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SUMMARY:Lattice QCD study of the $K^*(892)$ resonance at the physical poin
 t
DTSTART;VALUE=DATE-TIME:20261010T033000Z
DTEND;VALUE=DATE-TIME:20261010T040000Z
DTSTAMP;VALUE=DATE-TIME:20261005T020914Z
UID:indico-contribution-640-2832@indico.itp.ac.cn
DESCRIPTION:Speakers: 衢智 李 (Sichuan University)\nWe present a lattic
 e QCD study of the $K^*(892)$ resonance using\n	eight $N_f=2+1$ Wilson-Clo
 ver ensembles with three lattice spacings\n	and six pion masses ranging fr
 om 135 to 320 MeV. For each ensemble\,\n	a large number of finite volume e
 nergy levels in the $P$-wave $K\\pi$\n	channel are determined. The energy 
 dependence of the scattering\n	phase shift is then obtained from L\\"usche
 r’s finite-volume\n	method. To systematically assess parametrization dep
 endence\, the\n	amplitude is described using three different models\, whic
 h yield\n	consistent results. The resulting phase shifts show a clear reso
 nant\n	behavior for all ensembles\, and the corresponding $K^*(892)$\n	res
 onance pole is identified on the second Riemann sheet in the\n	complex ene
 rgy plane. The pole positions are extrapolated to the\n	physical pion mass
  and the continuum limit\, yielding a $K^*(892)$\n	resonance located at $\
 \sqrt{s_0} = [883.0(6.9) -i20.1(2.2)]\\mathrm{ MeV}$\,\n	which is in excel
 lent agreement with the experimental value. This\n	study provides a first-
 principles QCD determination of the\n	$K^*(892)$ mass and width  with esti
 mated systematic uncertainties.\n\nhttps://indico.itp.ac.cn/event/437/cont
 ributions/2832/
LOCATION:会议楼2 CXII401
URL:https://indico.itp.ac.cn/event/437/contributions/2832/
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SUMMARY:From Longitudinal to Transverse Structure: Hadron Tomography from 
 Lattice QCD
DTSTART;VALUE=DATE-TIME:20261010T030000Z
DTEND;VALUE=DATE-TIME:20261010T033000Z
DTSTAMP;VALUE=DATE-TIME:20261005T020914Z
UID:indico-contribution-640-2828@indico.itp.ac.cn
DESCRIPTION:Speakers: 俊 华 (South China Normal University)\nUnderstandi
 ng the partonic structure of hadrons from first principles is a major goal
  of lattice QCD. In this talk\, I will review recent progress by the Latti
 ce Parton Collaboration using large-momentum effective theory (LaMET). I w
 ill first discuss lattice determinations of longitudinal parton structure\
 , including parton distribution functions and light-cone distribution ampl
 itudes of mesons and baryons\, together with recent developments in renorm
 alization\, perturbative matching\, and large-momentum extrapolation. I wi
 ll then turn to transverse-momentum-dependent distributions\, where lattic
 e calculations have progressed from the soft function and Collins–Soper 
 kernel to TMD wave functions\, unpolarized TMDPDFs\, and spin-dependent di
 stributions. These developments illustrate the emerging capability of latt
 ice QCD to quantitatively resolve the multidimensional partonic structure 
 of hadrons.\n\nhttps://indico.itp.ac.cn/event/437/contributions/2828/
LOCATION:会议楼2 CXII401
URL:https://indico.itp.ac.cn/event/437/contributions/2828/
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SUMMARY:Understand Hadron structure from Wick Contraction
DTSTART;VALUE=DATE-TIME:20261010T023000Z
DTEND;VALUE=DATE-TIME:20261010T030000Z
DTSTAMP;VALUE=DATE-TIME:20261005T020914Z
UID:indico-contribution-640-2856@indico.itp.ac.cn
DESCRIPTION:Speakers: 佳俊 吴 (UCAS)\n我们提出一种新方案，通
 过研究不同维克收缩的图形，可以用以分辨强子的内部
 结构信息。我们对ρ介子中ππ到ππ的两类维克收缩图进
 行计算，可以清楚看到当四条夸克线都是从soure到sink的
 情况下，并不会出现ρ介子的能级贡献，这表明ρ中的两
 夸克成分是主要的。\n\nhttps://indico.itp.ac.cn/event/437/contribu
 tions/2856/
LOCATION:会议楼2 CXII401
URL:https://indico.itp.ac.cn/event/437/contributions/2856/
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