Heidelberg 2022 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 59: Neutrino Physics with Accelerators 1

T 59.1: Vortrag

Mittwoch, 23. März 2022, 16:15–16:30, T-H18

Particle Identification and Reconstruction with the DUNE ND-GAr Near Detector — •Lorenz Emberger and Frank Simon — Max-Planck-Institut für Physik

The Near Detector (ND) of the Deep Underground Neutrino Experiment (DUNE) will play an important role in the search of CP violation in the neutrino sector. Additionally, as a standalone complex, it will be an excellent laboratory to study a wide range of neutrino interactions and BSM models. The ND design consists of three independent sub-detectors, placed downstream of the neutrino production target. One of these detectors, called ND-GAr, consists of a magnetized high pressure gaseous Argon Time Projection Chamber (TPC), surrounded by an electromagnetic calorimeter (ECAL) and a magnet yoke. One key aspect of the ECAL is the reconstruction of neutral particles such as neutral pions and potentially neutrons. The ECAL also extends the detector’s separation capability of muons and pions, which is further enhanced by a muon tagger in the magnet yoke. We present a simulation study of the detector system featuring a highly granular electromagnetic calorimeter inspired by the SiPM-on-Tile technology developed by the CALICE collaboration. We will introduce the detector design considerations, as well as the potential physics program. Furthermore, we will discuss the separation of muons and pions using the ECAL and study the impact of different possible muon tagger layouts. A simulation study on time-of-flight reconstruction of the kinetic energy of neutrons will also be presented.