Speaker
Description
For future collider designs focussing on producing Higgsstrahlung events, the majority of final states contain multiple jets from the hadronic decays of W, Z, and Higgs bosons. To distinguish between the W and Z bosons, a high-resolution calorimeter is required to reconstruct the jet energy. Dual readout calorimetery utilizes the differences in the Cherenkov and scintillation profiles of the EM and non-EM components of a shower to improve jet energy resolution. Since the energy resolution relies upon characterizing these optical processes, precision optical simulations are necessary to predict and calibrate the detector response. The high multiplicity of optical photons in a single event heavily limits the event throughput on traditional CPU architectures, motivating the development of new GPU-accelerated optical photon physics in the Celeritas Monte Carlo code. Celeritas is a GPU-accelerated particle transport Monte Carlo code with an optimized optical photon transport loop. With simulation data from the CalVision Dual Readout group, the performance of Celeritas’ optical photon offloading will be compared to Geant4, as well as validation of the physics results from both codes. Finally, the state of Celeritas optical physics will be summarized, along with current development plans and goals.