Speaker
Description
The fidelity of detector simulation is crucial for precision experiments, such as DUNE which uses liquid argon time projection chambers (LArTPCs). We can improve the detector simulation by performing dedicated calibration measurements. Using conventional calibration approaches, typically we are only able to tackle individual detector processes per measurement. However, the detector effects are often entangled in the measured detector output, particularly in LArTPCs. In this talk, we will present differentiable simulation solutions with gradient-based optimization for improving the modeling of both the charge and light signals from LArTPCs. The use of the differentiable simulator allows in-situ calibration which provides natural consistency between the calibration measurements and simulation application. This work also paves a way towards developing an "inverse detector simulation" for mapping the detector output to detector physics quantities of interest.
