Strategy for the first two months of the LHC beam commissioning and key early measurements

The LHC beam commissioning in 2015 will be based on the experience accumulated during Run 1 and on scenarios further developed during LS1. On the other hand, the operation at higher energies and with different bunch spacing will pose new challenges and will require additional measurements to be carried out in earlier commissioning phases. The commissioning plans for the first months of operation, until the establishment of first stable collisions, are discussed and the required key measurements with beam are presented. The additional requirements for systems that underwent significant upgrades or changes during LS1 are also taken into account.