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Related papers: Coupled channels calculation of a pion-Lambda-nucl…

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The most recent development of the quark-meson coupling (QMC) model, in which the effect of the mean scalar field in-medium on the hyperfine interaction is also included self-consistently, is used to compute the properties of finite…

Nuclear Theory · Physics 2009-06-19 Pierre A. M. Guichon , Anthony W. Thomas , Kazuo Tsushima

We study the evolution with density of the quark condensate in the nuclear medium with interacting nucleons and including the short range correlations. We work with two chiral models, the linear sigma model and the non-linear one. For the…

Nuclear Theory · Physics 2009-10-30 J. Delorme , G. Chanfray , M. Ericson

We provide a unified approach for the two-body hadronic weak decays of hyperons with $S=-1$, i.e. $\Lambda$ and $\Sigma^\pm$, in the framework of the non-relativistic constitute quark model (NRCQM). A combined analysis shows that the…

High Energy Physics - Phenomenology · Physics 2025-12-12 Ye Cao , Ming-Xiao Duan , Zhong Tao , Qiang Zhao

We investigate the structure of the Lambda(1405) resonance and Kbar N phenomenology in the perspective of chiral SU(3) dynamics. Utilizing the chiral coupled-channel approach which well describes the Kbar N scattering observable, we perform…

Nuclear Theory · Physics 2009-12-17 Tetsuo Hyodo

Using the lowest order chiral Lagrangian we study s-wave interactions of the baryon decuplet with the octet of pseudoscalar mesons. We find two bound states in the flavour SU(3) limit corresponding to the octet and decuplet representations.…

Nuclear Theory · Physics 2011-02-09 Sourav Sarkar , E. Oset , M. J. Vicente Vacas

Results for the reaction gamma p --> K+ Lambda, studied within a constituent quark model and a dynamical coupled-channel approach, are presented and compared with recent data. Issues related to the search for missing baryon resonances are…

Nuclear Theory · Physics 2016-08-16 B. Juliá-Díaz , B. Saghai , F. Tabakin , W. -T. Chiang , T. -S. H. Lee , Z. Li

We revisit the consequences of the heavy-quark spin symmetry for the possible spin partners of the $X(3872)$. We confirm that, if the $X(3872)$ were a $D\bar{D}^*$ molecular state with the quantum numbers $J^{PC}=1^{++}$, then in the strict…

High Energy Physics - Phenomenology · Physics 2016-11-04 V. Baru , E. Epelbaum , A. A. Filin , C. Hanhart , Ulf-G. Meißner , A. V. Nefediev

We investigate the three-body $DDK$ system with quantum numbers $I(J^P) = \frac{1}{2}(0^-)$ within a coupled-channel framework that incorporates both $DDK$ and $D^{*}D^{*}K$ configurations. The $D^{(*)}D^{(*)}$ interactions are described…

High Energy Physics - Phenomenology · Physics 2026-04-28 Hai-Peng Xie , Si-Yi Chen , Ning Li , Wei Chen

We review ideas and speculations concerning possible bound states or resonances coupled to the nucleon-antinucleon channel.

Nuclear Theory · Physics 2009-10-31 Jean-Marc Richard

We present our recent study on baryon-baryon ($BB$) interactions from lattice QCD with almost physical quark masses corresponding to $(m_\pi,m_K)\approx(146,525)$ MeV and large volume $(La)^4=(96a)^4\approx$ (8.1 fm)$^4$. In order to…

Non-relativistic Faddeev and Faddeev-Yakubovsky calculations were made for K^-pp, K^- ppn, K^-K^-p and K^- K^-pp kaonic nuclear clusters, where the quasi bound states were treated as bound states by employing real separable potential models…

Nuclear Theory · Physics 2014-04-18 Shuji Maeda , Yoshinori Akaishi , Toshimitsu Yamazaki

We review our recent work about the stability of strange few-body systems containing $N$'s, $\Lambda$'s, and $\Xi$'s. We make use of local central Yukawa-type Malfliet-Tjon interactions reproducing the low-energy parameters and phase shifts…

Nuclear Theory · Physics 2025-08-26 H. Garcilazo , A. Valcarce , J. Vijande

The possibility of an $nn\Lambda$ bound state is investigated in the framework of pionless effective field theory at leading order. A system of coupled integral equations are constructed in the spin-isospin basis, of which numerical…

Nuclear Theory · Physics 2015-09-09 Shung-Ichi Ando , Udit Raha , Yongseok Oh

An effective Lagrangian model in a coupled channels framework is applied to extract nucleon resonance parameters. In the K-matrix approximation, we simultaneously analyze all the available data for the transitions from pi N to five possible…

Nuclear Theory · Physics 2007-05-23 A. Waluyo , C. Bennhold , H. Haberzettl , G. Penner , U. Mosel , T. Mart

An expression of partial wave expansion of three-baryon interactions in chiral effective field theory is presented. The derivation follows the method by Hebeler et al. [Phys. Rev. C{\bf 91}, 044001 (2015)], but the final expression is more…

Nuclear Theory · Physics 2022-12-07 M. Kohno , H. Kamada , K. Miyagawa

With an effective Lagrangian approach, we analyze several NN \to NN\pi\pi channels by including various resonances with mass up to 1.72 GeV. For the channels with the pion pair of isospin zero, we confirm the dominance of N*(1440)\to…

Nuclear Theory · Physics 2015-03-13 Xu Cao , Bing-Song Zou , Hu-Shan Xu

We derive the equation of state of symmetric nuclear matter in a relativistic theory with $\sigma$ and $\omega$ exchange. We take a chiral version of this model which insures all the chiral constraints. Going beyond the mean field approach…

Nuclear Theory · Physics 2008-11-26 G. Chanfray , M. Ericson

Faddev calculations are reported for Lambda-Lambda-5H, Lambda-Lambda-5He and Lambda-Lambda-6He in terms of two Lambda hyperons plus the respective nuclear clusters, using Lambda-Lambda central potentials considered in past non-Faddeev…

Nuclear Theory · Physics 2009-11-10 I. N. Filikhin , A. Gal , V. M. Suslov

We extend our recent non-perturbative chiral SU(3) coupled channel approach to pion- and photon-induced $\eta$- and $K$-meson production off protons by including all strong and electromagnetic p-wave multipoles. We identify the p-wave…

Nuclear Theory · Physics 2009-10-31 J. Caro Ramon , N. Kaiser , S. Wetzel , W. Weise

CP-violating signals in weak $ \Xi\to \pi \Lambda$ decay require the knowledge of $\pi \Lambda$ $S$- and $P$-wave scattering phases at ${m}_{\Xi}$ center-of-mass energy. We have calculated these phases in baryon chiral perturbation theory…

High Energy Physics - Phenomenology · Physics 2016-08-25 A. N. Kamal
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