Assembly and Bench Testing of a Spiral Fiber Tracker for the J-PARC TREK/E36 Experiment

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This study presents the recent progress made in developing a spiral fiber tracker (SFT) for use in the experiment TREK/E36 planned at the Japan Proton Accelerator Research Complex. This kaon decay experiment uses a stopped positive kaon beam to search for physics beyond the Standard Model through precision measurements of lepton universality and through searches for a heavy sterile neutrino and a dark photon. Detecting and tracking positrons and positive muons from kaon decays are of importance in achieving high-precision measurements; therefore, we designed and are developing the new tracking detector using a scintillating fiber. The SFT was completely assembled, and in a bench test, no dead channel was determined.

Proceedings of 2nd International Symposium on Science at J-PARC (J-PARC 2014), to be published in JPS Conf. Proc., 6 pages, 5 figures

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