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相关论文: $\Xi$-nuclear constraints from $\Xi^-$ emulsion ca…

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We investigate within a quark-meson coupling (QMC) model, the structure of the bound $\Xi^-$ hypernucleus $^{15}{\!\!\!_{\Xi^-}}$C ($^{14}$N + $\Xi^-$), which has been observed in a recent analysis of the KEK-E373 experiment. In the QMC…

核理论 · 物理学 2019-01-21 R. Shyam , K. Tsushima

The KNNN bound states recently discovered at KEK are studied. It is shown that the Lambda(1405) and Sigma(1385) resonant states coupled to the KN system may generate an attraction strong enough to form such bound states.

核理论 · 物理学 2007-05-23 S. Wycech , A. M. Green

Hyper-Kamiokande (Hyper-K) is a next-generation long baseline neutrino experiment. One of its primary physics goals is to measure neutrino oscillation parameters precisely, including the Dirac CP violating phase. As conventional $\nu_{\mu}$…

高能物理 - 实验 · 物理学 2025-05-19 T. Mondal , N. W. Prouse , P. de Perio , M. Hartz , D. Bose

It will be shown that the peaks in the (Lambda p) and (Lambda d) invariant mass distributions, observed in recent FINUDA experiments and claimed to be signals of deeply bound kaonic states, are naturally explained in terms of K- absorption…

核理论 · 物理学 2010-11-02 V. K. Magas , E. Oset , A. Ramos

By using local central Yukawa-type interactions that reproduce the low-energy parameters of the latest updates of the Nijmegen ESC08c potentials we show that the $N\Xi$, $NN\Xi$, $N\Xi\Xi$ and $NN\Xi\Xi$ systems with maximal isospin are…

核理论 · 物理学 2016-08-19 H. Garcilazo , A. Valcarce , J. Vijande

$K^-$ mesons offer a unique setting where mesic atoms have been studied both experimentally and theoretically, thereby placing constraints on the possible existence and properties of meson-nuclear quasibound states. Here we review progress…

The strongly absorptive optical potentials $V_{{\rm opt}}$ which have been deduced from the strong-interaction level shifts and widths in X-ray spectra of $K^-$ and $\bar p$ atoms produce effective repulsion leading to substantial…

核理论 · 物理学 2009-10-31 E. Friedman , A. Gal

The capture of K$^-$ mesons on nucleons bound in nuclei offer a chance to study the $\Sigma \pi$ pairs below the kinematic threshold of the $\bar{\mathrm{K}}$N systems. Various hyperon-pion charged combination are presently under…

核实验 · 物理学 2017-11-22 Raffaele Del Grande , Kristian Piscicchia , Slawomir Wycech

A double-$\Lambda$ hypernucleus, ${}_{\Lambda\Lambda}\mathrm{Be}$, was observed by the J-PARC E07 collaboration in nuclear emulsions tagged by the $(K^{-},K^{+})$ reaction. This event was interpreted as a production and decay of $…

We calculate the nuclear suppression for $J/\Psi$ and $\Psi'$ production within a coupled channel approach in the subspace of the $J/\Psi$ and $\Psi'$ states. We are able to explain, why (i) the $J/\Psi$ and $\Psi'$ show the same…

高能物理 - 唯象学 · 物理学 2009-10-28 Joerg Huefner , Boris Kopeliovich

We analyze the peaks in the (Lambda p) and (Lambda d) invariant mass distributions, observed in recent FINUDA experiments and claimed to be signals of deeply bound kaonic states, and find them to be naturally explained in terms of K-…

核理论 · 物理学 2010-05-13 V. K. Magas , E. Oset , A. Ramos

A self consistent scheme for constructing K^- nuclear optical potentials from subthreshold in-medium Kbar-N s-wave scattering amplitudes is presented and applied to analysis of kaonic atoms data and to calculations of K^- quasibound nuclear…

核理论 · 物理学 2013-05-29 A. Cieplý , E. Friedman , A. Gal , D. Gazda , J. Mareš

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

Lambda*=Lambda(1405) plays an essential role in forming kaonic nuclear clusters (KNC). The simplest KNC, K-pp, has the structure Lambda*p=(K-p){I=0}p, where a real kaon migrates between two nucleons, mediating super-strong Lambda*-p$…

核理论 · 物理学 2019-04-09 Y. Akaishi , T. Yamazaki

Experiments with $\Xi^-$ atoms are proposed in order to study the nuclear interaction of $\Xi$ hyperons. The production of $\Xi^-$ in the ($K^{-}$, $K^{+}$) reaction, the $\Xi^-$ stopping in matter, and its atomic cascade are incorporated…

核理论 · 物理学 2008-11-26 C. J. Batty , E. Friedman , A. Gal

The $K^-$ optical potential in the nuclear medium is evaluated self consistently from a free-space $K^-N$ $t$ matrix constructed within a coupled-channel chiral approach to the low-energy $\bar K N$ data. The chiral-model parameters are…

核理论 · 物理学 2008-11-26 A. Cieply , E. Friedman , A. Gal , J. Mares

In this work, the molecular states from the \bar{K}^{*}\Sigma interaction are studied in a quasipotential Bethe-Salpeter equation approach with the one-boson-exchange potentials. We consider the exchanges of vector (\rho,\omega and \phi)…

高能物理 - 唯象学 · 物理学 2018-08-09 Yin Huang , Rong Wang , Jun He , Ju-Jun Xie , Lisheng Geng