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New calculations of the quasi-bound state positions in $K^{-}K^{-}pp$ kaonic nuclear cluster are performed using non-relativistic four-body Faddeev-type equations in AGS form. The corresponding separable approximation for the integral…

Nuclear Theory · Physics 2016-12-23 Sajjad Marri , Seyed Zafarollah Kalantari , Jafar Esmaili

Comments are made on Akaishi, Myint and Yamazaki's interpretation of antikaonic quasibound nuclear states as generalized Kapur-Peierls decaying states [arXiv:0805.4382]. We argue that these `intrinsic decaying states' have little to do with…

Nuclear Theory · Physics 2008-09-03 Ales Cieply , Avraham Gal

In this work the low energy kaon-hyperon interaction is studied with nonlinear chiral invariant Lagragians considering kaons, hyperons, and the corresponding resonances in the intermediate states. We show the basic formalism to calculate…

High Energy Physics - Phenomenology · Physics 2018-08-16 Marcelo G. L. Nogueira Santos , Celso C. Barros

A general algorithm for handling the energy dependence of meson-nucleon amplitudes in the nuclear medium has been recently applied to antikaons and to eta mesons. Here we test this approach on $\pi N$ amplitudes in pionic atoms where direct…

Nuclear Theory · Physics 2015-03-11 E. Friedman , A. Gal

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…

High Energy Physics - Phenomenology · Physics 2023-05-09 Lu Meng , Bo Wang , Guang-Juan Wang , Shi-Lin Zhu

A survey is given on selected topics concerning the role of spontaneous chiral symmetry breaking in low-energy QCD, and its dynamical implications for nuclear systems. This includes aspects of chiral thermodynamics (the temperature and…

Nuclear Theory · Physics 2014-11-18 Wolfram Weise

A general algorithm for handling the energy dependence of hadron-nucleon amplitudes in the nuclear medium, consistently with their density dependence, has been recently applied to antikaons, eta mesons and pions interacting with nuclei.…

Nuclear Theory · Physics 2015-09-22 E. Friedman , A. Gal , B. Loiseau , S. Wycech

We overview the recent progress in the investigation of the antikaon dynamics with single nucleon and with few-body nuclei, based on chiral SU(3) symmetry. We first show how the Lambda(1405) resonance emerges from the coupled-channel Kbar…

Nuclear Theory · Physics 2015-06-11 Tetsuo Hyodo

In these proceedings, we discuss the current status of nuclear bound state predictions based on chiral nuclear interactions. Results of ordinary $s$- and $p$-shell nuclei and light hypernuclei are shown.

Nuclear Theory · Physics 2007-12-20 A. Nogga

New concept of intermediate- and short-range nuclear force proposed by the authors a few years ago is discussed briefly. The general concept is based on an assumption on generation of the dressed dibaryon in intermediate state in $NN$…

Nuclear Theory · Physics 2016-09-08 V. I. Kukulin , V. N. Pomerantsev

These lecture notes address a central problem of theoretical nuclear physics: how to establish a relationship between low-energy, non-perturbative QCD and nuclear phenomenology which includes both nuclear matter and finite nuclei. We…

Nuclear Theory · Physics 2017-01-25 Dario Vretenar , Wolfram Weise

The systematics of deuteronlike two-meson bound states, {\it deusons}, is discussed. Previous arguments that many of the present non-$q\bar q$ states are such states are elaborated including, in particular, the tensor potential. For…

High Energy Physics - Phenomenology · Physics 2008-11-26 Nils A. Törnqvist

We study the interactions of the $\Sigma_c\Sigma_c$ system in the framework of chiral effective theory. We consider the contact, one-pion and two-pion exchange interactions and bridge the low energy constants of the $\Sigma_c\Sigma_c$…

High Energy Physics - Phenomenology · Physics 2022-04-29 Kan Chen , Bo-Lin Huang , Bo Wang , Shi-Lin Zhu

We study theoretically the structure of double pionic atoms, in which two negatively charged pions ($\pi^-$) are bound in the atomic orbits. The double pionic atom is considered to be an interesting system from the point of view of the…

Starting with the general principles of global and local symmetries, the effective pion-nucleon lagrangian, essentially non-linear in pion field, to describe the non-strange hadrons low-energy electro-weak transitions is developed. We…

Nuclear Theory · Physics 2016-09-15 Gevorg G. Bunatian

To obtain an understanding of the structure and reactions of nuclear systems from first principles has been a long-standing goal of nuclear physics. In this respect, few- and many-body systems provide a unique laboratory for studying…

Nuclear Theory · Physics 2020-02-27 Maria Piarulli , Ingo Tews

The properties of kaons and antikaons and their modification in isospin asymmetric nuclear matter are investigated using a chiral SU(3) model. These isospin dependent medium effects are important for asymmetric heavy ion collision…

Nuclear Theory · Physics 2008-11-26 A. Mishra , S. Schramm , W. Greiner

Baryon-baryon bound states in the strangeness S=-2, S=-3, and S=-4 sectors are considered. In particular, the dependence of the corresponding binding energies on the quark mass (or equivalently the pion mass) is explored in the framework of…

Nuclear Theory · Physics 2016-08-14 J. Haidenbauer , U. -G. Meißner

In this proceeding we summarize results for baryonic contact terms derived within SU(3) chiral effective field theory. The four-baryon contact terms, necessary for the description of the hyperon-nucleon interaction, include SU(3) symmetric…

Nuclear Theory · Physics 2013-12-17 Stefan Petschauer