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# 中国格点QCD第一届年会

from October 30, 2021 to November 2, 2021

Asia/Shanghai timezone
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# session7

## Place

Location: 线上
Date: 2 Nov 09:00 - 12:10 PM

## Conveners

• Yang, Yi-Bo (ITP/CAS)

## Timetable | Contribution List

Displaying 7 contributions out of 7
Session: session7
Presented by Prof. Zhaofeng LIU on 2/11/2021 at 3:00
Session: session7
The charmonia decays present an ideal laboratory for testing the interplay between perturbative and nonperturbative QCD. In this talk, I focus on the all-photon decay and radiative decay of charmoina. Adopting a new method proposed recently, we perform the systematic lattice calculations on ηc/χc0→2γ and J/ψ→γηc. By using three Nf=2 twisted mass gauge ensembles with different lattice spa ... More
Presented by Dr. 雨 孟 on 2/11/2021 at 2:30
Session: session7
Presented by 心宇 脱 on 2/11/2021 at 3:30
Session: session7
The measurement of muonic-hydrogen spectroscopy provides the most precise determination of the proton charge radius, where the two-photon exchange contribution plays an important role in the understanding of μH spectroscopy. We will report a lattice QCD calculation of the two-photon exchange contribution by constructing the proton four-point correlation function.
Presented by 杨 傅 on 2/11/2021 at 3:50
Session: session7
The two neutral kaon states in nature, the $K_L$ (long-lived) and $K_S$ (short-lived) mesons, are the two time-evolution eigenstates of the $K^0 - \overline{K^0}$ mixing system. The prediction of their mass difference $\Delta m_K$ based on the standard model is an important goal of lattice QCD. In this talk, I will present the preliminary results from a calculation performed on an ensemble of \$64^ ... More
Presented by Dr. Bigeng WANG on 2/11/2021 at 1:30
Session: session7
Presented by Prof. Luchang JIN on 2/11/2021 at 1:00
Session: session7
Presented by Prof. 立功 边 on 2/11/2021 at 2:00
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