Abstract
The Mu2e experiment at Fermilab is a sensitive search for lepton flavor violation via muon-to-electron conversion in the field of an aluminum nucleus. The requirements for the tracking and calorimeter systems of the experiment, as well as the design of systems that fulfill these requirements, are briefly described.
Highlights
The Mu2e experiment at Fermilab is designed to search for the charged lepton flavor-violating process of the conversion of a negative muon into an electron in the field of an aluminium nucleus
Transport Solenoid (TS) with fields varying between 2.5 and 2T, that views the target in the backward direction for background rejection, and forms a negative muon beam with a spectrum peaking around 40 MeV/c that enters a large Detector Solenoid (DS) having a field of 2T upstream, tapering to a uniform 1T in the tracker/calorimeter region
This paper will describe the requirements for the tracker and calorimeter systems of the Mu2e experiment, as well as their realization in the chosen technologies
Summary
The Mu2e experiment at Fermilab is designed to search for the charged lepton flavor-violating process of the conversion of a negative muon into an electron in the field of an aluminium nucleus. The expected single event sensitivity of the experiment is 6 x 10-17, an improvement of four orders of magnitude over the current best limit [1][2]. We will describe two of the detector systems of the experiment, the straw tube tracker and the crystal calorimeter, that are .used to identify the conversion electron signal, an electron whose momentum is the mass of a muon less the binding energy of the Al muonic atom, approximately 104 MeV/c, and to control backgrounds in the signal region which are required to be less than 0.2 events at the experiment’s design sensitivity
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