An Early Separation Scheme for the LHC Luminosity Upgrade

by Guido Sterbini (BE-ABP)

Thursday 8 Apr 2010, 14:00 → 16:00 Europe/Zurich

30/7-018 - Kjell Johnsen Auditorium (CERN)

In this seminar we evaluate the potential of the Early Separation Scheme for the Luminosity Upgrade of the Large Hadron Collider. The main goal of the Early Separation Scheme is to reduce the crossing angle between the proton beams at the collision point in order to increase the luminosity performance of the machine and to alleviate, at the same time, the detrimental effects due to the electromagnetic interaction between the beams. The Early Separation Scheme consists of four dipoles for each of the two high luminosity Interaction Points of the LHC, corresponding to the ATLAS and CMS detectors. Two dipoles out of the four, the so-called D0 dipoles, have to be integrated in the experimental cavern. We show that, working in synergy with an increased beam current and with a stronger final focusing system, the Early Separation Scheme can provide an integrated luminosity of 3000 inverse fb over a period of 7 years with a leveled luminosity of 5.5 10**34 cm**(-2)s**(-1).

Slides Sterbini_seminar.pdf