Detector challenges for mu+mu- colliders in the 10-100 tev range

摘要

The challenges to design, construct, and operate a detector system in an211u001einteraction region at a high energy u+u=collider are briefly summarized. A new 211u001esolution, based on an extensive use of liquefied rare gases, is proposed for the 211u001evertex detector and for the inner tracker. The proposed solution takes a full 211u001eadvantage of the small size of the collision region. The region has radial 211u001edimensions below the um range, while its extent in the beam direction is of the 211u001eorder of 1mm depending on the energy of the machine and on the details of the 211u001edesign. In the energy range considered in this workshop, the momenta of charged 211u001eparticles are high enough to be bent only slightly in the solenoidal magnetic 211u001efield. The tracks are basically straight lines emerging from a known common 211u001epoint. The proposed solution is based on a projective geometry matched to the 211u001edesired tracks. The aim of the design is to achieve a background blind radiation 211u001ehard detector.