Research Interests: Nuclear Structure Theory, Computational Physics

Refereed Publications

  • K = 0 + Bands in gadolinium Nuclei, by G. Popa, A. Aprahamian, A. M. Bruce, J. G. Hirsch, and J. P. Draayer, "CGS12 Capture Gamma -Ray Spectroscopy and Related Topics", AIP Conf. Proc. 819, p587, Notre Dame, Indiana, 4-9 Sept. 2005.
  • Systematics in the structure of low-lying, non-yrast band-head configurations of strongly deformed nuclei ., European Physics Journal A, vol. 25, no. 1, p451 (2005).
  • "Low energy 0+ excitations in 158Gd", by J. G. Hirsch, Gabriela Popa, Shelly R. Lesher, Ani Aprahamian, Carlos E. Vargas, Jerry P. Draayer, to appear in Revista Mexicana de Fisica (2005).nucl-th/0505056
  • Systematics in the structure of low-lying, nonyrast bandhead configurations of strongly deformed nuclei., by G. Popa, A. Georgieva, and J. P. Draayer, Physical Review C, Vol. 69, 064307 (2004).
  • E2 & M1 Strengths in Deformed Nuclei: Application of the Pseudo-SU(3) Model. (J. P. Draayer, G. Popa, J. G. Hirsch, and C. E. Vargas) - 2003 Dalian Symposium on Nuclear Physics (03DSNP), 2003.
  • Symmetries in strongly deformed nuclei., by J. P. Draayer, G. Popa, J. G. Hirsch, and Carlos E. Vargas, in .Symmetries in Nuclear Structure. 2003.
  • Microscopic interpretation of the K = 0+,2+ , bands of deformed nuclei in the framework of the pseudo SU(3) model., by G. Popa, A. Georgieva, and J. P. Draayer, "Computational and Group Theoretical Methods in Nuclear Physics", 2003.
  • Pseudo + quasi SU(3): Towards a shell-model description of heavy deformed nuclei., by Jorge G. Hirsch, Carlos E. Vargas, Gabriela Popa and Jerry P. Draayer, "Computational and Group Theoretical Methods in Nuclear Physics", Playa del Carmen, Mexico, Feb. 18-21, 2003. nucl-th/0304001
  • M1 Transitions in the SU(3) shell model., by G. Popa, J. G. Hirsch, J. P. Draayer, and C. Bahri, proceeding at the International Conference on Nuclear Structure, "Mapping the Triangle", AIP Conf. Proc. 638, 253 (2002).
  • Microscopic study of 156Gd., by J.G. Hirsch, G. Popa, C. Vargas, and J. P. Draayer, "CGS11 -11th International Symposium on Capture Gamma-Ray Spectroscopy and Related Topics", 2002.
  • Novel Applications of Group Theory in Nuclear Physics., by J. P. Draayer, J. G. Hirsch, G. Popa, Feng Pan, G. Stoitcheva, A. I. Georgieva, and K. D. Sviratcheva, proceeding at the ``IX International Conference on Symmetry Methods in Physics", Physics of Particles and Nuclei, Vol. 33, Suppl. 1, pp S25-36, 2002.
  • Microscopic description of odd- and even-mass Er isotopes., by J. G. Hirsch, G. Popa, C. E. Vargas, and J. P. Draayer, Heavy Ion Physics, p291 . 301, 16 1-4 (2002).
  • Microscopic Description of Heavy Deformed Nuclei., by J. G. Hirsch, C. E. Vargas, G. Popa, and J. P. Draayer, The Nuclear Many-Body Problem , 139-144, 2001.
  • E2 and M1 strengths in heavy deformed nuclei. by J. P. Draayer, G. Popa, and J. G. Hirsch, Acta Phys. Pol. B 32 2697-2710 (2001). nucl-th/0103067
  • Shell model description of normal parity bands in even-even heavy deformed nuclei., by G. Popa, J. G. Hirsch, and J. P. Draayer, Physical Review C, Vol. 62, 064313 (2000).
  • M1 strengths (scissors and twist modes) in heavy deformed nuclei 156,158,160Gd., by J. P. Draayer, G. Popa, J. Hirsch, and C. Vargas, Revista Mexicana de Fisica 46, Suplemento 1, 71-76 (2000).
  • Shell Model Description of 158Gd., by G. Popa, J. G. Hirsch, and J. P. Draayer, proceeding at Bologna 2000 . Structure of the Nucleus at the Dawn of the Century., 2000. nucl-th/0010016
  • Spectroscopic study of the 54Fe(16O,pn)68As reaction", by T. Badica, R. Dumitrescu, E. Jacob, A. Olariu, G. Popa, I. V. Popescu, N. Scantei, Nuclear Physics A 617 368-384 (1997).
  • Alpha and 12C radioactivities of 114Ba., by G. Popa, A. Sandulescu, I. Silisteanu, and W. Scheid, Frontier Topics in Nuclear Physics, 1993.

    Invited Talks:

  • "Microscopic description of heavy deformed nuclei", Department of Physics, Northeastern State University, Chicago, IL, April 06, 2005.
  • "Microscopic description of heavy deformed nuclei", Department of Physics, Louisiana State University in Shreveport, Oct 19, 2004.
  • "Microscopic description of heavy deformed nuclei", Ohio State University, Columbus, Ohio, May 27, 2004.
  • "Microscopic Interpretation of the excited K = 0+, 2+ bands of deformed nuclei", University of Notre Dame, Department of Physics, December 19, 2003.
  • "Microscopic Interpretation of the excited K = 0+, 2+ bands of deformed nuclei", Louisiana State University, Department of Physics, November 21, 2003.
  • Microscopic description of heavy deformed nuclei., Nuclear Physics Division, LLNL, May 01, 2003.
  • M1 transitions in heavy deformed nuclei., Alfred University, May 06, 2002.
  • Microscopic description of heavy deformed nuclei., Michigan State University, Department of Physics, April 02, 2002.

    Contributed Talks:

  • Microscopic description of heavy deformed nuclei., Department of Physics, University of Notre Dame, Feb 07, 2005.
  • On the 0+ states in heavy deformed nuclei., A.P.S. Annual Fall Meeting, Nuclear Physics div., Tucson, AZ, October 2003.
  • Microscopic Interpretation of the excited K = 0+, 2+ bands of deformed nuclei., Nuclear Physics Summer School, June 2003, http://www.phy.ornl.gov/workshops/npss03/popa.ppt, and A.P.S. Annual Meeting, Nuclear Physics div., Philadelphia, PA, April 2003.
  • Microscopic description of heavy deformed nuclei., RIT, Department of Physics, February 11, 2003.
  • Special Group Symmetries Involved in the Description of Nuclear Phenomena., Mathematics and Statistics Seminar, RIT, October 9, 2001.
  • Energy spectra and electromagnetic transitions of Dysprosium isotopes in the pseudo-SU(3) model., A.P.S. Annual Meeting, Nuclear Physics div., Washington D.C., April 2001. http://www.aps.org/meet/APR01/baps/abs/S1350011.html
  • Shell-model description of normal parity bands in 160,162,164Dy., Institute of Nuclear Theory, Nuclear Structure for the 21st Century, November 06, 2000. http://mocha.phys.washington.edu/int_talk/WorkShops/int_00_3/People/Popa_G
  • Microscopic description of the 156Gd in the pseudo-SU(3) shell model'., A.P.S. Annual Meeting, Nuclear Physics div., Long Beach, CA, April 28-May 02, 2000. http://www.eps.org/aps/meet/APR00/baps/abs/S8160008.html
  • Coupled Rotor Approximation to the Elliott Shell Model., A.P.S. Fall Meeting, Nuclear Physics Division, Santa Fe, NM, Oct 28 - Nov 2, 1998. http://www.aps.org/BAPSDNP98/abs/S4100.html.