中国格点QCD第一届年会

Name: 中国格点QCD第一届年会
Start: 2021-10-30T08:00:00+08:00
End: 2021-11-02T18:00:00+08:00
Location: 线上

30 October 2021 to 2 November 2021

线上

Asia/Shanghai timezone

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Contribution List

4. 开幕致辞

Prof. 恩科王

30/10/2021, 09:00

session1

59. 开幕致辞

Prof. Yifang Wang (高能所)

30/10/2021, 09:10

session1

5. 中国格点量子色动力学的历史、现状和未来

Prof. 川刘 (北京大学物理学院)

30/10/2021, 09:20

session1

65. Challenges in computing partons on lattice

Prof. 向东季

30/10/2021, 10:10

session1

EIC in China will primarily probe parton physics in a high-energy proton or nucleus. However, computing partons on lattice is a difficult task and may take years to get high precisions. In this talk, I will consider a number of key factors which one must control to get reliable calculations, which include renormalization of linear divergences, taking continuum limit, creating large...

8. Electron Ion Collider in China (EicC)

Prof. 宇翔赵 (中国科学院近代物理研究所)

30/10/2021, 10:50

session1

Lepton scattering is an established ideal tool for studying inner structure of small particles such as nucleons as well as nuclei. As a future high energy nuclear physics project, an Electron-ion collider in China (EicC) has been proposed. It will be constructed based on an upgraded heavy-ion accelerator, High Intensity heavy-ion Accelerator Facility (HIAF) which is currently under...

6. 新一代神威超算应用支撑系统

芳李

30/10/2021, 11:20

session1

7. Recent results from BESIII experiment

Prof. Beijiang LIU (高能所)

30/10/2021, 14:00

session2

BESIII is an experiment running at tau-charm energy region at the Beijing Electron Positron Collider (BEPCII). Since the first data taking in 2009, BESIII has accumulated the world’s largest data samples of D and Ds meson decays, 10 billion J/ψ and 2.7 million ψ(3686) events, and about 100 million events with center-of-mass energy between 4 and 4.9 GeV for studies of nonstandard hadrons and...

10. Bridging lattice QCD to experiments using effective field theory for hadron spectroscopy

Prof. Feng-Kun Guo (ITP, CAS)

30/10/2021, 14:30

session2

11. Hadron spectroscopy on the lattice

Prof. 莹陈 (高能所)

30/10/2021, 15:00

session2

This is a brief review of lattice studies on hadron spectroscopy in China. The opportunities and challenges will be discussed also.

12. Hadron structure in China

Prof. Yi-Bo Yang (ITP/CAS)

30/10/2021, 15:30

session2

I will briefly review the history and status of the lattice QCD calculation of the hadron structure in China, and discuss the present plan to reach the next milestone.

13. Scientific opportunities and Computing challenges in Hot & Dense Lattice QCD

Prof. Heng-Tong Ding (Central China Normal University)

30/10/2021, 16:00

session2

14. Lattice QCD and high intensity frontiers

Prof. 旭冯 (Peking University)

30/10/2021, 16:30

session2

15. 面向国产超算的格点QCD软件系统前瞻

Prof. 明宫

30/10/2021, 17:00

session2

45. What can Lattice QCD provide for Hadron Spectroscopy

Prof. 佳俊吴 (University of Chinese Academy of Sciences)

31/10/2021, 09:00

session3

Lattice QCD is one of the most important tool to study hadron physics. The key point by using lattice QCD results to study hadron physics is to transfer lattice QCD spectrum to the observables. The famous Luscher equation provides a powerful method to connect them. We also develop an alternative method, named as Hamiltonian Effective Field Theory (HEFT) method. In this talk we will introduce...

66. Lorentz invariant 3-body quantization condition in Lattice QCD

锦毅庞 (University of Shanghai of Science and Technology)

31/10/2021, 09:30

session3

The three-particle quantization condition on the lattice is written down in a manifestly relativistic-invariant form by using a generalization of the non-relativistic effective field theory (NREFT) approach. A partial diagonalization of the quantization condition into the various irreducible representations of the (little groups of the) octahedral group has been carried out both in the...

46. The study of pseudoscalar glueball on Lattice QCD

Prof. 龙成桂 (Hunan Normal University)

31/10/2021, 10:00

session3

47. Finite-volume and finite-tempetature effects in chiral effective field theory

Prof. 志辉郭 (东南大学)

31/10/2021, 10:30

session3

48. Most charming dibaryon

Yan Lyu (s)

31/10/2021, 11:00

session3

A pair of triply charmed baryons, $Ω_{ccc}Ω_{ccc}$, is studied as an ideal dibaryon system by $(2+1)$-flavor lattice QCD with nearly physical light-quark masses and the relativistic heavy quark action with the physical charm quark mass. The spatial baryon-baryon correlation is related to their scattering parameters on the basis of the HAL QCD method. The $Ω_{ccc}Ω_{ccc}$ in the $^1S_0$ channel...

49. Possibility of Glueball at Physical Point

飞宇陈

31/10/2021, 11:20

session3

We perform an exploratory study of glueballs on two RBC/UKQCD gauge ensembles with the $N_f=2+1$ physical quark masses at two lattice spacings. The statistical uncertainties of the glueball correlation functions are considerably reduced through the cluster decomposition error reduction (CDER) method. The Bethe-Salpeter wave functions are obtained for the scalar, tensor and pseudoscalar...

44. Lattice QCD study of multi-quark states

Prof. Liuming Liu (Institute of Modern Physics, CAS)

31/10/2021, 11:40

session3

16. Weak Decays of Charmed Baryons from LQCD

Prof. Wei Wang (Shanghai JiaoTong University)

31/10/2021, 14:00

session4

51. Valence parton distribution of pion from lattice QCD at physical point

Dr 翔高

31/10/2021, 14:30

session4

We present the first lattice calculation of pion valence parton distribution using matching formula at NNLO level. We use the Wilson-Clover fermion on three 2+1 flavor HISQ ensembles of lattice spacings a = 0.04, 0.06 and 0.076 fm, with two pion mass including the physical one. Two unitary Domain-Wall calculations at physical point are also presented. This allows us to control the continuum...

52. Proton momentum and angular momentum decompositions with overlap fermions

Dr Gen Wang (University of Kentucky)

31/10/2021, 15:00

session4

17. Lattice QCD Calculation of TMD Soft Function Through Large-Momentum Effective Theory

Dr 其安张 (Shanghai Jiao Tong University)

31/10/2021, 15:30

session4

18. Distribution amplitudes from lattice QCD

Dr 俊华 (Shanghai Jiao Tong University)

31/10/2021, 16:00

session4

We present the first lattice QCD calculation of the distribution amplitudes of longitudinally and transversely polarized vector mesons K∗ and φ using large momentum effective theory. We use the clover fermion action on three ensembles with 2+1+1 flavors of highly improved staggered quarks (HISQ) action, generated by MILC collaboration, at physical pion mass and {0.06, 0.09, 0.12} fm lattice...

21. Collins-Soper kernel from transverse momentum-dependent wave functions in LaMET

旻寰楚 (Shanghai Jiao Tong University)

31/10/2021, 16:30

session4

In this work we present the transversity $b_{\perp}$-dependence Collins-Soper kernel extracted from pion transverse momentum dependent wave functions in the framework of large momentum effective theory from lattice QCD. We use clover fermion action with $2 + 1 + 1$ flavors of highly improved staggered quarks (HISQ), generated by MILC Collaboration. A single ensemble is used, with lattice...

Dr 瑜张

31/10/2021, 16:50

session4

In this talk I will present the novel relations between the quark mass derivatives [$\partial^n \rho(\lambda,m_l)/\partial m_l^n$] of the Dirac eigenvalue spectrum and the $(n+1)$-point correlations among the eigenvalues. Using these relations we present lattice QCD results for $\partial^n \rho(\lambda,m_l)/\partial m_l^n$ ($n=1, 2, 3$) for $m_l$ corresponding to pion masses...

19. Renormalization and extrapolation strategies for parton physics from lattice QCD

Prof. Jianhui Zhang (Beijing Normal University)

01/11/2021, 09:00

session5

20. Lattice calculation powered by factorization theory

Prof. Yan-Qing Ma (Peking University)

01/11/2021, 09:30

session5

53. DSEs meet LQCD: foundations of EHM

Prof. 雷常 (Nankai University)

01/11/2021, 10:00

session5

54. The contribution of QCD trace anomaly to hadron mass

Dr HE Fangcheng

01/11/2021, 10:30

session5

We present the first Lattice QCD calculation of the quark and gluon trace anomaly contributions to the hadron masses, using the overlap fermion on the 2+1 flavor dynamical Domain wall quark ensemble. The result shows that the gluon trace anomaly contributes to most of the nucleon mass, and the contribution in the pion state is smaller than that in others.

55. Flavor contents of the vacuum from the Dirac spectrum of overlap fermions

Prof. Jian Liang (华南师范大学)

01/11/2021, 11:00

session5

61. Transverse Momentum Dependent PDF Calculation

宇杰潘 (N)

01/11/2021, 11:30

session5

22. QCD at finite temperature and density within functional renormalization group approach

Prof. 伟杰付 (大连理工大学)

01/11/2021, 14:00

session6

In this talk, I would like to discuss recent progress in studies of QCD at finite temperature and densities within the functional renormalization group (fRG) approaches, e.g., the QCD phase structure, QCD equation of state, baryon number fluctuations, spectral functions, real-time dynamics, etc. The relevant results are compared with those obtained from recent lattice simulations. The fRG is a...

23. Study the QCD Phase Structure via RHIC Beam Energy Scan

Prof. Xiaofeng Luo (Central China Normal University)

01/11/2021, 14:30

session6

24. Quarkonia and heavy quark diffusion in the hot gluonic medium

Dr Hai-Tao Shu (R)

01/11/2021, 15:00

session6

In this talk I will report our recent lattice calculations on the heavy quark diffusion in the hot medium. The calculations are carried out in the quenched approximation on large, fine, isotropic lattices. The quark masses cover physical charm quark mass, physical bottom quark mass and infinite heavy quark mass.

25. Fluctuations of conserved charges in strong magnetic fields

Dr Junhong Liu (C)

01/11/2021, 15:30

session6

We present results on the second-order fluctuations of and correlations among net baryon number, electric charge, and strangeness in (2+1)-flavor lattice QCD in the presence of a background magnetic field. We extended our previous simulations with pion mass $m_\pi=$220 MeV [1] to physical pion mass $m_\pi=140$ MeV. Simulations are performed on $32^3\times8$ lattices using the highly improved...

26. Chiral properties of (2+1)-flavor QCD in strong magnetic fields at zero temperature

Dr Sheng-Tai Li (CCNU)

01/11/2021, 16:00

session6

We have performed (2+1)-flavor QCD lattice simulations using the Highly Improved Staggered Quarks (HISQ) action on $N_{\sigma}=32$ and $N_{\tau}=96$ lattices. In our lattice simulations the strange quark mass is fixed to its physical quark mass $m_{s}^{\rm phy}$ and light quark mass is set to $m_{s}^{\rm phy}/10$ which corresponds to $M_{\pi} \approx $ 220 MeV at zero temperature. We have...

34. lattice ensemble generation with clover action

Prof. 鹏孙 (Nanjing Normal University)

01/11/2021, 16:30

session6

28. Lattice calculation of the muon g-2

Prof. Luchang Jin (University of Connecticut)

02/11/2021, 09:00

session7

29. Lattice calculation of the $K_L$ and $K_S$ mass difference for physical quark masses

Dr Bigeng Wang (U)

02/11/2021, 09:30

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...

30. 格点场论研究早期宇宙对称性破缺

Prof. 立功边 (重庆大学)

02/11/2021, 10:00

session7

31. Charmonia Decays on the Lattice

Dr 雨孟 (school of physics Peking Uniersity)

02/11/2021, 10:30

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 spacings,...

32. Charm meson decay constants from lattice QCD

Prof. Zhaofeng LIU (Institute of High Energy Physics, CAS)

02/11/2021, 11:00

session7

33. K->lnul'+l'-衰变宽度的格点计算

心宇脱 (PKU)

02/11/2021, 11:30

session7

56. Lattice QCD calculation of the two-photon exchange contribution to the muonic-hydrogen Lamb shift

杨傅 (PKU)

02/11/2021, 11:50

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.

50. Recent progress in the construction of covariant chiral nuclear forces

Prof. 立升耿 (Beihang University)

02/11/2021, 14:00

session8

58. Nuclear reactions in harmonic-oscillator traps

Prof. Bingwei Long (Sichuan University)

02/11/2021, 14:30

session8

57. Recent development in lattice effective field theory

Prof. 炳楠吕 (G)

02/11/2021, 15:00

session8

35. Quantum Computing Platform for High Energy Physics

Dr Yujiang Bi (IHEP)

02/11/2021, 15:30

session8

36. Lattice QCD gauge configuration generation at near physical point

Prof. 玮孙 (高能所)

02/11/2021, 16:00

session8

The solve of Dirac equation for light quarks in lattice QCD suffered from the critical mass slowing down problem, which can be solved by the recently developed multigrid method. In this talk, I will discuss the techniques and algorithms in lattice QCD gauge configuration generation, and combine the HMC and multigrid algorithm to speed up the gauge configuration generation at near physical point.

37. Machine learning spectral functions in lattice QCD

世阳陈

02/11/2021, 16:30

session8

We study the inverse problem of reconstructing spectral functions from Euclidean correlators via machine learning. We propose a novel neutral network, sVAE, which is based the variational autoencoder (VAE) and can be naturally applied to study the inverse problem. The prominent feature of the sVAE is that a Shannon-Jaynes entropy term having the ground truth values of spectral functions as...

38. Lattice realization of $\xi$ gauge

春江施

02/11/2021, 16:50

session8

We perform a lattice implement of $\xi$ gauge, a more general covariant gauge. We will present the performance of our lattice realization in $\xi$ gauge and primary results of gluon propagators and dynamical overlap quark propagators with $\xi \in [0, 0.2]$. We calculate several renormalization constants under $\xi$ gauge configurations and discuss the gauge invariance under the MS-bar scheme...

39. Propagator generation with Chroma+QUDA for various fermion actions

宽张 (ITP)

02/11/2021, 17:10

session8

We will present how to calculate propagators on Chroma with overlap and HISQ (highly improved staggered quark) valence quark, which are not fully supported on Chroma before. For overlap, we setup the fermion action based on polynomials of hwilson action, create overlap dslash on QUDA, migrate Arnoldi algorithm from gwu-code to solve the eigensystem for deflation, and migrate multishift...

9. TBD

Prof. 杰孟 (北京大学)

40. TBD

Prof. Bingwei Long (Sichuan University)

41. TBD

Prof. 炳楠吕 (G)

42. TBD

Prof. 立升耿 (Beihang University)

43. TBD

Dr 杨傅 (PKU)

0. What can Lattice QCD provide for Hadron Spectroscopy

Prof. Jia-jun Wu (UCAS)