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中国物理学会高能物理分会第十一届全国会员代表大会暨学术年会

8–12 Aug 2022
Asia/Shanghai timezone

Session

Parallel Session VI (2)：Hadron and Flavor Physics

10 Aug 2022, 16:20

Conveners

Parallel Session VI (2)：Hadron and Flavor Physics

  • 旭 冯 (Peking University)

Presentation materials

There are no materials yet.
Contribution list Timetable
331. Pion介子分布函数
Prof. Lei Chang (Nankai Univ)
10/08/2022, 16:20
强子物理与味物理
Oral report
在量子色动力学框架下存在一个有效的跑动耦合常数，它制约着强子分布函数随能标的演化，并在所有的阶次上保持成立。由此，我们指出在强相互作用系统中存在一个独特的强子能标，在这个能标下，强子动量完全由价夸克携带，并且给出在该能标下分布函数相应Mellin矩的上下限。通过分析当前格点QCD关于moments的计算结果，发现格点QCD均自洽落在该上下限内，并由此可以参数无关的预言Pion介子中价夸克、胶子及海夸克的分布函数。
152. Lattice QCD using Large momentum effective theory
Prof. Yi-Bo Yang (ITP/CAS)
10/08/2022, 16:40
强子物理与味物理
Oral report
I will talk about the lattice QCD progress of hadron structure using the Large momentum effective theory framework, especially the high accuracy calculation of the meson light-cone distribution amplitudes and investigation on the transverse momentum distributions.
431. Pion and Kaon Distribtuion Amplitudes from Lattice QCD
俊 华 (South China Normal University)
10/08/2022, 17:00
强子物理与味物理
Oral report

Pion and Kaon Distribtuion Amplitudes from Lattice QCD
130. Exploring Partonic Collinear Structure and Light-Cone Distribution Amplitudes by Quantum Computing
Tianyin Li (South China Normal University)
10/08/2022, 17:15
强子物理与味物理
Oral report

This talk contains two parts, the first part is Partonic Collinear Structure by Quantum Computing and the second part is Exploring Light-Cone Distribution Amplitudes from Quantum Computing.

In the first part, we present a systematic quantum algorithm, which integrates both the hadronic state preparation and the evaluation of the real-time light-front correlators, to study parton...
291. B(s), D(s) to light tensor meson form factors via LCSR in HQEFT with applications to semileptonic decays
Dr Yabing zuo (Liaoning Normal University)
10/08/2022, 17:30
强子物理与味物理
Oral report
In the present work, the form factors of $B_{(s)}, D_{(s)}$ to light P-wave tensor mesons ($a_2(1320)$, $K^*_2(1430)$, $f_2(1270)$, $f^\prime_2(1525)$) are calculated via the light cone sum rules (LCSR) in the framework of heavy quark effective field theory (HQEFT). Firstly, the expressions of form factors in terms of the light cone distribution amplitudes (DAs) of tensor mesons are...
285. 轻+重赝标介子半轻衰变的DSE研究
Dr Zhao-Qian Yao (Nanjing University)
10/08/2022, 17:45
强子物理与味物理
Oral report

Dyson-Schwinger 方程 (DSEs) 已被广泛地应用于轻+轻、轻+重和重+重介子性质的研究。基于此方法，我们对轻+重介子的每个半轻衰变的形状因子和衰变宽度进行了计算，包括 B_((s))→π(K), D_s→K; D→π,K, K→π 和 B_c→η_c, 𝐽/𝜓。在这些计算中，我们的结果定量地与现有数据一致，并分析了迄今未测量的 D_s→K^0, B ̅s→K^+形状因子。分析给出|𝑉𝑐𝑠 | = 0.974(10)，并预言了赝标量介子的所有分支分数比，如B_c→η_c, 𝐽/𝜓 的分支分数比，即𝜏和𝜇末态分支比的比值: R(η_c )= 0.313(22)和R_(J/ψ)= 0.242(47)，可以探讨轻子味道的普适性问题。我们的分析证实了标准模型对 R_(J/ψ) 的预言与唯一的实验结果之间存在2𝜎的差异，需要实验进一步验证。
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