Track dE/dx in ATLAS Inner Detector

A track dE/dx resolution of ~12% is measured using particles with p > 3 GeV ( to minimize spread due to low beta ionization), with at least 6 SCT hits (to assure track quality) and requiring at least 3 Good clusters (to properly measure the Track dE/dx). Mean and sigma are obtained from a gaussian fit of the data.
Reference: ATLAS Pixel Public Results Twiki

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