Just before the successful circulation of the first beams in the LHC accelerator at CERN seminal articles describing the construction of the LHC and its detectors were published Open Access in the Journal of Instrumentation. This is in line with the commitment of HEP scientists to Open Access.
Elsevier has meanwhile announced that it will join Springer and SISSA/IOP in publishing Open Access without any author fees the first articles describing the physics results of the LHC.
Symmetry comments on these stories can be found here and here.
Publishing in HEP and Open Access are among the subjects of Richard Poynder’s interviews to Rolf-Dieter Heuer and Annette Holtkamp