Conveners
Parallel Session II：Hadron and Flavor Physics
- 翔 刘 (兰州大学)
- Feng-Kun Guo (ITP, CAS)
- Beijiang LIU (高能所)
- Zhenwei Yang (Peiking University, Beijing, China)
Parallel Session II：Hadron and Flavor Physics
- Feng-Kun Guo (ITP, CAS)
- 翔 刘 (兰州大学)
- Beijiang LIU (高能所)
- Zhenwei Yang (Peiking University, Beijing, China)
Parallel Session II：Hadron and Flavor Physics
- Feng-Kun Guo (ITP, CAS)
- 翔 刘 (兰州大学)
- Zhenwei Yang (Peiking University, Beijing, China)
- Beijiang LIU (高能所)
Parallel Session II：Hadron and Flavor Physics
- 翔 刘 (兰州大学)
- Feng-Kun Guo (ITP, CAS)
- Zhenwei Yang (Peiking University, Beijing, China)
- Beijiang LIU (高能所)
Parallel Session II：Hadron and Flavor Physics
- Zhenwei Yang (Peiking University, Beijing, China)
- 翔 刘 (兰州大学)
- Feng-Kun Guo (ITP, CAS)
- Beijiang LIU (高能所)
Parallel Session II：Hadron and Flavor Physics
- Beijiang LIU (高能所)
- 翔 刘 (兰州大学)
- Zhenwei Yang (Peiking University, Beijing, China)
- Feng-Kun Guo (ITP, CAS)
Parallel Session II：Hadron and Flavor Physics
- Feng-Kun Guo (ITP, CAS)
- Zhenwei Yang (Peiking University, Beijing, China)
- 翔 刘 (兰州大学)
- Beijiang LIU (高能所)
Parallel Session II：Hadron and Flavor Physics
- Zhenwei Yang (Peiking University, Beijing, China)
- 翔 刘 (兰州大学)
- Feng-Kun Guo (ITP, CAS)
- Beijiang LIU (高能所)
Parallel Session II：Hadron and Flavor Physics: Parallel Session II：Hadron and Flavor Physics
- 翔 刘 (兰州大学)
- Beijiang LIU (高能所)
- Zhenwei Yang (Peiking University, Beijing, China)
- Feng-Kun Guo (ITP, CAS)
Parallel Session II：Hadron and Flavor Physics: Parallel Session II：Hadron and Flavor Physics
- Zhenwei Yang (Peiking University, Beijing, China)
- 翔 刘 (兰州大学)
- Feng-Kun Guo (ITP, CAS)
- Beijiang LIU (高能所)
Hongjie MU
(Tsinghua University)
16/08/2021, 14:00
2. 强子物理与味物理
Oral report
Study of spectroscopy of heavy flavour hadrons can help to understand non-perturbative QCD. Observation of new excited heavy flavour hadrons will provide important constraints on theoretical models of heavy flavour spectroscopy. This talk presents recent results of new excited heavy flavour hadrons at LHCb.
Houbing Jiang
(Shandong University)
16/08/2021, 14:20
2. 强子物理与味物理
Oral report
With the accumulation of data samples above 4 GeV in recent years, BESIII collaboration has systematically investigated possible conventional charmonia and Y states, as well as their decay channels. Through a series of process cross section measurements, including open charm and hidden charm channels, BESIII provided a lot of information on the vector states. In this talk, we would like to...
Yunxuan Song
(Peking University , University of Chinese Academy of Sciences)
16/08/2021, 14:35
2. 强子物理与味物理
Oral report
In this talk, some recent results on the non-vector charmonium(-like) states at BESIII will be presented. It will include an observation of a near-threshold enhancement in the Lambda Lambda-bar mass spectrum from e+ e- -> phi Lambda Lambda-bar at sqrt(s) from 3.5 to 4.6 GeV, search for new decay modes of the D-wave state psi(3823) and the process e+ e- -> pi0 pi0 psi(3823), and study of e+ e-...
Prof.
Jianbin Jiao
(Shandong University)
16/08/2021, 14:55
2. 强子物理与味物理
Oral report
Recent results from Belle will be reviewed
Mr
Ning Cao
(Institute of High Energy Physics, Chinese Academy of Sciences)
16/08/2021, 15:15
2. 强子物理与味物理
Oral report
Due to the high production of light mesons J/ψ radiative and hadronic decays, the largest sample of J/ψ events accumulated at the BESIII detector offers a unique laboratory to study the light mesons spectroscopy and search for the light exotic states. In this talk, we shall report the recent progresses on the light meson spectroscopy achieved at BESIII.
Dr
Xiaolin Kang
16/08/2021, 15:30
2. 强子物理与味物理
Oral report
The world’s largest sample of J/ψ 1.3 billion events accumulated at the BESIII dector offers a unique opportunity to study light meson decays. In recent years the BESIII experiment has made significant progresses in eta/eta' decays, including observation of eta'->pi+pi- mu+mu-, search for the rare decays of eta’à4pi0 and eta’àgam gam eta as well as the search for CP violation in eta’àpi+pi-...
蒋 艺
(University of Chinese Academy of Sciences)
16/08/2021, 15:45
2. 强子物理与味物理
Oral report
In this talk, a new general and user-friendly partial wave analysis framework called TF-PWA will be introduced. TF-PWA is developed based on the open-source library TensorFlow. It uses modern techniques like GPU, vectorized calculation and automatic differentiation to accelerate amplitude analyses. It is also a general PWA framework and can be used in most of the amplitude analyses easily....
Dr
kan chen
(Peking university)
16/08/2021, 16:10
2. 强子物理与味物理
Oral report
We perform a systematic study on the interactions of the
$\Sigma_c^{(*)}D^{(*)}$ systems within the framework of chiral
effective field theory. We introduce the contact term,
one-pion-exchange and two-pion-exchange contributions to describe
the short-, long-, and intermediate-range interactions. The low
energy constants of the $\Sigma_c^{(*)}D^{(*)}$ systems are
estimated from the...
Mr
Xiang-Kun Dong
(ITP,CAS)
16/08/2021, 16:30
2. 强子物理与味物理
Oral report
In a recent measurement LHCb reported pronounced structures in the $J/\psi J/\psi$ spectrum. One of the various possible explanations of those is that they emerge from non-perturbative interactions of vector charmonia. It is thus important to understand whether it is possible to form a bound state of two charmonia. Two charmonia interact through the exchange of gluons, which hadronise into two...
Mr
Hongrong Qi
(Tsinghua University)
16/08/2021, 16:50
2. 强子物理与味物理
Oral report
Reviewing the experimental and theoretical status of Y(4260), the presentation will discuss the nature of Y(4260) from five aspects: mass predicted by potential model, OZI-suppessed/-allowed decays, non-peak in R scan, leptonic width, and radiative width. In the end, we are going to give a brief summary and prospect.
智 杨
(电子科技大学)
16/08/2021, 17:10
2. 强子物理与味物理
Oral report
We first incorporate the relativized
quark model and 3P0 model into HEFT to investigate the coupled-channel effects, and further study
the impact on the masses of exotic state with Lattice simulation.
志宏 沈
(Peking University)
16/08/2021, 17:30
2. 强子物理与味物理
Oral report
Exotic hadrons can provide rich information to further understand the strong interaction between quarks and gluons. Many tetraquark states containing charm quarks have been discovered by the LHCb experiment since the start of the Large Hadron Collider. This talk presents recent observations of heavy-flavour tetraquark states.
Bo Fang
(Wuhan University)
16/08/2021, 17:50
2. 强子物理与味物理
Oral report
Since the first observation of pentaquark candidates by LHCb in 2015, much efforts have been made from both theoretical and experimental sides to understand the nature of pentaquark states. This talk presents latest results of pentaquark states from the LHCb experiment.
Dr
Fangcheng HE
(Institute for Theoretical Physics, CAS)
17/08/2021, 08:30
2. 强子物理与味物理
Oral report
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.
Mr
Dianjun Zhao
(Institute of Theoretical Physics，Chinese Academy of Sciences)
17/08/2021, 08:50
2. 强子物理与味物理
Oral report
We will present the pion mass and decay constant using the overlap fermion valence on DW fermion sea at several lattice lattice spacings. The mixed action effect in the lattice calculation is also studied, and the result suggests that the mixed action effect with overlap valence on DW sea would be proportional to the fourth power of the lattice spacing.The preliminary determination of the...
Mr
Ren-qiang Zhang
(IHEP)
17/08/2021, 09:10
2. 强子物理与味物理
Oral report
The first lattice QCD study of the mixing of $\eta_c$ and pseudoscalar glueball was performed.
We generated two large ensembles of gauge configuration with $N_f=2$ degenerate charm quarks on anisotropic lattices,
with spatial lattice spacing $a_s=0.1026$ fm and anistropy $\xi=5$, where the charm sea quark mass was tuned to
give vector charmonium $J/\psi$ mass $m_{J/\psi}= 2743$ and $3068$...
Hui Tong
(s)
17/08/2021, 09:30
2. 强子物理与味物理
Oral report
A pair of triply charmed baryons, $\Omega_{ccc}\Omega_{ccc}$, 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...
Dr
Yu Meng
(CHEP, Peking University)
17/08/2021, 09:50
2. 强子物理与味物理
Oral report
The two-photon decay process ηc→2γ can provide an ideal testing ground for the understanding of nonperturbative nature of QCD. In this study, we propose a direct method to calculate the matrix element of a hadron decaying to two-photon. Various systematic effects are examined in this work. The method developed here can also be applied for other processes which involve the leptonic or radiative...
Bao-Dong Sun
(Shandong University, QingDao)
17/08/2021, 10:10
2. 强子物理与味物理
Oral report
Trace anomaly contribution to hydrogen atom mass
Jianhui Zhang
(Beijing Normal University)
17/08/2021, 10:40
2. 强子物理与味物理
Oral report
Calculating the partonic structure of hadrons from lattice QCD has attracted a lot of attention in the past few years. In this talk, I'll discuss some important steps towards precision calculations of the partonic structure of hadrons.
Dr
Ruilin Zhu
(Nanjing Normal University)
17/08/2021, 11:00
2. 强子物理与味物理
Oral report
We present the next-to-next-to-leading order (NNLO) calculation of quark quasi-parton distribution functions (PDFs) in the large momentum effective theory. The nontrivial factorization at this order is established explicitly and the full analytic matching coefficients between the quasi-distribution and the light-cone distribution are derived.
In addition, we will give an overview of the...
Dr
Jun Hua
(Shanghai Jiao Tong University)
17/08/2021, 11:20
2. 强子物理与味物理
Oral report
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...
旻寰 楚
(Shanghai Jiao Tong University)
17/08/2021, 11:40
2. 强子物理与味物理
Oral report
We’ll present the first lattice QCD calculation of transverse momentum dependence wave function of pion 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 pion mass 670MeV and 0.12 fm lattice spacing, choose three different hadron momenta Pz={1.72,...
Prof.
peng sun
(NJNU)
17/08/2021, 11:55
2. 强子物理与味物理
Oral report
I will talk about Lattice ensembles generation with Clover actions.
Prof.
Yuming Wang
(Nankai University)
17/08/2021, 14:00
2. 强子物理与味物理
Oral report
I will discuss the recent theory development on exclusive B-meson decays.
Dr
Qin Qin
(华中科技大学(HUST))
17/08/2021, 14:20
2. 强子物理与味物理
Oral report
We propose to search for the doubly-heavy baryon $\Xi_{bc}$ via the inclusive $\Xi_{bc} \to \Xi_{cc} + X$ decay with a displaced vertex. We calculate its decay width and find it at the order of $10^{-13}$ GeV. We also estimate that hundreds of signal events are expected to be observed at the LHCb RUN3.
Peicheng Jiang
(Peking Uniersity)
17/08/2021, 14:40
2. 强子物理与味物理
Oral report
In the quantum-entangled neutral kaons system, the two kaons can be described as wave functions. When one kaon collapses into the $K_S$ state, the other one collapses instantaneously into the $K_L$ state, showing the relation between entanglement and nonlocality. In this work, in order to test the instantaneous effect, we introduce the locality hypothesis assuming that decay information...
Xingbo Zhao
(Institute of Modern Physics, Chinese Academy of Sciences)
17/08/2021, 15:00
2. 强子物理与味物理
Oral report
The light front is a three-dimensional hypersurface tangential to the light cone. The field theory quantized on the light front provides unique advantages in describing the structure of relativistic bound states. In this work we solve the structure of the nucleon in a nonperturbative approach based on the Hamiltonian formalism of the light-front field theory. The input Hamiltonian includes an...
Lei Li
(Beijing Institute of Petro-chemical Technology)
17/08/2021, 15:20
2. 强子物理与味物理
Oral report
BESIII has collected 2.9, 6.3 and 4.4 fb-1 of e+e- collision data samples at 3.773, 4.178-4.226 and 4.6-4.7 GeV, respectively. We report recent measurements of strong phase differences in D0 and D0-bar decays of KSpi+pi-, KSK+K-, K-pi+pi+pi- and K-pi+pi0. The obtained parameters are important to reduce the systematic uncertainty in the gamma/phi_3 measurement at LHCb and Belle II. Also, we...
葳 单
(湖南师范大学)
17/08/2021, 16:05
2. 强子物理与味物理
Oral report
Prosepcts of flavor physics at Belle II will be discussed.
清平 姬
(河南师范大学)
17/08/2021, 16:20
2. 强子物理与味物理
Oral report
Prospects of exotic states at Belle II will be discussed.
Guang Zhao
(IHEP)
, Dr
Sheng-Sen Sun
(Institute of High Energy Physics)
,
ZHAO Guang
(高能所)
17/08/2021, 16:35
2. 强子物理与味物理
Oral report
The PANDA experiment will be one of the key experiments at the Facility for Antiproton and Ion Research (FAIR) which is under construction and currently being built in Darmstadt, Germany. The EMC software development is in processing in order to achieve good energy and spatial resolution, the capability of an electron hadron separation, and also the feasibility of PANDA physics program....
野 田
(Institute of Modern Physics, Chinese Academy of Sciences)
17/08/2021, 16:50
2. 强子物理与味物理
Oral report
Status of the R&D and physics prospects of EicC and will be discussed.
Xiaorong Zhou
(University of Science and Technology of China)
17/08/2021, 17:05
2. 强子物理与味物理
Oral report
The proposed STCF is a symmetric electron-positron beam collider designed to provide e+e− interactions at a centerof-mass energy from 2.0 to 7.0 GeV. The peaking luminosity is expected to be 0.5×10^35 cm−2s−1 The energy region of STCF covers the pair production thresholds for tau-leptons, charmed meson & baryons, and all of the strange hyperons. STCF is expected to deliver more than 1 ab−1 of...
Yixiong Zhou
(University of Chinese Academy of Sciences)
18/08/2021, 08:30
2. 强子物理与味物理
Oral report
Recent results of doubly charmed baryons at LHCb will be reported in this talk.
Shiyang Li
(Central China Normal University)
18/08/2021, 08:45
2. 强子物理与味物理
Oral report
Recent results of beauty-charm baryons at LHCb will be reported in this talk.
冬 敖
(清华大学)
18/08/2021, 09:00
2. 强子物理与味物理
Oral report
A measurement of the lifetimes of the $\Omega_c^0$ and $\Xi_c^0$ baryons is reported using proton-proton collision data at a centre-of-mass energy of 13 TeV collected by the LHCb experiment. The $\Omega_c^0$ and $\Xi_c^0$ baryons are produced directly from proton interactions and reconstructed in the $p K^- K^- \pi^+$ final state. The $\Omega_c^0$ lifetime is measured to be $276.5\pm 13.4\pm...
祥 潘
(高能所)
18/08/2021, 09:20
2. 强子物理与味物理
Oral report
BESIII has collected 2.9 and 6.3 fb-1 of e+e- collision data samples at 3.773 and 4.178-4.226 GeV, respectively. We report recent measurements of the (semi)leptonic decays D(s) -> l+nu (l=mu, tau) and D(s) -> X l+nu [X=K(*), rho, eta('), a_0, K_1, and l=e, mu]. The decay constants f_D(s), the semileptonic form factors f(0) and the CKM matrix elements |V_cs(d)| are determined precisely. These...
Dr
Xiaoshuai Qin
(Shandong University)
18/08/2021, 09:40
2. 强子物理与味物理
Oral report
The observed matter-antimatter asymmetry in the universe composes a serious challenge to our understanding of nature. BNV/LNV/cLFV decays have been searched in many experiments to understand this large-scale observed fact, and few in the case of $e^+e^-$ collision experiments are performed. In this talk, we present recent results to search for BNV and LNV/cLFV from $J/\psi$, $D^+$, $D^0$ and...
Dr
Lei Xia
(University of Science and Technology of China)
18/08/2021, 09:55
2. 强子物理与味物理
Oral report
Nucleons are one of the most fundamental building blocks of ordinary matter, yet their internal structure and dynamics are still not fully understood. Electromagnetic form factors allow to investigate fundamental properties of the nucleon. The BESIII collaboration has studied the time-like form factors of the proton using the energy scan and the ISR technique. The |GE/GM| ratio is obtained...
维平 王
(University of Science and Technology of China)
18/08/2021, 10:10
2. 强子物理与味物理
Oral report
Hyperons provide an unique avenue to study the strong interaction in baryon structure. Due to their limited life time, the production in e+e- annihilations is the only viable way to obtain information on the hyperon structure and internal dynamics through their electromagnetic form factors. With the unique data sets obtained by the BESIII collaboration, the pair production cross sections for...
Kai-bao Chen
(Shandong Jianzhu University)
,
Shu-yi Wei
(ECT)
,
Yu-kun Song
(University of Jinan)
,
Zuo-tang Liang
(Shandong University)
18/08/2021, 10:40
2. 强子物理与味物理
Oral report
In this talk, we present a systematic study of the isospin symmetry of fragmentation functions by taking decay contributions into account. We show that in the unpolarized case the isospin symmetry is held for fragmentation functions of Λ and only tiny violations are allowed for other hadrons due to the contributions from weak decays. We present a rough estimate of the magnitudes of such...
Dr
Wai Kin Lai
(South China Normal University)
18/08/2021, 11:00
2. 强子物理与味物理
Oral report
In order to understand the nature of the XYZ particles, theoretical predictions of the various decay modes of the XYZ measured by experiments are essential.
In this work, we focus on the decay of heavy quarkonium hybrids. We study semi-inclusive decays of heavy quarkonium hybrids into traditional quarkonium in the EFT framework.
We found that our numerical results of the decay rates are...
Ji-Feng Yang
(East China Normal University)
18/08/2021, 11:20
2. 强子物理与味物理
Oral report
A simple prescription for calculating the loop corrections in covariant chiral effective theories for baryons is described and demontrated with some simple one-loop diagrams for both SU(2) and SU(3) cases.
Prof.
鼎煜 邵
(复旦大学)
18/08/2021, 11:40
2. 强子物理与味物理
Oral report
We study transverse polarization of Λ hyperons in single-inclusive leptonic annihilation. We show that when the transverse momentum of the Λ baryon is measured with respect
to the thrust axis, a transverse momentum dependent factorization formalism is required
and the polarization is generated by the TMD polarizing fragmentation function (TMD PFF).
However, when the transverse momentum of...
Yuyao Ji
(高能所)
18/08/2021, 14:00
2. 强子物理与味物理
Oral report
The BESIII experiment at the electron positron collider BEPCII in Beijing is successfully operating since 2008 and has collected large data samples in the tau-mass region, including the world’s largest data samples at the J/ψandψ(2S) resonances. The recent observations of hyperon polarizations at BESIII, which opens a new window for searching new physics beyond the SM, also attracts both...
Mr
Yateng Zhang
(ZZU)
18/08/2021, 14:15
2. 强子物理与味物理
Oral report
In e+e- collisions between 2 and 3 GeV, excited states of rho, omega and phi can be produced directly. Especially the resonances around 2GeV like rho(2000), rho(2150) and \phi(2170) are not fully understood yet. Theorists describe the phi(2170) as a traditional s s-bar state, an s s-bar g hybrid, a tetraquark state, a Lambda Lambda-bar bound state, or a phi KK resonance. The predicted decay...
Gang Yu
18/08/2021, 14:30
2. 强子物理与味物理
Oral report
With 448 M psi(2S) events collected with the BESIII detector, many decay studies of charmonium states blow open-charm threshold have been performed. In this talk, some recent progresses will be presented. It will include an observation of the decays chi_cJ -> n Ks anti-Lambda + c.c., measurement of the inclusive branching fraction for psi(2S) -> Ks + anything, measurements of the branching...
Mr
ZEQIANG WANG
(北京师范大学)
18/08/2021, 14:45
2. 强子物理与味物理
Oral report
This paper studies two main partial decay channels f0(980) → KK and f0(980) → ππ
by imposing saturation of compositeness relationship and decay width formula. Referring to the pole parameter of f0(980) comes from dispersive analysis, we calculate a series of partial decay widths and coupling coefficients for each channel. Then the values of the branching ratio help predict the compositeness...
Dr
Chang Gong
(IHEP)
18/08/2021, 15:00
2. 强子物理与味物理
Oral report
The inner dynamics for the fully-heavy quark system is a hot topic. The LHCb Collaboration reported the observation of a tetra-quark candidate X(6900) with a configuration of cccc in the di-J/ψ invariant mass spectrum. We show that the narrow structure X(6900) can be produced via the Pomeron exchange and coupled-channel effects between the jpsi-jpsi、jpsi-psi(2S) scatterings.
Mr
Mengchuan Du
(Institute of High Energy Physics, Chinese Academy of Sciences)
18/08/2021, 15:15
Oral report
We present a systematic study of light axial vector mesons. We find that the Open $K^*\bar{K}$ threshold effect and the resulting triangle singularity are crutial for understanding their decay behaviors.
zhenhua zhang
(Institute of Theretical Physics)
18/08/2021, 15:30
2. 强子物理与味物理
Oral report
The $X(3872)$, whose mass coincides with the $D^0\bar D^{*0}$ threshold, is the most extended hadron object.
Since its discovery in 2003, debates have never stopped regarding its internal structure.
We propose a new object, the X atom, which is the $D^\pm D^{*\mp}$ composite system with positive charge parity and a mass of $(3879.89\pm0.07)$~MeV, formed mainly due to the Coulomb force. We...
Ziyuan LI
(Sun Yat-Sen University)
18/08/2021, 15:55
2. 强子物理与味物理
Oral report
BESIII has collected 448 M $\psi(3686)$ events and 10 B $J/\psi$ events. The huge data sample provide an excellent chance to search for new physics. We report the search for the decay $J/\psi\to\gamma + invisible$, which is predicted by next-to-minimal supersymmetric model. Without significant signal found, we gave about 6 times better upper limits than previous CLEO-c’s results. We also...
玉兰 范
(Wuhan University)
18/08/2021, 16:10
2. 强子物理与味物理
Oral report
We report a sensitive study of measuring b→sγ photon polarisation in D0→K1(1270)−e+νe with an integrated luminosity of L= 1 ab−1 at a center-of-mass energy of 3.773 GeV at future Super Tau Charm Facility. More than 61,000 signals of D0→K1(1270)−e+νe are expected. Based on a fast simulation software package, the statistical sensitivity for the ratio of up-down asymmetry is estimated to be...
儒英 唐
(中国科学院高能物理研究所)
18/08/2021, 16:25
2. 强子物理与味物理
Oral report
In this article, we perform a sensitivity study of an un-binned angular analysis of the $B\to D^{*}\ell \nu_{\ell}$ decay, including the contributions from the right-handed current. We show that the angular observable can constrain very strongly the right-handed current without the intervention of the yet unsolved Vcb puzzle.
Dr
Fei Huang
(Shanghai JiaoTong University)
18/08/2021, 16:40
2. 强子物理与味物理
Oral report
While the standard model is the most successfully theory to describe all interactions and constituents in elementary particle physics, it has been constantly examined for over four decades. Weak decays of charm quarks can measure the coupling strength of quarks in different families and serve as an ideal probe for CP violation. As the lowest charm-strange baryons with three different...
其安 张
(Shanghai Jiao Tong University)
18/08/2021, 16:55
2. 强子物理与味物理
Oral report
The transverse-momentum-dependent (TMD) soft function is a key ingredient in QCD factorization of Drell-Yan and other processes with relatively small transverse momentum. We present a lattice QCD study of this function at moderately large rapidity on a 2+1 flavor CLS dynamic ensemble with a = 0.098 fm. We extract the rapidity-independent (or intrinsic) part of the soft function through a...
Mr
宽 张
(中国科学院理论物理所)
18/08/2021, 17:10
2. 强子物理与味物理
Oral report
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...
Yan Li
(University of Chinese Academy of Sciences)
18/08/2021, 17:25
2. 强子物理与味物理
Oral report
We extend previous work concerning rest-frame partial-wave mixing in Hamiltonian effective field theory to both elongated and moving systems, where two particles are in a periodic elongated cube or have nonzero total momentum, respectively. We also consider the combination of the two systems when directions of the elongation and the moving momentum are aligned. This extension should also be...
