Study of a less invasive LHC early separation scheme

The LHC Early Separation Scheme consists of a four 8 to 15 T-m dipoles (D0s) installed in the two LHC high luminosity experiments. Its aim, in the framework of LHC Phase II Upgrade, is to improve the luminosity by reducing the crossing angle between the two colliding beams, mitigating and controlling at the same time their parasitic interactions. We investigate a less invasive implementation for the detectors (D0 at 14 from the IP) with respect to those already presented (D0 at 4 and 8 m from the IP). The luminosity performance is discussed and a tentative analysis on beam-beam effect impact is given. For the new D0 position, preliminary dipole design and power deposition results are shown.