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Alignment calibration and performance study of the STAR PXL detector

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Abstract

We report in this paper the alignment calibration of the STAR pixel detector (PXL) prototype for the RHIC 2013 run and performance study of the full PXL detector installed and commissioned in the RHIC 2014 run. PXL detector is the innermost two silicon layers of the STAR heavy flavor tracker aiming at high-precision reconstruction of secondary decay vertex of heavy flavor particles. To achieve the physics goals, the calibration work was done on the detector with high precision. A histogram-based method was successfully applied for the alignment calibration, and the detector efficiency after alignment was studied using both \(p+p\) collision data and cosmic ray data.

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Authors and Affiliations

  1. Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai, 201800, China

    Long Ma & Yu-Gang Ma

  2. University of Chinese Academy of Sciences, Beijing, 100049, China

    Long Ma

  3. Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA

    Xin Dong

  4. Purdue University, West Lafayette, IN, 47907, USA

    Hao Qiu

  5. Kent State University, Kent, OH, 44242, USA

    Spiros Margetis

  6. ShanghaiTech University, Shanghai, 200031, China

    Yu-Gang Ma

Authors
  1. Long Ma
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  2. Xin Dong
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  3. Hao Qiu
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  4. Spiros Margetis
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  5. Yu-Gang Ma
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Corresponding author

Correspondence to Yu-Gang Ma.

Additional information

This work was supported in part by the National Natural Science Foundation of China (No. 11421505) and the Major State Basic Research Development Program in China (No. 2014CB845400).

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Ma, L., Dong, X., Qiu, H. et al. Alignment calibration and performance study of the STAR PXL detector. NUCL SCI TECH 28, 25 (2017). https://doi.org/10.1007/s41365-016-0177-4

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  • DOI: https://doi.org/10.1007/s41365-016-0177-4

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