Alignment of the ZEUS micro-vertex detector using cosmic tracks

✍ Scribed by Takanori Kohno

• Publisher: Elsevier Science
• Year: 2006
• Tongue: English
• Weight: 248 KB
• Volume: 559
• Category: Article
• ISSN: 0168-9002
• DOI: 10.1016/j.nima.2005.11.160

✦ Synopsis

ZEUS Micro-Vertex Detector (MVD) was installed in ZEUS after the HERA upgrade in 2000. MVD is a precise position detector consisting of 712 single-sided silicon strip detectors. The alignment of the barrel MVD has been performed in units of ladders using cosmic tracks. The procedure used is an iterative w 2 minimization, where w 2 is defined locally for each ladder. The procedure is numerically stable since it only requires an inversion of 30 6 Â 6 matrices and reasonably fast in spite of the iterative approach.