Abstract
Abstract
An implementation of A Common Tracking Software (ACTS) toolkit for signal electron
reconstruction for the COMET muon to electron conversion experiment is discussed. The
COMET experiment in J-PARC, Japan, will search for neutrinoless conversion of muons into electrons
in the field of an aluminium nucleus, a lepton flavour violating process, aiming target
sensitivity of 10-17. To achieve its scientific goals, the experiment requires a
reconstructed momentum resolution of lower than 150 keV/c. For the first time by applying ACTS to
signal events in the 100 MeV energy range with multiple-turn trajectories in the presence of
background events, it is found that the reconstruction efficiency is around 14% with no fake
reconstructed events. The implementation details, performance, and issues of ACTS in the context
of COMET are presented.
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