About Associate Professor Archil Kobakhidze

It is amusing to realise that simple and elegant physical laws at microscopic distances govern our large, complex and diverse world.

Dr Archil Kobakhidze is a theoretical particle physicists working on various theoretical and phenomenological aspects of elementary particles and their fundamental interactions, gravity and cosmology. After completing his Ph.D. in Tbilisi State University, he has been working as a postdoctoral researcher in the University of Helsinki (Finland), University of North Carolina at Chapel Hill (USA) and the University of Melbourne. In 2012 he joined Particle Physics group in the School of Physics at the University of Sydney.

Particle physics is about understanding the nature at a very fundamental level. Modern particle physics is based on some profound theoretical insights such as relativity and quantum mechanics and represents one of the most important scientific achievements in the history of mankind. Another fascinating aspect of particle physics is that it plays an important role in our understanding of the Universe we live in and its cosmological evolution.

Many profound theoretical ideas are currently under experimental scrutiny at the CERN Large Hadron Collider (LHC) in Geneva, Switzerland. Experimentalists have already discovered a new particle, which closely resembles the long-thought-after Higgs boson. Theoretical considerations suggest that there must exist other particles besides the Higgs boson, which may also be observed at the LHC in future.

Dr Kobakhidze's current research activities are focused on studies of properties of newly discovered particle with the aim to uncover dynamics of the electroweak symmetry breaking and, thus, the origin of mass. He is also interested in particle physics and cosmological models that address other mysteries of nature, such as matter-antimatter asymmetry in the Universe, dark matter and dark energy. This research is carried out within the Sydney node of the ARC Centre of Excellence for Particle Physics at the Terascale (CoEPP) in close scientific contacts with the Sydney experimental particle physics group as well as research groups across the Centre and overseas collaborators.

Selected publications

  • Gravitational waves from a supercooled electroweak phase transition and their detection with pulsar timing arrays, A. Kobakhidze, C. Lagger, A. Manning and J. Yue. Eur.Phys.J. C 77 (2017) 570.
  • Constraining noncommutative spacetime from GW150914, A. Kobakhidze, C. Lagger and A. Manning. Phys.Rev. D 94 (2016) no.6,  064033.
  • Unitarisation of EFT Amplitudes for Dark Matter Searches at the LHC, N. Bell, G. Busoni, A. Kobakhidze, D.M. Long and M.A. Schmidt. JHEP 1608, (2016) 125.
  • Anomalous Top-Higgs Couplings and Top Polarisation in Single Top and Higgs Associated Production at the LHC, A. Kobakhidze, L. Wu and J. Yue, JHEP 1410 (2014) 100
  • Probing Light Higgsinos in Natural SUSY from Monojet Signals at the LHC, C. Han, A. Kobakhidze, N. Liu, A. Saavedra, L. Wu and J.M. Yang. JHEP 1402 (2014) 049.
  • Electroweak Vacuum (In)Stability in an Inflationary Universe, A. Kobakhidze and A. Spencer-Smith. Phys.Lett. B 722 (2013) 130.
  • A Solution to the hierarchy problem from an almost decoupled hidden sector within a classically scale invariant theory, R. Foot, A. Kobakhidze, K. L. McDonald, R. R. Volkas. Phys.Rev. D77 (2008) 035006.
  • Noncommutative general relativity, X. Calmet, A. Kobakhidze.Phys.Rev. D72 (2005) 045010.
  • Proton stability in TeV scale GUTs, A. B. Kobakhidze. Phys.Lett. B514 (2001) 131-138.