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Staff Profile

Doctor Iyabo Usman

Position SENIOR LECTURER
QualificationsMSc, PhD, BSc(Hons)
Phone 0117176867
Email Iyabo.Usman@wits.ac.za
Organisational Unit School of Physics

Experimental Nuclear Structure Physics

Cluster states in nuclei

M y name is Iyabo Tinuola Usman, a black female experimental nuclear physicist. I obtained my higher education degrees in Experimental Nuclear Physics, both MSc and PhD at the University of the Witwatersrand, Johannesburg. I have worked as a Post-Doctoral Researcher in the department of nuclear physics at iThemba LABS in 2010-2012. Joined the Nuclear Structure Research Group, School of Physics University of the Witwatersrand in February 2012. My work entails performing nuclear physics experiments using light particle beams available at iThemba LABS SSC cyclotron in conjunction with the state-of-the-art K600 Magnetic Spectrometer, analyze the data obtained with sophisticated nuclear models/theories and supervise postgraduate students. I am a member of the South African Institute of Physics, Women in Nuclear – South Africa and Global, Women in Physics South Africa and the South African Radiation Protection Association.

Introduction to Reactor Physics (PHYS2011)

Mechanics for Engineers (PHYS1015)

Publications

I. Usman, Z. Buthelezi, J. Carter, G. R. J. Cooper, R.W. Fearick, S.V. Fortsch, H. Fujita, Y. Kalmykov, P. von Neumann-Cosel, R. Neveling, I. Poltoratska, A. Richter, A. Shevchenko, E. Sideras-Haddad, F.D. Smit and J. Wambach, “Level densities of 2 states in 40Ca from high-energy-resolution (p,p') experiments”,. Phys. Rev. C 84 (2011), 054322 pp 1 - 8.

I. Usman, Z. Buthelezi, J. Carter, G. R. J. Cooper, R. W. Fearick, S. V. Fortsch, H. Fujita, Y. Fujita, Y. Kalmykov, P. von Neumann-Cosel, R. Neveling, P. Papakonstantinou, A. Richter, R. Roth, A. Shevchenko, E. Sideras-Haddad and F. D. Smit, “Fine structure of the isoscalar giant quadrupole resonance in 40Ca due to Landau damping?”, Phys. Lett. B 698 (2011) pp. 191-195.

I. Usman, Z. Buthelezi, J. Carter, G. R. J. Cooper, R.W. Fearick, S.V. Fortsch, H. Fujita, Y. Kalmykov, P. von Neumann-Cosel, R. Neveling, I. Poltoratska, A. Richter, A. Shevchenko, E. Sideras-Haddad, F.D. Smit and J. Wambach, “2 level densities in 40Ca extracted from high energy-resolution experiments”, Journal of Physics: Conference Series 337 (2012), 012034.

R. Neveling, H. Fujita, F. D. Smit, T. Adachi, G. P. A. Berg, E. Z. Buthelezi, J. Carter, J. L. Conradie, M. Couder, R. W. Fearick, S. V. Fortsch, D. Fourie, Y. Fujita, J. Gorres, K. Hatanaka, A. M. Krumbholz, J. P. Mira, S. H. T. Murray, P. von Neumann-Cosel, S. O’Brein, P. Papka, I. Poltorratska, A. Richter, E. Sideras-Haddad, J. A. Swart, A. Tamii, I. T. Usman, J. J. van Zyl, M. Jingo and O. Kureba, “High energy-resolution zero-degree facility for light-ion scattering and reactions at iThemba LABS”, Nucl. Instr. and Methods in Physics Research, A 654 (2011) pp. 29-39.

B. Mouginot, E. Khan, R. Neveling, F. Azaiez, E. Z. Buthelezi, S. V. Fortsch, S. Franchoo, H. Fujita, J. Mabiala, J. P. Mira, A. Ramus, J. A. Scarpaci, F. D. Smit, I. Stefan, C. Swartz, and I. Usman, “Search for the giant pairing vibration through (p,t) reactions around 50 and 60 MeV”, Phys. Rev. C 83, (2011) 037302.

R. Neveling, H. Fujita, F. D. Smit, T. Adachi, G. P. A. Berg, E. Z. Buthelezi, J. Carter, J. L. Conradie, M. Couder, R. W. Fearick, S. V. Fortsch, D. Fourie, Y. Fujita, J. Gorres, K. Hatanaka, A. M. Krumbholz, J. P. Mira, S. H. T. Murray, P. von Neumann-Cosel, S. O’Brein, P. Papka, I. Poltorratska, A. Richter, E. Sideras-Haddad, J. A. Swart, A. Tamii, I. T. Usman and J. J. van Zyl, “A high energy-resolution zero-degree facility for (p,p’) and (p,t) reactions”, J. Phys.: Conf. Ser. 312 052016 (2011).

M. Freer, H. Fujita, Z. Buthelezi, J. Carter, R. W. Fearick, S. V. Fortsch, R. Neveling, S. M. Perez, P. Papka, F. D. Smit, J. A. Swartz, I. Usman, P. J. haigh, N. I. Ashwood, T. Bloxham, N. Curtis, P. McEwan, H. G. Bohlen, T. Dorsch and Tz. Kokalova “Cluster Structure of 12C and 11Be”, Nucl. Phys. A 834 (2010) pp. 621c-626c.

M. Freer, N. I. Ashwood, N. Curtis, J. Malcolm, T. Munoz-Britton, C. Wheldon, V. A. Ziman, J. Carter, H. Fujita, I. Usman, Z. Buthelezi, S. V. Fortsch, R. Neveling, S. M. Perez, F. D. Smit, R. W. Fearick, P. Papka, J. A. Swartz, S. Brown, W. N. Catford, G. Wilson, D. Bardayan, S. D. Pain, K. Grzywacz-Jones, N. Soic and N. L. Achouri, “Structure of 12C and 14C; cluster states”, Modern Physics Letters A (MPLA) Volume: 25, Issues: 21-23 (2010) pp. 1833-1837.

M. Freer, H. Fujita, Z. Buthelezi, J. Carter, R.W. Fearick, S. V. Förtsch, R. Neveling, S. M. Perez, P.Papka, F. D. Smit, J. A. Swart and I. Usman, “2 excitation of the 12C Hoyle state”, Phys. Rev. C 80, (2009) 041303(R).

A. Shevchenko, J. Carter, G .R. J. Cooper, R.W. Fearick, Y. Kalmykov, P. von Neumann-Cosel, V. Yu. Ponomarev, A. Richter, I. Usman and J. Wambach, “Analysis of fine structure in the nuclear continuum”, Phys. Rev. C 77, (2008) 024302.

I. Usman, Z. Buthelezi, J. Carter, G. R. J. Cooper, R. W. Fearick, S. V. Förtsch, H, Fujita, Y. Fujita, P. Von Neumann-Cosel, R. . Neveling, V Yu. Ponomarev, A. Richter, A. Shevchenko, E. Sideras-Haddad, F. D. Smit and J. Wambach, “iThemba LABS Annual Scientific Report Contributions 2008 and 2009.

 

 

List of conference contributions

 

I. Usman, Z. Buthelezi, J. Carter, G. R. J. Cooper, R. W. Fearick, S. V. Förtsch, H, Fujita, Y. Fujita, Y. Kalmykov, P. Von Neumann-Cosel, R. Neveling, V Yu. Ponomarev, A. Richter, A. Shevchenko, E. Sideras-Haddad, F. D. Smit and J. Wambach, “Probing the fine structure of the giant quadrupole resonance in 28Si using hadronic and leptonic reactions”, 55th Annual Conference of South Africa Institute of Physics (CSIR, South Africa) September 2010.

 

I. Usman, Z. Buthelezi, J. Carter, G. R. J. Cooper, R. W. Fearick, S. V. Förtsch, H, Fujita, Y. Fujita, Y. Kalmykov, P. Von Neumann-Cosel, R. Neveling, V Yu. Ponomarev, A. Richter, A. Shevchenko, E. Sideras-Haddad, F. D. Smit and J. Wambach, “Nuclear structure studies at intermediate energies using the K600 Magnetic Spectrometer of iThemba LABS”, NRF National Postdoctoral Research Forum, (Somerset West, South Africa) December 2010.

I. Usman, Z. Buthelezi, J. Carter, G. R. J. Cooper, R. W. Fearick, S. V. Förtsch, H, Fujita, Y. Fujita, Y. Kalmykov,  P. Von Neumann-Cosel, R. Neveling, I. Poltoratska, V Yu. Ponomarev, A. Richter, A. Shevchenko, E. Sideras-Haddad, F. D. Smit and J. Wambach, “2 level densities in 40Ca extracted from high energy-resolution experiments”, Nuclear Physics in Astrophysics-V conference (Eilat, Israel) April 2011.

I. Usman,  J. Carter, Z. Buthelezi, Y. Fujita, E. Sideras-Haddad, G. R. Cooper, R.W. Fearick, S.V. Förtsch, J. J. Lawrie, R. Neveling, F.D. Smit, Y. Kalmykov, P. von Neumann-Cosel, E. Sideras-Haddad , V. Yu Ponomarev, A. Richter, A. Shevchenko, J. Wambach, D. Lacroix and H. Fujita, J. Mira, M. Jingo, C. Kureba “Fine structure of E2 strength in one-proton-different nuclei from (p,p’) experiments”, 57th  Annual conference of South Africa Institute of Physics (Pretoria, South Africa) July 2012. 

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