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Title

The spatial resolution of the silicon tracker of the Alpha Magnetic Spectrometer

Authors
Ambrosi, G.
Choutko, V.
Delgado, C.
Oliva, A.
Yan, Q.
Published in Nuclear Instruments and Methods in Physics Research. A. 2017, vol. 869, p. 29-37
Abstract The Alpha Magnetic Spectrometer (AMS) is a high energy physics experiment operating aboard the International Space Station (ISS) since May 2011. So far more than 100 billion of charged cosmic ray events have been collected by AMS. The AMS silicon tracker, together with the magnet, measures the rigidity (momentum/charge) of cosmic rays in the range from 0.5 GV to several TV. To accurately determine the trajectory of charged particles, a novel tracker position reconstruction method has been developed. In the paper, the details of the method and the obtained tracker spatial resolution for nuclei with charge from 2 to 26 are presented.
Keywords AMSSilicon trackerSpatial resolutionPosition finding algorithmCosmic ray
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AMBROSI, G. et al. The spatial resolution of the silicon tracker of the Alpha Magnetic Spectrometer. In: Nuclear Instruments and Methods in Physics Research. A, 2017, vol. 869, p. 29-37. https://archive-ouverte.unige.ch/unige:98550

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Deposited on : 2017-11-06

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