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CERN Courier magazine: April 2013 digital edition

Cern Courier

Welcome to the digital edition of the April 2013 issue of CERN Courier.

Supernova explosions provide a natural laboratory for some interesting nuclear and particle physics, not least when they leave behind neutron stars, the densest known objects in the cosmos. Conversely, experiments in physics laboratories can cast light on the nature of neutron stars, just as the ISOLTRAP collaboration is doing at CERN's ISOLDE facility, as this month's cover feature describes. Elsewhere at CERN, the long shutdown of the accelerators has begun and a big effort on maintenance and consolidation has started, not only on the LHC but also at the experiments. At Point 5, work is underway to prepare the CMS detector for the expected improvements to the collider. Meanwhile, the Worldwide LHC Computing Grid continues to provide high-performance computing for the experiments 24 hours a day, while it too undergoes a continual process of improvement.

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