Abstract
The STAR experiment at RHIC is in the process of upgrading the inner detector region of the experiment to improve the vertex resolution. We describe the current design of a MAPS based vertex detector, which is the innermost and highest resolution detector of the set of three planned upgrade detectors. This detector will enable the identification of decay vertices displaced from the interaction vertex by 100150 μm and extend the capabilities of the STAR detector in the heavy flavor domain. We present selected detector design characteristics and prototyping results, which help to validate the design in preparation for the construction of the detector.
Original language | English |
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Pages (from-to) | 68-72 |
Number of pages | 5 |
Journal | Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment |
Volume | 650 |
Issue number | 1 |
DOIs | |
State | Published - Sep 11 2011 |
Externally published | Yes |
Funding
We gratefully acknowledge the Marc Winter and the IPHC group for the development of the PXL detector sensors. This work received support in part from the US Department of Energy – Contract no. DE-AC02-05CH11231 , Office of Nuclear Physics.
Keywords
- APS
- MAPS
- Pixel
- Vertex detector