Measurements of strong phase in D⁰→ Kπ decay and y_CP at BESIII

2013/11/14 by Xujie Lü, Lu, Xiao-Rui
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Experiment (hep-ex) #High Energy Physics - Phenomenology (hep-ph) #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions

paper · pdf · doi:10.48550/arxiv.1311.3411

openalex publication_date 2013/11/14 · openalex created_date 2024/04/11 · openalex updated_date 2026/07/28

Abstract

In this paper, I report the preliminary results of the strong phase difference cosδ_Kπ between the doubly Cabibbo-suppressed process D⁰→ K^- π⁺ and Cabibbo-favored D⁰→ K^- π⁺ at BESIII. In addition, the preliminary results of the D⁰-D⁰ mixing parameter y_CP by analyzing CP-tagged semileptonic D decays are presented. These measurements were carried out based on the quantum-correlated technique in studying the process of D⁰D⁰ pair productions of 2.92 fb^-1 e⁺e^- collision data collected with the BESIII detector at √(s) = 3.773 GeV.

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