Beam Particle Tracking for the MUSE Experiment at PSI

Graduate #91
Discipline: Physics
Subcategory: Physics (not Nanoscience)

Tanvi Patel - Hampton University
Co-Author(s): Sahara Jesmin Mohammed Prem Nazeer, Anusha Liyanage, Michael Kohl, Hampton University, Hampton, VA

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The Muon Scattering Experiment (MUSE) at Paul Scherrer Institute (PSI) is being prepared to provide key insight in the quest to explain the so-called proton radius puzzle – the six-standard deviation discrepancy between proton charge radius measurements with electronic and muonic probes, respectively. MUSE is designed to measure the proton charge radius in four different ways with scattering of muons and electrons and with both charge polarities. For an accurate determination of the lepton scattering angle, the
incoming particle must be tracked for each acquired scattering event. A telescope of Gas Electron Multipliers (GEM) exposed to a high flux of beam particles is used to reconstruct incoming tracks event-by-event with high spatial resolution while representing minimal material for the beam to pass through.The status of the GEM beam particle tracking system is reported.

Not Submitted

Funder Acknowledgement(s): This work has been supported by NSF HRD-1649909.

Faculty Advisor: Michael Kohl, kohlm@jlab.org

Role: 1) Installation and operation of GEM detectors, 2) Integration of the GEM data acquisition into MUSE, and 3) Raw data analysis for hits and reconstruction of track to characterize the GEM detectors perfomance.