Cornell University Unit Name

"Highly segmented electromagnetic calorimeter"

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The goal of the project, within the framework of the CALICE collaboration, is to design an electromagnetic calorimeter (ECAL) capable of performing efficient particle flow (PFLOW) reconstruction.

Any design will be based on test beam results obtained from a prototype silicon-tungsten sampling calorimeter. The prototype will have a very small pad size, 1x1cm^2, which is essential for excellent PFLOW performance. As of late 2005, the prototype is nearing completion and will be tested in an electron test beam early in 2006 at DESY and in hadron beams later in 2006 at CERN. We foresee a wide programme of electron and hadron test beams at the Fermilab-MTBF facility in 2007 and beyond.

In parallel, longer-term technical R&D is being performed, aiming at a final ILC detector design. This includes new concept studies, such as even smaller pads or the use of MAPS CMOS sensors as an alterative to silicon diodes. In all cases, the aim is to design a very fine-grained ECAL device.

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Please address the following questions in your statement.

• What are the goals of this R&D project. How does this R&D project address the needs of one or more of the detector concepts?

• If there are multiple institutions participating in this project, please describe the distribution of responsibilities.

• Are there significant recent results?

• What are the plans for the near future(about 1 year)? What are the plans on a time scale of 2 to 3 years?

• Are there critical items that must be addressed before significant results can be obtained from this project?

• Is the support for this project sufficient? Are there significant improvements that could be made with additional support?