Physics journey of Dr. Kalicy started at the Warsaw University of Technology in Poland. In 2009 he obtained the Master’s degree in applied physics after defending his thesis on “Amplitude and time response of cooled PWO scintillators, readout with Avalanche photodiodes, to low-energy gamma-rays in 4-20 MeV range”. Results presented in the thesis were part of studies performed at The Andrzej Soltan Institute for Nuclear Studies (SINS) on properties of PWOII scintillators for the PANDA Electromagnetic Calorimeter, one of the sub-detectors in PANDA detector at FAIR, future accelerator facility in GSI Darmstadt at Germany.
In 2010 Dr. Kalicy joined the PANDA Barrel DIRC group at the GSI Helmholtz research center and at Frankfurt University in Germany where he became part of R&D program of a novel focusing Ring Imaging Cherenkov detector - DIRC. His work on the DIRC detector prototypes included simulating, designing, building and testing several generations of prototypes in beam experiments at CERN, Switzerland and GSI, Germany. He also prepared, implemented, and operated the setup for highest precision optical tests. In 2014 he defended his thesis, “Development and Test of a Prototype for the PANDA Barrel DIRC Detector at FAIR”, at Johann Wolfgang Goethe University in Frankfurt am Main.
In 2014 Dr. Kalicy started to work as a postdoctoral researcher at Old Dominion University Research Foundation in Norfolk Virginia. He was coordinating a R&D program of DIRC detector for future Electron Ion Collider, participated in Heavy Photon Search experiment in Jefferson Lab in Newport News, Virginia, mentoring, and supervising students at various levels of their studies.
In 2016 Dr. Kalicy joined Nuclear Physics group at The Catholic University of America where he works until now.
Dr. Kalicy research interests are mainly in exotic hadron spectroscopy, directly probing the 3D structure of protons through electron scattering, and physics beyond standard model. He is an experimental physicist focused on developing a new generation of particle detectors.
Dr. Kalicy is leading the R&D program to develop the High-Performance DIRC detector for the Electron Ion Collider, future of the Nuclear Physics in US. He is an active member of GLueX collaboration, working on currently collected data and a future upgrade. He is also co-leader of high magnetic field facility in Jefferson Lab for single photon sensors tests.
 N.Baltzell et al., “The Heavy Photon Search beamline and its performance”, NIM, Volume 859, 1 July 2017, Pages 69-75
 A.Lehmann et al., “Recent developments with microchannel-plate PMTs”, NIM, Volume 876, 21 December 2017, Pages 42-47
 M.Düren et al., “The Endcap Disc DIRC of PANDA” , NIM, Volume 876, 21 December 2017, Pages 198-201
 A.Lehmann et al., “Tremendously increased lifetime of MCP-PMTs”, NIM, Volume 845, 11 February 2017, Pages 570-574
 A.Del Dottok et al., “Design and R&D of RICH detectors for EIC experiments”, NIM, Volume 876, 21 December 2017, Pages 237-240
 C.P.Wong et al., Modular focusing ring imaging Cherenkov detector for electron–ion collider experiments”, NIM, Volume 871, 1 November 2017, Pages 13-19
 G. Kalicy et al. – “DIRC detector for the future Electron Ion Collider experiment”, JINST 11, C07015, 2016
 Y. Ilieva et al. – “MCP-PMT studies at the High-B test facility at Jefferson Lab”, JINST 11, C03061, 2016
 V. Sulkosky, L. Allison, C. Barber, T. Cao, Y. Ilieva, K. Jin, G. Kalicy, K. Park, N. Ton, X. Zheng. Jan - “Studies of relative gain and timing response of fine-mesh photomultiplier tubes in high magnetic fields” 8, 2016. 14 pp. to be published in physics.ins-det
 M. Hoek (Mainz U., Inst. Kernphys.) et al.. – “The PANDA Barrel DIRC detector”, 2014. 4 pp. Nucl.Instrum.Meth. A766 (2014) 9-13
 C. Schwarz et al.. – “Prototyping the PANDA Barrel DIRC”, 2014. 4 pp. Nucl.Instrum.Meth. A766 (2014) 32-35
 R. Dzhygadlo et al.. – “Simulation and reconstruction of the PANDA Barrel DIRC ”, 2014. 3 pp. Nucl.Instrum.Meth. A766 (2014) 263-266
 M. Cardinali et al.. – “Frontend electronics for high-precision single photo-electron timing using FPGA-TDCs”, 2014. 4 pp. Nucl.Instrum.Meth. A766 (2014) 231-234
 A. Lehmann et al. – “Improved lifetime of microchannel-plate PMTs” 2014. 7 pp. Nucl.Instrum.Meth. A766 (2014) 138-144
 G. Kalicy et al. for the PANDA Cherenkov group – “Prototyping of the PANDA Barrel DIRC,” 18 pp. JINST 9 (2014) C05060
 G. Schwarz et al.. - “The Barrel DIRC of PANDA” JINST 7 (2012) C02008
 G. Kalicy et al. – “Response of Cooled PWO Scintillators Readout with Avalanche Photodiodes to Low-Energy Gamma-rays,” Hyperfine Interactions 04/2012; 194(1):207-211
 G. Kalicy et al. – “Response of cooled PWO scintillators to low energy gamma-rays and its importance in studies of the hc ® hc + g transition in charmonium,” Nuclear Inst. and Methods in Physics Research, A 607 (2009) 600