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相关论文: Dynamically generated hadronic states in the $\bar…

200 篇论文

Starting from the lowest order chiral Lagrangian for the interaction of the baryon decuplet with the octet of pseudoscalar mesons we find an attractive interaction in the $\Delta K$ channel with L=0 and I=1, while the interaction is…

核理论 · 物理学 2011-02-09 Sourav Sarkar , E. Oset , M. J. Vicente Vacas

The proper treatment of hadronic resonances plays an important role in many aspects of heavy ion collisions. This is expected to be the case also for hadronization, due to the large degeneracies of excited states, and the abundant…

核理论 · 物理学 2023-08-31 Rainer J. Fries , Jacob Purcell , Michael Kordell , Che-Ming Ko

Some of the non hadronic interactions, such as the \eta resonance formation in the \gamma \gamma interactions and the muon pair production in the e\gamma interactions, are identified as possible source interactions for generating high…

高能物理 - 唯象学 · 物理学 2017-08-23 H. Athar , Guey-Lin Lin

Recently the HAL QCD Collaboration reported the $\Omega-\Omega$ and $N-\Omega$ interaction potentials by the lattice QCD simulations. Based on these results, $N\Omega$ ($^5S_2$) and $\Omega\Omega$ ($^1S_0$) bound states were predicted with…

高能物理 - 唯象学 · 物理学 2020-12-02 S. Zhang , Y. G. Ma

Properties of multi-antikaonic nuclei (MKN), where several numbers of $K^-$ mesons are bound, are studied in the relativistic mean-field model, combined with chiral dynamics for kaonic part of the thermodynamic potential. The density…

核理论 · 物理学 2009-04-28 Takumi Muto , Toshiki Maruyama , Toshitaka Tatsumi

A model of mobile, charged ion channels in a fluid membrane is studied. The channels may switch between an open and a closed state according to a simple two-state kinetics with constant rates. The effective electrophoretic charge and the…

软凝聚态物质 · 物理学 2009-11-07 Stephan C. Kramer , Reiner Kree

Energies and wave functions of edge states in twodimensional electron gas are evaluated for a finite step potential barrier model. The spectrum, instead of smooth bending of Landau branches in the vicinity of the barrier acquires a steplike…

凝聚态物理 · 物理学 2015-06-25 I. Bartos , B. Rosenstein

We calculate the effective potentials of the octet baryon and heavy meson systems using the chiral effective field theory up to the next-to-leading order. We consider the contact terms, one-pseudoscalar-meson and two-pseudoscalar-meson…

高能物理 - 唯象学 · 物理学 2024-12-12 Bo-Lin Huang , Bo Wang , Shi-Lin Zhu

We investigate hadron formation in deep inelastic lepton scattering on N, Kr and Xe nuclei in the kinematic regime of the HERMES experiment. The elementary electron-nucleon interaction is described within the event generator PYTHIA while a…

核理论 · 物理学 2009-11-10 T. Falter , W. Cassing , K. Gallmeister , U. Mosel

It is shown, that fitting parameters of a $\bar{K}N$ interaction model to different sets of experimental data can lead to physical conclusions which might provide a deeper insight into the physics of this multichannel system. The available…

核理论 · 物理学 2020-09-15 János Révai

Elastic piN scattering and the world data of the family of reactions pi^- p --> eta n, K^0 Lambda$, K^0 Sigma^0, K^+ Sigma^-, and pi^+ p --> K^+ Sigma^+ are described simultaneously in an analytic, unitary, coupled-channel approach. SU(3)…

We present updated and extended results for the $\eta$- and $\eta'$-nucleus bound state energies, obtained by solving the Schr\"{o}dinger and Klein-Gordon equations with complex optical potentials, for a wide range of nuclei. The $\eta$ and…

核理论 · 物理学 2024-02-26 J. J Cobos-Martinez , Kazuo Tsushima

In this study, we explore the interactions between mesons and baryons in the open heavy sectors to identify potential triple-heavy molecular pentaquarks. We derive the meson-baryon interaction potentials using the vector meson exchange…

高能物理 - 唯象学 · 物理学 2024-10-17 Zhong-Yu Wang , Chu-Wen Xiao , Zhi-Feng Sun , Xiang Liu

In this talk I present recent developments in chiral dynamics of hadrons and hadrons in a medium addressing the following points: interaction of the octet of pseudoscalar mesons with the octet of baryons of the nucleon, showing recent…

核理论 · 物理学 2008-11-26 E. Oset , S. Sarkar , M. J. Vicente Vacas , M. Kaskulov , L. Roca , V. K. Magas , A. Ramos , H. Toki

The present status of the Lambda(1405) structure study in chiral dynamics is briefly reviewed. It turns out that the Lambda(1405) resonance can be described by hadronic dynamics. The idea of the hadronic molecular state is extended to…

核理论 · 物理学 2015-05-27 Daisuke Jido

In this work we study several $\Xi_c$ and $\Xi_b$ states dynamically generated from the meson-baryon interaction in coupled channels, using an extension of the local hidden gauge approach in the Bethe-Salpeter equation. These molecular…

高能物理 - 唯象学 · 物理学 2019-03-27 Q. X. Yu , R. Pavao , V. R. Debastiani , E. Oset

The isoscalar $\eta$ and $\eta'$ mesons are special in QCD, being linked both to chiral symmetry and to non-perturbative glue associated with the axial anomaly. The properties of these mesons in medium are sensitive to how these dynamics…

高能物理 - 唯象学 · 物理学 2022-11-15 Steven D. Bass , Volker Metag , Pawel Moskal

Some recent developments in chiral dynamics of hadrons and hadrons in a medium are presented. Unitary schemes based on chiral Lagrangians describe some hadronic states as being dynamically generated resonances. We discuss how standard…

核理论 · 物理学 2016-09-08 M. J. Vicente Vacas

A new improved study of K^- - proton interactions near threshold is performed using coupled-channels dynamics based on the next-to-leading order chiral SU(3) meson-baryon effective Lagrangian. Accurate constraints are now provided by new…

核理论 · 物理学 2015-05-30 Yoichi Ikeda , Tetsuo Hyodo , Wolfram Weise

The interaction of spatially extended heavy hadrons is investigated in the framework of lattice QCD with dynamical quarks. In addition to the baryon-baryon potential results for the baryon-antibaryon and for the meson-meson system are…

高能物理 - 格点 · 物理学 2007-05-23 H. Markum , K. Rabitsch , W. Sakuler