Kavli Affiliate: Hsiao-Mei (Sherry) Cho
| First 5 Authors: [#item_custom_name[1, [#item_custom_name[2, [#item_custom_name[3, [#item_custom_name[4, [#item_custom_name[5| Summary:We present a measurement of the time-dependent $CP$ asymmetry in $B^0 to K_rm S^0 : π^+ π^- γ$ decays using a data set of 365 fb$^-1$ recorded by the Belle II experiment and the final data set of 711 fb$^-1$ recorded by the Belle experiment at the $rm Υ(4S)$ resonance. The direct and mixing-induced time-dependent $CP$ violation parameters $C$ and $S$ are determined along with two additional quantities, $S^+$ and $S^-$, defined in the two halves of the $m^2(K_rm S^0 π^+)-m^2(K_rm S^0 π^-)$ plane. The measured values are $C = -0.17 pm 0.09 pm 0.04$, $S = -0.29 pm 0.11 pm 0.05$, $S^+ = -0.57 pm 0.23 pm 0.10$ and $S^- = 0.31 pm 0.24 pm 0.05$, where the first uncertainty is statistical and the second systematic.| Search Query: arXiv Query: search_query=au:Cho OR all:Hsiao-Mei&id_list=&start=0&max_results=3Read More