• Accurate Laboratory Wavelengths of the A1Π(υ' = 0-5)-X1Σ+(υ'' = 0) Vibronic Bands of 12C17O and 12C18O 

      Du Plessis, Anton; Rohwer, Erich G.; Steenkamp, Christine M. (IOP Science, 2006)
      Twenty nine rovibronic lines of 12C17O for which laboratory wavelengths were previously unavailable were detected in laser-induced fluorescence excitation spectra of the six vibronic bands A1Π(υ' = 0-5)-X1Σ+(υ'' = 0). ...
    • Accurate laboratory wavelengths of the e 3 Σ–(ν' = 5) – X 1 Σ+(ν'' = 0) band of 12C16O 

      Dickenson, G. D.; Nortje, A. C.; Steenkamp, C. M.; Rohwer, E. G.; Du Plessis, A. (IOP Science, 2010)
      The forbidden singlet-triplet transitions of carbon monoxide (CO) are important in the interpretation of vacuum ultraviolet interstellar absorption spectra and in particular for the measurement of large CO column densities. ...
    • Accurate laboratory wavelengths of the vacuum ultraviolet A(v'=3)-X(v''=0) band of 12C17O and 12C18O 

      Steinmann, Christine M.; Rohwer, Erich G.; Stafast, Herbert (IOP Science, 2003)
      Six individual rotational lines (J'' ≤ 3) of 12C17O, as well as four of 12C18O, were detected in the A 1Π(v' = 3)-X 1Σ+(v'' = 0) vibronic band, and their wavelengths determined using neighboring 12C16O and 13C16O lines as ...
    • Advancing X-ray micro computed tomography in Africa : going far, together 

      Du Plessis, Anton; Le Roux, Stephan G.; Tshibalanganda, Muofhe (Elsevier, 2019)
      X-ray micro computed tomography (microCT) is a high resolution non-destructive materials imaging technology and is emerging as a powerful tool for industrial and scientific research applications. The aim of this review ...
    • Angular correlation measurement with the iThemba LABS segmented clover detector 

      Shirinda, O.; Lawriea, E. A.; Buchera, T. D.; Mthembua, S. H.; Dinoko, T. R. S.; Easton, J. L.; Mtshali, W. X.; Noncolela, S. P.; Duprez, D.; Lawrie, J. J. (Jagellonian University, 2019)
      Measurements of the angular correlation function W(θ) were performed with the iThemba LABS segmented clover detector. A set of measurements with radioactive sources and irradiated targets was carried out to check the ...
    • Anomalous scaling of dynamical large deviations 

      Nickelsen, Daniel; Touchette, Hugo (American Physical Society, 2018)
      The typical values and fluctuations of time-integrated observables of nonequilibrium processes driven in steady states are known to be characterized by large deviation functions, generalizing the entropy and free energy ...
    • Attractive electromagnetic Casimir stress on a spherical dielectric shell 

      Graham, N.; Quandt, M.; Weigel, H. (Elsevier, 2013)
      Based on calculations involving an idealized boundary condition, it has long been assumed that the stress on a spherical conducting shell is repulsive. We use the more realistic case of a Drude dielectric to show that the ...
    • Calculation of a complete set of spin observables for proton elastic scattering from stable and unstable nuclei 

      Yahya, W. A.; Van Der Ventel, B. I. S.; Kaya, B. C. Kimene; Bark, R. A. (American Physical Society, 2018)
      A microscopic study of proton elastic scattering from unstable nuclei at intermediate energies using a relativistic formalism is presented. We have employed both the original relativistic impulse approximation (IA1) and ...
    • Characterization of the proposed 4−α cluster state candidate in ¹⁶O 

      Li, K. C. W.; Neveling, R.; Adsley, P.; Papka, P.; Smit, F. D.; Brummer, J. W.; Diget, C. Aa.; Freer, M.; Harakeh, M. N.; Kokalova, Tz.; Nemulodi, F.; Pellegri, L.; Rebeiro, B.; Swartz, J. A.; Triambak, S.; Van Zyl, J. J.; Wheldon, C. (American Physical Society, 2017)
      The 0¹⁶O(α,α′) reaction was studied at θlab=0∘ at an incident energy of Elab=200 MeV using the K600 magnetic spectrometer at iThemba LABS. Proton decay and α decay from the natural parity states were observed in a ...
    • Chiral bands in 193Tl 

      Ndayishimye, J.; Lawrie, E. A.; Shirinda, O.; Easton, J. L.; Wyngaardt, S. M.; Bark, R. A.; Bvumbi, S. P.; Dinoko, T. R. S.; Jones, P.; Kheswa, N. Y.; Lawrie, J. J.; Majola, S. N. T.; Masiteng, P. L.; Negi, D.; Orce, J. N.; Papka, P.; Sharpey-Schafer, J. F.; Stankiewicz, M.; Wiedeking, M. (Jagiellonian University, 2017-03)
      Since the introduction of chirality in nuclei, the search for chiral candidates in different mass regions has been a hot topic for about two decades. At iThemba LABS, a new chiral symmetry region, the thallium isotopes with ...
    • Chiral geometry and rotational structure for ¹³⁰Cs in the projected shell model 

      Chen, F. Q.; Meng, Jie; Zhang, S. Q. (Elsevier, 2018)
      The projected shell model with configuration mixing for nuclear chirality is developed and applied to the observed rotational bands in the chiral nucleus 130Cs. For the chiral bands, the energy spectra and electromagnetic ...
    • A class of spatio-temporal and causal stochastic processes, with application to multiscaling and multifractality 

      Schmiegel, Schmiegel; Barndorff-Nielsen, Ole E.; Eggers, Hans C. (Academy of Science for South Africa, 2005)
      We present a general class of spatio-temporal stochastic processes describing the causal evolution of a positive-valued field in space and time. The field construction is based on independently scattered random measures ...
    • Classical and quantum filaments in the ground state of trapped dipolar Bose gases 

      Cinti, Fabio; Boninsegni, Massimo (American Physical Society, 2017)
      We study, by quantum Monte Carlo simulations, the ground state of a harmonically confined dipolar Bose gas with aligned dipole moments and with the inclusion of a repulsive two-body potential of varying range. Two different ...
    • Classical dynamics on three-dimensional fuzzy space 

      Scholtz, F. G. (American Physical Society, 2018)
      We derive the path integral action for a particle moving in three-dimensional fuzzy space. From this we extract the classical equations of motion. These equations have rather surprising and unconventional features: they ...
    • Comparison of double-folding effective interactions within the cluster model 

      Kaya, B. D. C. Kimene; Wyngaardt, S. M.; Ibrahim, T. T.; Yahya, W. A. (American Physical Society, 2018)
      Cluster-core hybrid potentials with Woods-Saxon plus cubic terms have been constructed to account for both the decay properties and positive-parity ground-state bands in 212Po, 218Rn, 222Ra, and 228Th. The hybrid ...
    • Competition of rotation around the intermediate and long axes in 193Tl 

      Ndayishimye, J.; Lawrie, E. A.; Shirinda, O.; Easton, J. L.; Lawrie, J. J.; Wyngaardt, S. M.; Bark, R. A.; Bucher, T. D.; Bvumbi, S. P.; Dinoko, T. R. S.; Jones, P.; Kheswa, N. Y.; Majola, S. N. T.; Masiteng, P. L.; Negi, D.; Orce, J. N.; Sharpey-Schafer, J. F.; Wiedeking, M. (American Physical Society, 2019)
      High-spin states in ¹⁹³Tl were studied and the level scheme was revised and extended including the observation of new rotational bands. A surprising competition between bands built on the same πh9/2⊗νi13/2⁻² nucleon ...
    • Consistency between SU(3) and SU(2) covariant baryon chiral perturbation theory for the nucleon mass 

      Ren, Xiu-Lei; Alvarez-Ruso, L.; Geng, Li-Sheng; Ledwig, Tim; Meng, Jie; Vacas, M. J. Vicente (Elsevier, 2017)
      Treating the strange quark mass as a heavy scale compared to the light quark mass, we perform a matching of the nucleon mass in the SU(3) sector to the two-flavor case in covariant baryon chiral perturbation theory. The ...
    • The CT scanner facility at Stellenbosch University : an open access X-ray computed tomography laboratory 

      Du Plessis, Anton; Le Roux, Stephan Gerhard; Guelpa, Anina (Elsevier, 2016-10)
      The Stellenbosch University CT Scanner Facility is an open access laboratory providing non-destructive Xray computed tomography (CT) and a high performance image analysis services as part of the Central Analytical Facilities ...
    • Defect-induced supersolidity with soft-core bosons 

      Cinti, F.; Macri, T.; Lechner, W.; Pupillo, G.; Pohl, T. (Nature Publishing Group, 2014)
      More than 40 years ago, Andreev, Lifshitz and Chester suggested the possible existence of a peculiar solid phase of matter, the microscopic constituents of which can flow superfluidly without resistance due to the formation ...
    • Deformation dependence of the isovector giant dipole resonance : the neodymium isotopic chain revisited 

      Donaldson, L. M.; Bertulani, C. A.; Carter, J.; Nesterenko, V. O.; Von Neumann-Cosel, P.; Neveling, R.; Ponomarev, V. Yu; Reinhard, P. G.; Usman, I. T.; Adsley, P.; Brummer, J. W.; Buthelezi, E. Z.; Cooper, G. R. J.; Fearick, R. W.; Fortsch, S. V.; Fujita, H.; Fujita, Y.; Jingo, M.; Kleinig, W.; Kureba, C. O.; Kvasil, J.; Latif, M.; Li, K. C. W.; Mira, J. P.; Nemulodi, F.; Papka, P.; Pellegri, L.; Pietralla, N.; Richter, A.; Sideras-Haddad, E.; Smit, F. D.; Steyn, G. F.; Swartz, J. A.; Tamii, A. (Elsevier, 2018)
      Proton inelastic scattering experiments at energy Ep=200MeV and a spectrometer scattering angle of 0° were performed on 144,146,148,150Nd and 152Sm exciting the IsoVector Giant Dipole Resonance (IVGDR). Comparison with ...