ATLAS
Colliding photons at the LHC!
The interaction of photons with matter such as Compton and Thompson scattering are well-known at higher photon energies. What about the scattering events between photons? In classical Maxwell theory photons do not interact. In contrast, in quantum…
Read moreNew LHC results presented at EPS-HEP 2017
Over 700 physicists coming from 50 countries met in Venice to discuss the newest results in their field at EPS 2017, one of the world’s most important conferences on particle physics. The conference was co-organized by the European Physical Society…
Read moreRD53: a large scale demonstrator pixel chip for the phase 2 upgrades of ATLAS and CMS
The RD53 collaboration presented the RD53A large scale pixel chip demonstrator in 65nm CMOS technology as a vital milestone to make viable pixel detectors for the ATLAS and CMS phase 2 upgrades. The RD53 collaboration has during the last 4 years…
Read more007 reasons for physics beyond the Standard Model
The 5th of July marks the fifth anniversary since the discovery of a Higgs boson at the LHC. Summarizing notes for a recent set of lectures at the Asia-Europe-Pacific School of High-Energy Physics, John Ellis reviews events leading to the discovery…
Read moreA Moriond Retrospective: New Results from the LHC Experiments
Every March, particle physicists around the world take two weeks to promote results, share opinions and do a bit of skiing in-between. This is the Moriond tradition and the 52nd iteration of the conference took place this year in La Thuile, Italy.…
Read moreWealth of new results in Quark Matter 2017
Last month, the LHC experiment collaborations presented their latest results at the Quark Matter 2017 conference on how matter behaved in the very early moments of the universe. The programme includes a plethora of presentations on a variety of…
Read moreATLAS and CMS physicists awarded 2017 Panofsky Prize
On Tuesday, 11 October 2016, the American Physical Society (APS) announced the award of the 2017 W.K.H. Panofsky Prize in Experimental Particle Physics to Michel Della Negra (Imperial College London and, previously, CERN), Peter Jenni (Albert-…
Read moreSearching for dark energy with particle colliders
The expansion of our universe is accelerating, and we don’t understand why. The observational evidence for this is so compelling that its discoverers were awarded the Nobel Prize in 2011, and yet none of our current theories explain how this can be…
Read moreWhere is Supersymmetry?
The original ideas The original ideas for introducing supersymmetry dates back in the 1960s when, in the context of hadron physics that was found to be approximately spin-flavour independent, a symmetry between mesons and baryons was proposed. These…
Read moreNew measurement of the W boson mass by the ATLAS collaboration
The W electroweak gauge boson was discovered in 1983 at the CERN SPS collider. Although the properties of the W boson have been studied for more than 30 years, precise measurement of its mass remains a major challenge. Figure: The ATLAS…
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