Recent results on charm physics at BESIII

2012/09/13 by Hai-Bo Li
Physics and Astronomy · #Charm (quantum number) #Data set #Detector #Electron–positron annihilation #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Physics beyond the Standard Model #Quantum Chromodynamics and Particle Interactions #hep-ex #hep-ph

paper · pdf · doi:10.1016/j.nuclphysbps.2012.12.075

7 pages, 9 figures, proceedings for talk at BEACH 2012, July 23-28, 2012 in Wichita, USA

arxiv created 2012/09/13 · openalex publication_date 2012/12/01 · arxiv updated 2015/06/11 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

Abstract

About 2.9 fb^-1 data set had been collected with the BESIII detector at the BEPCII collider. Taking advantages of data near open-charm threshold, we present preliminary results on leptonic and semileptonic charm-meson decays, as well as result on the FCNC process D⁰ → γγ from BESIII experiment. High precision charm data will enable us to validate Lattice QCD calculations at the few percent level. These can then be used to make precise measurements of CKM elements, V_cd and V_cs, which are useful to improve the accuracy of test of the CKM unitary.

Citations

• Review of Particle Physics
• The Rare Decay D⁰ -> gamma gamma
• Rare charm decays in the standard model and beyond
• CP-Violation in the Renormalizable Theory of Weak Interaction
• Search for the decayD0→γγand measurement of the branching fraction forD0→π0π0
• The c → uγ contribution to weak radiative charm decay