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arXiv · 2510.10094

The effect of magnetic fields on vertex reconstructed muon-spin spectroscopy

Pascal Isenring·Zaher Salman
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Abstract

The use of a Si pixel-based particle tracking scheme in muSR will, among others, allow measurements using a ten-fold increased stopped muons rate and samples ten times smaller than currently possible. Here we present simulation results to assess the effects of magnetic fields on two spectrometer configurations using a two-layered tracking scheme for the incoming and outgoing particles. At a low magnetic field of up to ~50 mT, the tracking and reconstruction accuracy is only minimally influenced. Beyond a magnetic field of ~80 mT the tracking capabilities diminish significantly. Operating a two-layered scheme using small magnetic fields hence does not require adaptations. Only at large magnetic fields, a tracking scheme that makes use of an accurate field map or the use of at least three layers must be employed to achieve reliable particle tracking.

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Pascal Isenring, Zaher Salman. 2025-10-11. The effect of magnetic fields on vertex reconstructed muon-spin spectroscopy. https://doi.org/10.1088/1742-6596%2F3222%2F1%2F012012

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