| 日時: |
2010-05-07 15:00 - 16:00 |
| 場所: |
3号館４階425号室 |
| 会議名: |
Dual-readout calorimetry |
| 連絡先: |
三部 (mibe at post.kek.jp) |
| 講演者: |
Prof. Richard Wigmans (Texas Tech University) |
| 講演言語: |
英語 |
| アブストラクト: |
In the last quarter century, calorimeters have evolved as the particle detectors of
choice in experiments at the energy frontier. However, development of the full potential
of these detectors, which are based on total absorption of the particles to be measured, is
hampered by the fact that electrons and photons generated in hadron showers typically
produce significantly larger signals than equally energetic protons and pions generated in
the absorption process. This phenomenon, commonly referred to as non-compensation,
is responsible for poor energy resolution, a non-linear response, and a non-Gaussian
response function when detecting hadrons and jets.
Dual-Readout calorimetry offers a solution for these problems. The DREAM Collaboration
is exploring the limits of the possibilities offered by this technique, by systematically
eliminating the limiting factors, one after the other. Powerful tools in this
context are the simultaneous measurement of scintillation light and Cherenkov light
generated in the absorption process, and a detailed measurement of the time structure
of the signals. As a result, calorimetric measurements of hadrons and jets with a precision
level comparable to that achieved for electrons and photons now seem to be within
reach.
In this talk, the latest results of this generic detector R&D project will be presented. |
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