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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…

Nuclear Theory · Physics 2019-01-21 R. Shyam , K. Tsushima

Experimental evidence exists that the $\Xi$-nucleus interaction is attractive. We search for $NN\Xi$ and $NNN\Xi$ bound systems on the basis of the AV8 $NN$ potential combined with either a phenomenological Nijmegen $\Xi N$ potential or a…

Nuclear Theory · Physics 2020-03-16 E. Hiyama , K. Sasaki , T. Miyamoto , T. Doi , T. Hatsuda , Y. Yamamoto , Th. A. Rijken

The in-medium properties of a baryon-baryon interaction for the strangeness $S=-2$ sector derived within chiral effective field theory up to next-to-leading order are investigated. The considered $\Xi N$ interaction is in line with…

Nuclear Theory · Physics 2019-03-27 J. Haidenbauer , U. -G. Meißner

In this work, we propose a possible assignment of the newly observed $X(2239)$, as well as the $\eta(2225)$, as a molecular state from the interaction of a baryon $\Lambda$ and an antibaryon $\bar{\Lambda}$. With the help of effective…

High Energy Physics - Phenomenology · Physics 2020-10-16 Jun-Tao Zhu , Yi Liu , Dian-Yong Chen , Longyu Jiang , Jun He

The significance of $\Lambda\Lambda$-$\Xi$N coupling in double-$\Lambda$ hypernuclei has been studied. The Pauli suppression effect due to this coupling in $^6_{\Lambda\Lambda}$He has been found to be 0.43 MeV for the coupling strength of…

Nuclear Theory · Physics 2008-11-26 Khin Swe Myint , S. Shinmura , Y. Akaishi

Recently, the LHCb Collaboration has reported two strange hidden-charm pentaquark states named $P^\Lambda_{\psi s}(4459)$ and $P^\Lambda_{\psi s}(4338)$ in the $ J/\psi \Lambda$ invariant mass spectra of decays $\Xi_b^-$$\to$$ J/\psi…

High Energy Physics - Phenomenology · Physics 2023-03-08 Jun-Tao Zhu , Shu-Yi Kong , Jun He

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-…

Nuclear Theory · Physics 2010-05-13 V. K. Magas , E. Oset , A. Ramos

We make a thorough study of the process of three body kaon absorption in nuclei, in connection with a recent FINUDA experiment which claims the existence of a deeply bound kaonic state from the observation of a peak in the Lambda d…

Nuclear Theory · Physics 2008-11-26 V. K. Magas , E. Oset , A. Ramos

The neutron-rich carbon isotopes 19,17C have been investigated via proton inelastic scattering on a liquid hydrogen target at 70 MeV/nucleon. The invariant mass method in inverse kinematics was employed to reconstruct the energy spectrum,…

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…

Nuclear Theory · Physics 2010-11-02 V. K. Magas , E. Oset , A. Ramos

The LHCb Collaboration recently reported the observation of a new excited bottom baryon $\Xi_b(6227)^0$ and announced an improvement in the measurements related to the previously observed $\Xi_b(6227)^-$ state. We conduct an analysis for…

High Energy Physics - Phenomenology · Physics 2021-04-14 K. Azizi , Y. Sarac , H. Sundu

Neutron and proton driplines of single-$\Lambda$ and double-$\Lambda$ hypernuclei, $\Xi^{-}$ hypernuclei as well as normal nuclei are studied within a relativistic mean field approach using an extended form of the FSU Gold Lagrangian…

Nuclear Theory · Physics 2013-02-12 Bipasha Bhowmick , Abhijit Bhattacharyya , G. Gangopadhyay

The study of hypernuclei in the quark mean-field model are extended from single-$\Lambda$ hypernuclei to double-$\Lambda$ hypernuclei as well as $\Xi$ hypernuclei (double strangeness nuclei), with a broken SU(3) symmetry for the quark…

Nuclear Theory · Physics 2014-05-07 J. N. Hu , A. Li , H. Shen , H. Toki

The binding energies of neutron rich strangeness $S=-1$ hypernuclei are estimated in the chiral soliton approach using the bound state rigid oscillator version of the SU(3) quantization model. Additional binding of strange hypernuclei in…

Nuclear Theory · Physics 2015-06-04 Vladimir B. Kopeliovich

We present a new theory describing the variation of electron capture and bound-state $\beta$-decays in atomic ions and (non) local thermodynamic equilibrium ((N)LTE) plasmas. We adopt the Takahashi-Yokoi nuclear model with added corrections…

Plasma Physics · Physics 2025-10-08 Bharat Mishra , Angelo Pidatella , Simone Taioli , Stefano Simonucci , David Mascali

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…

Nuclear Theory · Physics 2016-08-19 H. Garcilazo , A. Valcarce , J. Vijande

We critically revise the recent claims of narrow deeply bound kaonic states and show that at present there is no convincing experimental evidence for their existence. In particular, we discuss in details the claim of K- pp deeply bound…

Nuclear Theory · Physics 2007-05-23 V. K. Magas , E. Oset , A. Ramos , H. Toki

We critically discuss the theoretical developments that led to predictions of very deeply bound kaon states and then revise the data of the KEK experiment from where claims for evidence of deeply bound kaon atoms in nuclei were made. We…

Nuclear Theory · Physics 2007-05-23 E. Oset , H. Toki

We investigate the hypernuclear cluster states of $_\Lambda^{12}\mathrm{B}$ using a neural-network-driven microscopic model. We extend the Control Neural Networks (Ctrl.NN) method and systematically calculate the positive-parity spectrum of…