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相关论文: $\Sigma_c\Sigma_c$ interactions in chiral effectiv…

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The aim of this habilitation thesis is to present recent results, obtained during the period 2012-2017, related to interaction effects in condensed matter physics systems such as planar Dirac liquids, e.g., graphene and graphene-like…

介观与纳米尺度物理 · 物理学 2018-10-22 S. Teber

The $\Lambda_c p$ momentum correlation functions are investigated using $\Lambda_c N$ interactions derived within the covariant chiral effective field theory. Our analysis reveals that the interaction is weakly attractive in the…

高能物理 - 唯象学 · 物理学 2026-04-02 Ru-You Zheng , Zhi-Wei Liu , Li-Sheng Geng

We apply the general principles of effective field theories to the construction of effective interactions suitable for few- and many-body calculations in a no-core shell model framework. We calculate the spectrum of systems with three and…

其他凝聚态物理 · 物理学 2008-11-26 I. Stetcu , B. R. Barrett , U. van Kolck , J. P. Vary

We discuss a relativistic chiral theory of nuclear matter with $\sigma$ and $\omega$ exchange using a formulation of the $\sigma$ model in which all the chiral constraints are automatically fulfilled. We establish a relation between the…

核理论 · 物理学 2008-11-26 M. Ericson , G. Chanfray

The challenges with the molecular model of the multiquark systems are the identification of the hadronic molecules and the interaction between two color neutral hadrons. We study the di-hadronic molecular systems with proposed interaction…

高能物理 - 唯象学 · 物理学 2021-02-08 D. P. Rathaud , Ajay Kumar Rai

A density-dependent effective potential for the baryon-baryon interaction in the presence of the (hyper)nuclear medium is constructed, based on the leading (irreducible) three-baryon forces derived within SU(3) chiral effective field…

Using the one-boson-exchange model, we investigate the $\Lambda_c\bar{D}_s^*$, $\Sigma_c\bar{D}_s^*$, $\Sigma_c^*\bar{D}_s^*$, $\Xi_c\bar{D}^*$, $\Xi_c'\bar{D}^*$, and $\Xi_c^*\bar{D}^*$ interactions by considering the one-eta-exchange…

高能物理 - 唯象学 · 物理学 2017-09-11 Rui Chen , Jun He , Xiang Liu

We examine the meson-baryon interaction in the strangeness S=-1 sector using an effective chiral Lagrangian. Potentials are derived from this Lagrangian and used in a coupled-channel calculation of the low energy observables. The potentials…

核理论 · 物理学 2009-10-28 N. Kaiser , P. B. Siegel , W. Weise

The $\eta$-Baryon interactions at low energies are studied in a model based in effective chiral Lagragians that take into account baryons of spin 1/2 and spin 3/2 in the intermediate states. The interacting baryons to be considered in this…

高能物理 - 唯象学 · 物理学 2023-04-28 Marcelo G. L. Nogueira-Santos , Celso C. Barros

The effects of the $\Sigma_c\bar{D}^*$-$\Lambda_{c}(2595)\bar{D}$ coupled-channel dynamics and various one-boson-exchange (OBE) forces for the LHCb pentaquark states, $P_c(4440)$ and $P_c(4457)$, are reinvestigated. Both the pion and…

高能物理 - 唯象学 · 物理学 2021-12-01 Nijiati Yalikun , Yong-Hui Lin , Feng-Kun Guo , Yuki Kamiya , Bing-Song Zou

In this paper, we discuss the behavior of conformal field theories interacting at a single point. The edge states of the quantum Hall effect (QHE) system give rise to a particular representation of a chiral Kac-Moody current algebra. We…

高能物理 - 理论 · 物理学 2009-10-31 A. P. Balachandran , G. Bimonte , T. R. Govindarajan , K. S. Gupta , V. John , S. Vaidya

With the intent of exploring how the interplay between boundary effects and chiral symmetry breaking may alter the thermodynamical behavior of a system of strongly interacting fermions, we study the Casimir effect for the setup of two…

高能物理 - 理论 · 物理学 2015-06-12 Antonino Flachi

The chiral symmetry of QCD requires energy-dependent pionic strong interactions at low energies. This constraint, however, is not fulfilled by the usual Breit--Wigner parameterization of pionic resonances, leading to masses larger than the…

高能物理 - 唯象学 · 物理学 2019-06-12 Meng-Lin Du , Feng-Kun Guo , Ulf-G. Meißner

We report on a theoretical study of the pp->p Lambda K+ and pp->p Sigma0 K+ reactions near threshold using a chiral dynamical approach. The production process is described by single-pion and single-kaon exchange. The final state…

核理论 · 物理学 2011-09-15 Ju-Jun Xie , Hua-Xing Chen , E. Oset

Chiral symmetry and its spontaneous breaking play an important role both in the light hadron and heavy hadron systems. The chiral perturbation theory ($\chi$PT) is the low energy effective field theory of the QCD. In this work, we shall…

高能物理 - 唯象学 · 物理学 2023-05-09 Lu Meng , Bo Wang , Guang-Juan Wang , Shi-Lin Zhu

Very recently, two hidden-charmed resonances $P_c(4380)$ and $P_c(4450)$ consistent with pentaquark states were observed at the LHCb detector. The two $P_c$ states locate just below the $\bar{D}\Sigma^*_c$ and $\bar{D}^*\Sigma_c$ thresholds…

高能物理 - 唯象学 · 物理学 2016-01-07 Jun He

Chiral perturbation theory, the low energy effective theory of the strong interactions for the light pseudoscalar degrees of freedom, is based on effective Lagrangian techniques and is an expansion in the powers of the external momenta and…

高能物理 - 唯象学 · 物理学 2007-05-23 B. Ananthanarayan , P. Büttiker

We have studied the residual interaction effects theoretically on the deeply bound pionic states in Pb and Sn isotopes. We need to evaluate the residual interaction effects carefully in order to deduce the nuclear medium effects for pion…

核理论 · 物理学 2009-11-11 N. Nose-Togawa , H. Nagahiro , S. Hirenzaki , K. Kume

The processes involving $K^{-}p, KN, \Sigma\pi, \Lambda\pi,\Sigma\eta, \Lambda\eta$ coupled channels are studied in the nonperturbative chiral approach. An effective potential is constructed using a chiral meson-baryon Lagrangian at lowest…

高能物理 - 唯象学 · 物理学 2016-09-06 B. Krippa

Massive higher spin fields are notoriously difficult to introduce interactions when they are described by symmetric (spin)-tensors. An alternative approach is to use chiral description that does not have unphysical longitudinal modes. For…

高能物理 - 理论 · 物理学 2025-01-28 William Delplanque , Evgeny Skvortsov