Collimation and β * reach

The reach in β * of the LHC depends on a number of different parameters, including both the collimation hierarchy and the available aperture, but also on impedance and the needed crossing angle. We investigate different options and make a proposal for the starting configuration of Run II in 2015. The focus is more on feasibility than on performance , and the proposal is based on what is believed can be achieved based on the Run I experience. Furthermore, we discussed different options on how to push the performance later in the run by squeezing β * to smaller values.