000003733 001__ 3733
000003733 005__ 20230724035725.0
000003733 037__ $$aBELLE2-CONF-PROC-2023-025
000003733 041__ $$aeng
000003733 100__ $$aChanchal Sharma 
000003733 245__ $$aStudy of photon energy bias using π0 → γγ decays from D∗+ −→ D0(→ K−π+π0)π+ at Belle II
000003733 260__ $$a$$c2023-07-12
000003733 300__ $$a3
000003733 520__ $$aPhoton energy bias is used to compute the corrections to the reconstructed photon energy and improve data-simulation agreement in analyses having final states with photons. In this study, we reconstruct clean samples of π0 → γγ decay from the D∗+ → D0(→ K−π+π0)π+ decay chain in both simulation and data collected by Belle II experiment. A detailed comparison study of mean π0 mass and π0 mass resolution is carried out in data and simulation in different bins of photon energy.
000003733 8560_ $$f2018rpy9026@mnit.ac.in
000003733 8564_ $$uhttps://docs.belle2.org/record/3733/files/2022_DAE_BRNS_HEP_SymProceedings_energy_bias_final.pdf