摘要: A major detector problem at high energy colliders independent of the luminosity is the ability to resolve particles inside jets. Only in very spacial cases, e.g., UAl W+- production with P/sub T/ = M/sub W//2 will enough of the si... 展开 A major detector problem at high energy colliders independent of the luminosity is the ability to resolve particles inside jets. Only in very spacial cases, e.g., UAl W+- production with P/sub T/ = M/sub W//2 will enough of the signal be clear of jets, so that events with tracks in jets can be summarily rejected. Eventually, detectors will have to cope with tracks in jets. The high track density requires good track-pair resolution and efficiency, which implies wire chambers with drift distances of 2 mm or less, independent of the luminosity. The small drift distances required by the jet physics are very helpful at high luminosities since the maximum drift time of 40 nsec limits the pile-up to an average of 2 events at a luminosity of 10 exp 33 cm exp -2 sec exp -1 . The segmentation of calorimeters is also set by jet physics and the desire to resolve and measure collimated jets. Characteristics of some segmented detectors are briefly discussed. (ERA citation 08:032316) 收起