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相关论文: $\Xi^{-} d\to n\Lambda\Lambda$ and the $\Lambda\La…

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An analysis of incoherent photoproduction of $\eta$ mesons off the deuteron for photon energies from threshold to 800 MeV is presented. The dominant contribution, the $\gamma$N-$\eta$N amplitude, is described within an isobar model. Effects…

核理论 · 物理学 2009-11-07 A. Sibirtsev , S. Schneider , Ch. Elster , J. Haidenbauer , S. Krewald , J. Speth

Quark-model hyperon-nucleon and hyperon-hyperon interactions by the Kyoto-Niigata group are applied to the two-Lambda plus alpha system in a new three-cluster Faddeev formalism using two-cluster resonating-group method kernels. The model…

核理论 · 物理学 2009-11-10 Y. Fujiwara , M. Kohno , K. Miyagawa , Y. Suzuki , J. -M. Sparenberg

{\bf Background:} Deuteron induced reactions are widely used to probe nuclear structure and astrophysical information. Those (d,p) reactions may be viewed as three-body reactions and described with Faddeev techniques. {\bf Purpose:} Faddeev…

核理论 · 物理学 2018-01-03 L. Hlophe , Jin Lei , Ch. Elster , A. Nogga , F. M. Nunes

In 2019, two new structures $\Lambda_b(6146)$ and $\Lambda_b(6152)$ were observed by the LHCb Collaboration at the invariant mass spectrum of $\Lambda_b^0\pi^{+}\pi^{-}$, which aroused a hot discussion about their inner structures. The…

高能物理 - 唯象学 · 物理学 2022-06-22 Zhong-Yi Jian , Hong Qiang Zhu , Feng Yang , Qi-Hui Chen , Yin Huang , Jun He

We clarify under what circumstances the nucleon--nucleon final state interaction fixes the energy dependence of the total cross--section for the reaction $NN \to NNx$ close to production threshold, where $x$ can be any meson whose…

核理论 · 物理学 2009-10-31 C. Hanhart , K. Nakayama

The appearance of some papers dealing with the $K^- d \to \pi \Sigma n$ reaction, with some discrepancies in the results and a proposal to measure the reaction at forward $n$ angles at J-PARC justifies to retake the theoretical study with…

核理论 · 物理学 2013-10-22 Daisuke Jido , Eulogio Oset , Takayasu Sekihara

Bound-systems of $\Xi^-$--$^{14}_{}{\rm N}$ are studied via $\Xi^-$ capture at rest followed by emission of a twin single-$\Lambda$ hypernucleus in the emulsion detectors. Two events forming extremely deep $\Xi^-$ bound states were obtained…

We examine the $\Lambda$-${}^4\mathrm{He}$ ($\alpha$) and $\Xi \alpha$ momentum correlation in high-energy collisions to further elucidate the properties of the hyperon-nucleon interactions. For the $\Lambda\alpha$ system, we compare…

核理论 · 物理学 2025-01-20 Asanosuke Jinno , Yuki Kamiya , Tetsuo Hyodo , Akira Ohnishi

We present a theoretical study of $\Xi^*(1690)$ resonance in the $\Lambda_c^+ \to \Lambda K^+ \bar{K}^0$ decay, where the weak interaction part proceeds through the Cabibbo-favored process $c \to s + u\bar{d}$. Next, the intermediate two…

高能物理 - 唯象学 · 物理学 2023-07-19 Si-Wei Liu , Qing-Hua Shen , Ju-Jun Xie

The exclusive electrodisintegration of the deuteron is considered within the Bethe-Salpeter approach with a separable interaction kernel. The relativistic kernel of nucleon-nucleon interaction is obtained considering the phase shifts in the…

核理论 · 物理学 2012-12-17 S. G. Bondarenko , V. V. Burov , E. P. Rogochaya

We theoretically investigate a possibility of an $\eta ^{\prime} d$ bound state and its formation in the $\gamma d \to \eta d$ reaction. First, in the fixed center approximation to the Faddeev equations we obtain an $\eta ^{\prime} d$ bound…

核理论 · 物理学 2018-04-25 Takayasu Sekihara , Hiroyuki Fujioka , Takatsugu Ishikawa

The reaction p(@3.5\,GeV)+p -> p+\Lambda + K^+ can be studied to search for the existence of kaonic bound states like ppK^- leading to this final state. This effort has been motivated by the assumption that in p+p collisions the…

The convolution approach, widely employed to describe final state interactions in the response of many-body systems, is derived from the expression of the nuclear response in the zeroth-order ladder approximation. Within this framework, the…

核理论 · 物理学 2015-06-12 Omar Benhar

Five $\Xi^- p\to \Lambda\Lambda$ two-body capture events in $^{12}$C and $^{14}$N emulsion nuclei, in which a pair of single-$\Lambda$ hypernuclei is formed and identified by their weak decay, have been observed in $(K^-,K^+)$ emulsion…

核理论 · 物理学 2021-08-09 E. Friedman , A. Gal

Characteristics of the quasi-bound state in the $K^- pp$ system strongly depend on the model of antikaon-nucleon interaction and weakly - on the nucleon-nucleon potential. In the present paper, dynamically exact Faddeev-type calculations…

核理论 · 物理学 2024-01-22 N. V. Shevchenko

Three-body charge transfer reactions with Coulomb interaction in the final state are considered in the framework of coordinate-space integro-differential Faddeev-Hahn-type equations within two- and six-state close coupling approximations.…

原子物理 · 物理学 2009-10-31 Renat A. Sultanov , Sadhan K. Adhikari

We have calculated the effect of the inclusion of final state interactions on pion production from nuclei with incident pion beams. We find that the effect of absorption, along with geometric considerations, explains much of the enhancement…

核理论 · 物理学 2009-11-07 M. Alqadi , W. R. Gibbs

The $\Lambda N$ invariant mass spectra for the reactions $K^-d\rightarrow\pi^-\Lambda p$ and $K^-d\rightarrow\pi^0\Lambda n$ are calculated for experimental study of isospin symmetry breaking in the $\Lambda N$ scattering at low energies,…

核理论 · 物理学 2025-09-05 Shunsuke Yasunaga , Daisuke Jido , Takatsugu Ishikawa

We investigate $\Lambda\Lambda$ interaction dependence of the $\Lambda\Lambda$ intensity correlation in high-energy heavy-ion collisions. By analyzing the correlation data recently obtained by the STAR collaboration based on theoretically…

核理论 · 物理学 2015-12-29 Akira Ohnishi , Kenji Morita , Takenori Furumoto

Charmed nuclei are investigated utilizing $\Lambda_c N$ and $\Sigma_c N$ interactions that have been extrapolated from lattice QCD simulations at unphysical masses of $m_\pi = 410$--$570$ MeV to the physical point using chiral effective…

核理论 · 物理学 2020-08-26 Johann Haidenbauer , Andreas Nogga , Isaac Vidaña