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相关论文: The observed charmed hadron $\Lambda_c(2940)^+$ an…

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The three pentaquark states, $P_c(4312)$, $P_c(4440)$ and $P_c(4457)$, discovered by the LHCb Collaboration in 2019, can be arranged into a complete heavy quark spin symmetry multiplet of hadronic molecules of…

高能物理 - 唯象学 · 物理学 2022-10-12 Ya-Wen Pan , Tian-Wei Wu , Ming-Zhu Liu , Li-Sheng Geng

The chiral nucleon-nucleon ($NN$) interaction at high cutoffs has been plagued by the presence of spurious bound states. In this work, the chiral $NN$ interaction at N$^3$LO is studied by the local projection method as the cutoff increases.…

核理论 · 物理学 2024-01-31 Haoyu Shang , Rongzhe Hu , Junchen Pei , Furong Xu

In this exploratory lattice study, low-energy near threshold scattering of the $(\bar{D}_1 D^{*})^\pm$ meson system is analyzed using lattice QCD with $N_f=2$ twisted mass fermion configurations. Both s-wave ($J^P=0^-$) and p-wave…

高能物理 - 格点 · 物理学 2016-06-29 Ting Chen , Ying Chen , Ming Gong , Yu-Hong Lei , Ning Li , Chuan Liu , Yu-Bin Liu , Zhao-Feng Liu , Jian-Ping Ma , Zhan-Lin Wang , Jian-Bo Zhang

We present a realistic lattice QCD study on low-energy $N$-$J/\psi$ and $N$-$\eta_c$ interactions based on (2+1) flavor configurations with nearly physical pion mass $m_\pi=146$ MeV. The interactions, extracted from the spacetime…

高能物理 - 格点 · 物理学 2024-12-12 Yan Lyu , Takumi Doi , Tetsuo Hatsuda , Takuya Sugiura

In a previous work we presented a theoretical analysis of the $\Lambda_b \to J/\psi K^- p$ reaction from where a recent experiment by the LHCb collaboration at CERN claimed the existence of two hidden charm pentaquarks, $P_c(4380)^+$ and…

高能物理 - 唯象学 · 物理学 2016-11-23 L. Roca , E. Oset

The singlet capture rate $\Lambda_S$ for the semileptonic weak process $\mu+p \to n+\nu_\mu$ has been measured in the MuCap experiment. The novel experimental technique is based on stopping muons in an active target, consisting of a time…

核实验 · 物理学 2019-08-13 Peter Kammel

We have studied the loosely bound $D^*\bar{D}^*$ system. Our results indicate that the recently observed charged charmonium-like structure $Z_c(4025)$ can be an ideal $D^*\bar{D}^*$ molecular state. We have also investigated its pionic,…

高能物理 - 唯象学 · 物理学 2013-11-12 Jun He , Xiang Liu , Zhi-Feng Sun , Shi-Lin Zhu

In the framework of Quark--Gluon--String Model developed recently in ITEP we calculate spectra of charmed particles $D$, $D_s$, $\Lambda_c$, $\Xi_c$, $\Omega_c$ in hadron--hadron collisions taking into account the decays of $S$--wave…

高能物理 - 唯象学 · 物理学 2019-08-17 G. H. Arakelyan , P. E. Volkovitsky

In this work, we study the interaction between a nucleon and a $P$-wave charmed meson in the $T$ doublet by exchanging a pion. Our calculations indicate that a nucleon and a $P$-wave charmed meson with $J^P=0^+$ or $J^P=1^+$ in the $T$…

高能物理 - 唯象学 · 物理学 2014-08-27 Rui Chen , Zhi-Feng Sun , Xiang Liu , S. M. Gerasyuta

Understanding near-threshold strong interactions is essential for disentangling hadronic molecules and compact multiquark states in heavy-flavor spectroscopy. In this context, the doubly charmed tetraquark candidate $T_{cc}(3875)^+$ serves…

高能物理 - 唯象学 · 物理学 2026-03-27 Duo-Lun Ge , Zhi-Wei Liu , Li-Sheng Geng

We investigate the low-energy elastic DbarN interaction using a quark model that confines color and realizes dynamical chiral symmetry breaking. The model is defined by a microscopic Hamiltonian inspired in the QCD Hamiltonian in Coulomb…

核理论 · 物理学 2015-06-11 C. E. Fontoura , G. Krein , V. E. Vizcarra

Auxiliary Field Diffusion Monte Carlo (AFDMC) calculations have been employed to revise the interaction between $\Lambda$-hyperons and nucleons in hypernuclei. The scheme used to describe the interaction, inspired by the phenomenological…

核理论 · 物理学 2014-08-21 Diego Lonardoni , Francesco Pederiva , Stefano Gandolfi

The hadron loop effect is conjectured to be important in understanding discrepancies between the observed states in experiments and the theoretical expectations of non-relativistic potential model. We present that, in an easily operable…

高能物理 - 唯象学 · 物理学 2011-09-08 Zhi-Yong Zhou , Zhiguang Xiao

The interaction of antikaons with nucleons and nuclei in the low-energy regime represents an active research field in hadron physics with still many important open questions. The investigation of light kaonic atoms, in which one electron is…

Ever since Yukawa proposed that the pion is responsible for mediating the nucleon-nucleon interaction, meson exchanges have been widely used in understanding hadron-hadron interactions. The most studied mesons are the $\sigma$, $\pi$,…

高能物理 - 唯象学 · 物理学 2021-12-08 Ming-Zhu Liu , Li-Sheng Geng

The possible existence of nucleon-antinucleon bound states has been studied for decades. We investigate the $e^+e^-\to p\bar{p}$ and $e^+e^-\to n\bar{n}$ cross sections in the nonrelativistic effective field theory framework. The…

高能物理 - 唯象学 · 物理学 2025-03-17 Zhao-Sai Jia , Zhen-Hua Zhang , Feng-Kun Guo , Gang Li

A set of coupled two-body scattering equations is solved for the DN system embedded in an iso-symmetric nuclear matter. The in-medium behavior of charmed D mesons: (D^+,D^0), is investigated from the self-consistent solution within this…

高能物理 - 唯象学 · 物理学 2008-11-26 T. Mizutani , A. Ramos

The status of the light hypernuclei is reviewed, and discussed with models based either on the Nijmegen-RIKEN baryon--baryon interaction or on recent studies using chiral effective field theory. The latter suggests a significantly shorter…

核理论 · 物理学 2015-06-22 Jean-Marc Richard , Qian Wang , Qiang Zhao

The $K^-d\rightarrow\pi\Lambda N$ reaction is useful for exploring the hyperon-nucleon interaction through final state interactions. In particular, the cusp structure of the $\Lambda N$ invariant mass spectrum at the $\Sigma N$ threshold…

核理论 · 物理学 2025-01-27 Shunsuke Yasunaga , Daisuke Jido