Read article 'Doubly strange baryon observed in Japan'
Experimental evidence was first reported in the 1970s, but there has been a lingering theoretical controversy about the interpretation of both states.
Read article 'Machine powers down until 2021'
The Large Hadron Collider’s 2018 proton physics run came to an end on 24 October, having accumulated an impressive dataset. The integrated luminosity delivered to both the ATLAS and CMS experiments...
Read article 'Plasma lenses promise smaller accelerators'
An international team has made an advance towards more compact particle accelerators, demonstrating that beams can be focused via a technique called active plasma lensing without reducing the beam qua...
Read article 'ATLAS observes scattering of vector bosons'
The cross-section of longitudinal weak-boson scattering would diverge, resulting in meaningless values, were it not for the exact cancellation due to Higgs-boson contributions.
Read article 'Paul Kunz 1942–2018'
A computing visionary and pioneer, who loved to share his ideas with irrepressible energy.
Read article 'Leon Lederman 1922–2018'
Lederman’s crowning achievement came in 1962 with the co-discovery of the muon neutrino.
Read article 'Hans Paar 1944–2018'
He helped to create an atmosphere of creative thought and friendliness within every group he was part of.
Read article 'Suppression of the Λ(1520) resonance in Pb–Pb collisions'
Due to their short lifetimes, they decay when the system is still dense and the decay products scatter in the hadron gas, reducing the observed number of decays.
Read article 'Search for new quarks addresses unnaturalness'
Why is the observed mass of the Higgs only 125 GeV?
Read article 'CMS detects first production of top quark and photon'
The predicted cross section for tγj, including the branching fraction, is 81 fb, which corresponds to a few hundred events in the whole dataset.
