• Production of 2\,^3S_1 positronium atoms by single-photon excitation in an electric field. A. M. Alonso, S. D. Hogan and F. B. Cassidy. Phys. Rev. A 95, 033408 (2017) DOI:10.1103/PhysRevA.95.033408.


  • SSPALS for atomic physics with positronium. Adam Deller, (2016) arXiv:1609.04993
  • A CF4 based positron trap. S. Marjanović, A. Banković, D. Cassidy, B. Cooper, A. Deller, S. Dujko and Z. Lj Petrović. J. Phys. B: At. Mol. Opt. Phys. 49, 215001  (2016) DOI:10.1088/0953-4075/49/21/215001
  • Electrostatically Guided Rydberg Positronium. A. Deller, A. M. Alonso, B. S. Cooper, S. D. Hogan, and D. B. Cassidy. Phys. Rev. Lett 117, 073202 (2016) DOI:10.1103/PhysRevLett.117.073202.
  • Measurement of Rydberg positronium fluorescence lifetimes. A. Deller, A. M. Alonso, B. S. Cooper, S. D. Hogan, and D. B. Cassidy. Phys. Rev. A 93, 062513  (2016) DOI:10.1103/PhysRevA.93.062513.
  • Formation of positron-atom bound states in collisions between Rydberg Ps and neutral atoms. A. R. Swann, D. B. Cassidy, A. Deller, and G. F. Gribakin, Phys. Rev. A 93, 052712 – Published 20 May 2016 DOI:10.1103/PhysRevA.93.052712
  • Single-shot positron annihilation lifetime spectroscopy with LYSO scintillators, A. M. Alonso, B. S. Cooper, A. Deller, and D. B. Cassidy, Nucl. Instrum. Methods Phys. Res. A  828, 163 (2016) DOI:10.1016/j.nima.2016.05.049.
  • Positronium production in cryogenic environments. B. S. Cooper, A. M. Alonso, A. Deller, L. Liszkay, and D. B. Cassidy, Phys. Rev. B 93, 125305 (2016) DOI:10.1103/PhysRevB.93.125305.
  • Positronium decay from n = 2 states in electric and magnetic fields. A. M. Alonso, B. S. Cooper, A. Deller, S. D. Hogan, and D. B. Cassidy, Phys. Rev. A. 93, 012506 (2016) DOI:10.1103/PhysRevA.93.012506.


  • Controlling Positronium Annihilation with Electric Fields.  A. M. Alonso, B. S. Cooper, A. Deller, S. D. Hogan and D. B. Cassidy, Phys. Rev. Lett. 115, 183401 (2015) DOI:10.1103/PhysRevLett.115.183401.
  • A trap-based pulsed positron beam optimised for positronium laser spectroscopy. B. S. Cooper, A. M. Alonso, A. Deller, T. E. Wall, and D. B. Cassidy, Rev. Sci. Instrum. 86, 103101 (2015) DOI:/10.1063/1.4931690.
  • Positronium emission and cooling in reflection and transmission from thin meso-structured silica films. S. L Andersen, D. B Cassidy, J. Chevallier, B. S. Cooper, A. Deller, T. E. Wall and U. I. Uggerhøj, J. Phys. B: At. Mol. Opt. Phys. 48, 204003 (2015) DOI:10.1088/0953-4075/48/20/204003.
  • Selective Production of Rydberg-Stark States of Positronium. T. E. Wall, A. M. Alonso, B. S. Cooper, A. Deller, S. D. Hogan, and D. B. Cassidy, Phys. Rev. Lett. 114, 173001 (2015) DOI:10.1103/PhysRevLett.114.173001.
  • Positronium emission from mesoporous silica studied by laser-enhanced time-of-flight spectroscopy. A. Deller, B. S. Cooper, T. E. Wall and D. B. Cassidy, New J. Phys. 17 043059 (2015)  DOI:10.1088/1367-2630/17/4/043059.
  • Prospects for Studies of the Free Fall and Gravitational Quantum States of Antimatter. G. Dufour, D. B. Cassidy, P. Crivelli, et al,  Advances in High Energy Physics, vol. 2015, Article ID 379642, 16 pages, (2015) DOI:10.1155/2015/379642.


  • Single-color two-photon spectroscopy of Rydberg states in electric fields. T. E. Wall, D. B. Cassidy, and S. D. Hogan, Phys. Rev. A 90,  053430 (2014) DOI: 10.1103/PhysRevA.90.053430.
  • Atom control and gravity measurements using Rydberg positronium. D. B. Cassidy and S. D. HoganInt. J. Mod. Phys. Conf. Ser. 30, 1460259 (2014) DOI: 10.1142/S2010194514602592.