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We investigate the interactions of the charged exotic state $Z_c(3900)$ in a hadronic medium composed of light mesons. We study processes such as $Z_c \pi \to D\bar{D}$, $Z_c \pi \to D^*\bar{D}^*$, $Z_c \pi \to D\bar{D}^*$ and the inverse…

高能物理 - 唯象学 · 物理学 2024-10-25 L. M. Abreu , R. O. Magalhães , F. S. Navarra , H. P. L. Vieira

In order to test different models proposed for some states discovered recently in the charmonium mass range that do not fit into the pattern predicted by the conventional quark model, we derive predictions for the spectrum within the…

高能物理 - 唯象学 · 物理学 2015-07-15 Martin Cleven , Feng-Kun Guo , Christoph Hanhart , Qian Wang , Qiang Zhao

At present, decision making solutions developed based on deep learning (DL) models have received extensive attention in predictive maintenance (PM) applications along with the rapid improvement of computing power. Relying on the superior…

机器学习 · 计算机科学 2023-10-30 Chuyue Lou , M. Amine Atoui

Neural Networks have been proved to work as decoders in telecommunications, so the ways of making it efficient will be investigated in this thesis. The different parameters to maximize the Neural Network Decoder's efficiency will be…

信息论 · 计算机科学 2022-04-27 Joshua Tshifhiwa Maumela

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

The search of unconventional magnetic and nonmagnetic states is a major topic in the study of frustrated magnetism. Canonical examples of those states include various spin liquids and spin nematics. However, discerning their existence and…

统计力学 · 物理学 2019-02-20 Jonas Greitemann , Ke Liu , Lode Pollet

Three hidden-charm pentaquark $P_c$ states, $P_c(4312)$, $P_c(4440)$, and $P_c(4457)$ were revealed in the $\Lambda_b^0\to J/\psi p K^-$ process measured by LHCb using both run I and run II data. Their nature is under lively discussion, and…

高能物理 - 唯象学 · 物理学 2020-02-20 Meng-Lin Du , Vadim Baru , Feng-Kun Guo , Christoph Hanhart , Ulf-G. Meißner , José A. Oller , Qian Wang

In this paper, we study deep diagonal circulant neural networks, that is deep neural networks in which weight matrices are the product of diagonal and circulant ones. Besides making a theoretical analysis of their expressivity, we…

机器学习 · 计算机科学 2019-11-22 Alexandre Araujo , Benjamin Negrevergne , Yann Chevaleyre , Jamal Atif

We construct charmonium-like and bottomonium-like molecular interpolating currents with quantum numbers J(PC)=1(+-) in a systematic way, including both color singlet-singlet and color octet-octet structures. Using these interpolating…

高能物理 - 唯象学 · 物理学 2015-09-07 Wei Chen , T. G. Steele , Hua-Xing Chen , Shi-Lin Zhu

We investigate potential hadronic molecular states in the $D^{(*)}\bar D^{(*)}$ and $B^{(*)}\bar B^{*}$ systems using light meson exchange interactions. Our analysis focuses on coupled-channel systems with spin-parity quantum numbers…

高能物理 - 唯象学 · 物理学 2025-05-29 Nijiati Yalikun , Xiang-Kun Dong , Ulf-G. Meißner

In 2010, $\Lambda^*_{c\bar{c}}$ states were predicted as the strange number $S=-1$ partners of $N^*_{c\bar{c}}$, which are well known now as the $P_c$ states and observed experimentally by LHCb Collaboration. We analyze the decay behaviors…

高能物理 - 唯象学 · 物理学 2019-09-18 Chao-Wei Shen , Jia-Jun Wu , Bing-Song Zou

Convolutional Neural Nets, which is a powerful method of Deep Learning, is applied to classify equation of state of heavy-ion collision event generated within the UrQMD model. Event-by-event transverse momentum and azimuthal angle…

核理论 · 物理学 2020-07-23 Yu. Kvasiuk , E. Zabrodin , L. Bravina , I. Didur , M. Frolov

With the accumulation of experimental data, more and more exotic hadrons are observed. Among the interpretations of these exotic hadrons, molecular state and compact multiquark are two of the most popular pictures. However, it is still…

高能物理 - 唯象学 · 物理学 2023-05-16 Zuo-Ming Ding , Jun He , Xiang Liu

Heavy quark symmetry can help us identify the internal structure of hadrons and predict new particles. In this study, we examine the strong decay modes of the observed $\Lambda_b^0(6146)$ and $\Lambda_b^0(6152)$, assuming these two states…

高能物理 - 唯象学 · 物理学 2024-06-18 Jing-wen Feng , Cai Cheng , Yin Huang

Using machine learning, we explore the utility of various deep neural networks (NN) when applied to high harmonic generation (HHG) scenarios. First, we train the NNs to predict the time-dependent dipole and spectra of HHG emission from…

光学 · 物理学 2023-03-07 M. Lytova , M. Spanner , I. Tamblyn

One of the main issues in hadron spectroscopy is to identify the origin of threshold or near-threshold enhancement. Prior to our study, there is no straightforward way of distinguishing even the lowest channel threshold-enhancement of the…

高能物理 - 唯象学 · 物理学 2021-07-20 Denny Lane B. Sombillo , Yoichi Ikeda , Toru Sato , Atsushi Hosaka

Understanding the equation of state of dense QCD matter remains a major challenge in both nuclear physics and astrophysics. Neutron star observations from electromagnetic and gravitational wave spectra provide critical insights into the…

核理论 · 物理学 2023-03-31 Plamen G. Krastev

We propose stable exotic nuclei bound with $\bar{D}$ and $B$ mesons with respecting heavy quark symmetry. We indicate that an approximate degeneracy of $\bar{D}$($B$) and $\bar{D}^{*}$($B^{*}$) mesons plays an important role, and discuss…

高能物理 - 唯象学 · 物理学 2009-08-18 Shigehiro Yasui , Kazutaka Sudoh

In the framework of a one-boson-exchange model, we carry out a comprehensive investigation of the $\Xi_cN/\Lambda_c\Sigma/\Xi_c^{\prime}N/\Sigma_c\Lambda/\Xi_c^*N/\Sigma_c^*\Lambda/\Sigma_c\Sigma/\Sigma_c^*\Sigma$ interactions. We consider…

高能物理 - 唯象学 · 物理学 2024-10-01 Jin-Yu Huo , Li-Cheng Sheng , Rui Chen , Xiang Liu

Diffusion Monte Carlo (DMC) based on fixed-node approximation has enjoyed significant developments in the past decades and become one of the go-to methods when accurate ground state energy of molecules and materials is needed. The remaining…

化学物理 · 物理学 2023-08-07 Weiluo Ren , Weizhong Fu , Xiaojie Wu , Ji Chen