Study of charmless decays B^± → K⁰_S K⁰_S h^± (h=K,π) at Belle

2018/08/01 by The Belle Collaboration, A. Abdesselam, Abdesselam, A. +534
Physics and Astronomy · #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #High-Energy Particle Collisions Research

paper · pdf · doi:10.48550/arxiv.1808.00174

Abstract

We report a search for charmless hadronic decays of charged B mesons to the final states K⁰_S K⁰_S K^± and K⁰_S K⁰_S π^± . The results are based on a 711 fb^-1 data sample that contains 772 × 10⁶ B B pairs, and was collected at the Υ(4S) resonance with the Belle detector at the KEKB asymmetric-energy e⁺e^- collider. For B^± → K⁰_S K⁰_S K^± decays, the measured branching fraction and direct CP asymmetry are [10.64±0.49(stat)± 0.44(syst)]×10^-6 and [-0.6±3.9(stat)± 3.4(syst)] %, respectively. In the absence of a statistically significant signal for B^±→ K⁰_S K⁰_S π^±, we set the 90 % confidence-level upper limit on its branching fraction at 1.14 × 10^-6.

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