000004122 001__ 4122
000004122 005__ 20240311033751.0
000004122 037__ $$aBELLE2-TALK-CONF-2024-015
000004122 041__ $$aeng
000004122 100__ $$aMatthäus Krein
000004122 245__ $$aSensitivity of magnetic monopole detection at the Belle II PXD
000004122 260__ $$aDPG-Frühjahrstagung Karlsruhe$$c2024-02-23
000004122 300__ $$a10
000004122 500__ $$a12 minutes
000004122 520__ $$aParticles with isolated magnetic charge, so-called magnetic monopoles, are of high experimental and theoretical interest. As most theories predict a high energy loss of these particles in matter, magnetic monopoles, which could be produced in collider experiments, would only reach the inner detectors close to the interaction point. The Belle II pixel detector, which has a minimum radial distance of only 1.4 cm from the interaction point, is therefore well suited for detection. In this contribution, we focus on light monopoles of below 1 GeV and present the sensitivity to these particles at Belle II. Our analysis uses so-called autoencoder neural networks for background suppression. Our study predicts exclusion limits on the order of 10−39 cm2, which are competitive to established limits. This research is supported by BMBF (05H21RGKB1) and Horizon2020 European Union Marie Slodowska Curie Action in the RISE program (n.822070).
000004122 6531_ $$aMonopole
000004122 6531_ $$aBelle II
000004122 6531_ $$aPXD
000004122 6531_ $$aSimulation
000004122 700__ $$aKatharina Dort
000004122 700__ $$aSören Lange
000004122 8560_ $$fmatthaeus.krein@exp2.physik.uni-giessen.de
000004122 8564_ $$uhttps://docs.belle2.org/record/4122/files/BELLE2-TALK-CONF-2024-015.pdf$$zAdjustments from referee