Read article 'ATLAS spots light-by-light scattering'
Heisenberg and his student Euler realised that photons may scatter off of each other through a quantum-loop process involving virtual electron and positron pairs.
Read article 'Studies of electroweak-boson production by CMS'
It is quite improbable for two colliding protons to produce a W or Z electroweak gauge boson. Producing two or more W or Z bosons in the same collision is even less likely.
Read article 'LHCb searches for strong CP violation'
CP violation, which relates to an asymmetry between matter and antimatter, is a well-established feature of the weak interaction that mediates decays of strange, charm and beauty particles. It arises ...
Read article 'ALICE prepares for high-luminosity LHC'
The LHC is preparing for a major high-luminosity upgrade (HL-LHC) with the objective to increase the instantaneous luminosity to around 2 × 1035 cm–2 s–1 for proton–proton (pp) collisio...
Read article 'KATRIN celebrates first beam'
On 14 October, the KArlsruhe TRItium Neutrino (KATRIN) experiment, which is presently being assembled at Tritium Laboratory Karlsruhe on the KIT Campus North site, Germany, celebrated “first lightâ€...
Read article 'European XFEL enters commissioning phase'
On 6 October, commissioning began at the world’s largest X-ray laser: the European XFEL in Hamburg, Germany. The 3.4 km-long European XFEL will generate ultrashort X-ray flashes with a brilliance ...
Read article 'Hubble misses 90% of distant galaxies'
A team of astronomers has estimated that the number of galaxies in the observable universe is around two trillion.
Read article 'All systems go for the High-Luminosity LHC'
On 19 September, the European Investment Bank (EIB) signed a 250 million Swiss francs (€230 million) credit facility with CERN in order to finance the High-Luminosity Large Hadron Collider (HL-L...
Read article 'First physics at HIE-ISOLDE begins'
In early September, the first physics experiment using radioactive beams from the newly upgraded ISOLDE facility got under way: a study of tin, which is a special element because it has two double mag...
Read article 'Three-year extension for open-access initiative'
In September, following three years of successful operation and growth, CERN announced the continuation of the global SCOAP3 open-access initiative for at least three more years. SCOAP3 (Sponsoring Co...
