Physics Department News

After the discovery of the Higgs boson in 2012 a key question is whether it is the only one. The minimal supersymmetric standard model (MSSM) includes five physical Higgs bosons, three of them neutral. ATLAS has just published a search for a second neutral one decaying to tau pairs, covering a wide mass range above that of the discovered one using data collected in the years 2015 and 2016. This is the most sensitve search for such an MSSM Higgs yet.

We propose a suitable explanation for Germanium Tin epitaxial heterostructures temperature-dependent photoluminescence that is based upon the so far disregarded optical activity of dislocations.

Collaboration between the the Universidad Politecnica de Madrid, University of Birmingham and the Warwick XPS Facility has studied the evolution of surface chemistry and the associated wettability of laser-patterned aluminum alloys under abient conditions.

New results from the T2K experiment, in which Warwick is a key collaborator, have strengthened previous hints of a difference in the behaviour of neutrinos and antineutrinos . Neutrinos and antineutrinos come in three types (or flavours) and are capable of changing flavour as they travel from source to detector in a process known as 'flavour oscillations'. The recent analysis indicates that neutrinos and antineutrinos flavour oscillate with different probabilities. These results will help us shed light on the question of why the universe is dominated by matter, with very little observed antimatter.