Exploration of a High Luminosity 100 TeV Proton Antiproton Collider

Abstract

New physics is being explored with the Large Hadron Collider at CERN and with Intensity Frontier programs at Fermilab and KEK. The energy scale for new physics is known to be in the multi-TeV range, signaling the need for a future collider which well surpasses this energy scale. We explore a 10 34 cm −2 s −1 luminosity, 100 TeV pp collider with 7× the energy of the LHC but only 2× as much NbTi superconductor, motivating the choice of 4.5 T single bore dipoles. The cross section for many high mass states is 10 times higher in pp than pp collisions. Antiquarks for production can come directly from an antiproton rather than indirectly from gluon splitting. The higher cross sections reduce the synchrotron radiation in superconducting magnets and the number of events per beam crossing, because lower beam currents can produce the same rare event rates. Events are more centrally produced, allowing a more compact detector with less space between quadrupole triplets and a smaller β * for higher luminosity. A Fermilab-likep source would disperse the beam into 12 momentum channels to capture more antiprotons. Because stochastic cooling time scales as the number of particles, 12 cooling ring sets would be used. Each set would include phase rotation to lower momentum spreads, equalize all momentum channels, and stochastically cool. One electron cooling ring would follow the stochastic cooling rings. Finally antiprotons would be recycled during runs without leaving the collider ring by joining them to new bunches with synchrotron damping.

The Beam Dynamics and Beam Related Uncertainties in Fermilab Muon $g-2$ Experiment

“…If the new physics particle has a mass scale of about a TeV, it would be possible to identify it at the current LHC's energy frontier search, although no new physics has yet been found. Energy frontier lepton [53,54,55] and hadron [56,57] colliders may be able to go beyond the LHC. The Muon g − 2 experiment can carry on the search for new physics using high intensity.…”

Final Cooling for a Muon Collider

“…After the electrostatic septum, a magnetic septum is used to separate the beam further. A system like this has been proposed for use in a future proton-antiproton collider [59][60][61], in order to increase anti-proton momentum acceptance from ±2% to ±24%.…”