin carbon-backed lithium fluoride targets bombarded by 68 MeV 17O beams
Nuclear Engineering and Technology·2022· 2 citedOpen Access
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Frequent Co-authors

C. E. Svensson(26), G. C. Ball(25), P. E. Garrett(20), J. C. Waddington(17), P. Finlay(15), F. Sarazin(15), R. A. E. Austin(14), C. J. Pearson(14), C. Andreoiu(14), G. F. Grinyer(13), A. A. Phillips(13), M. A. Schumaker(13), M. B. Smith(11), M. P. Carpenter(10), R. V. F. Janssens(10), T.E. Drake(10), H. C. Scraggs(10), S. M. Mullins(9), A. O. Macchiavelli(9), I. Ahmad(9)