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arXiv · 1405.2759

Multiple Coulomb Scattering in Thin Silicon

Niklaus Berger·Armen Buniatyan·Patrick Eckert·Fabian Förster·Roman Gredig·Oxana Kovalenko·Moritz Kiehn·Raphael Philipp·André Schöning·Dirk Wiedner
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Abstract

We present a measurement of multiple Coulomb scattering of 1 to 6 GeV/c electrons in thin (50-140 um) silicon targets. The data were obtained with the EUDET telescope Aconite at DESY and are compared to parametrisations as used in the Geant4 software package. We find good agreement between data and simulation in the scattering distribution width but large deviations in the shape of the distribution. In order to achieve a better description of the shape, a new scattering model based on a Student's t distribution is developed and compared to the data.

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Niklaus Berger, Armen Buniatyan, Patrick Eckert, Fabian Förster, Roman Gredig, Oxana Kovalenko, Moritz Kiehn, Raphael Philipp, André Schöning, Dirk Wiedner. 2014-05-12. Multiple Coulomb Scattering in Thin Silicon. https://doi.org/10.1088/1748-0221/9/07/p07007

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