Conveners
Parallel talks 2: Flavour & Precision Physics
- Wenbin QIAN (University of Chinese Academy of Sciences)
With the large datasets on 𝑒+𝑒−-annihilation at the 𝐽/𝜓 and 𝜓(3686) resonances collected at the BESIII experiment, multi-dimensional analyses making use of polarization and entanglement can shed new light on the production and decay properties hyperon-antihyperon pairs. In a series of recent studies performed at BESIII, significant transverse polarization of the (anti)hyperons has been...
The speaker will report some selected CMS contributions to the exotic hadron studies, including Y(4140)--the first exotic hadron seen at LHC, X(3872) seen in B_s decay, X(3872) seen in PbPb data, the first observation of a new structure X(6600) in the JpsiJpsi invariant mass spectrum, and the evidence of another new structure X(7300) seen also in the JpsiJpsi channel.
The talk will report the recent studies of the production and decay of X(3872), and the discovery of new tetraquark and pentaquark candidates.
TMDPDFs and TMDWFs are important physical quantities characterizing the distributions of constituent momentum in the hadron, and reflect the non-perturbative internal structure of hadrons. In large-momentum effective theory (LaMET), the TMDWFs can be extracted from the first-principle simulation of a four-quark form factor and quasi-distributions. We provide a one-loop proof of TMD...
The BESIII experiment has collected 2.6B psi(2S) events and 10B J/psi events. The huge data sample provide an excellent chance to search for rare processes in charmonium and charm meson decays. In this talk, we report the recent search for J/psi->D^-e+nu_e, psi(2S)->Lambda_c anti-Sigma^-. In addition, LFV process J/psi->e tau/e mu & BNV/LNV process D^0->p e/n e, and the FCNC process D^0 ->...
