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Related papers: Multi-$\bar{K}$ hypernuclei

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We extend previous relativistic mean-field (RMF) calculations of multi-$\bar K$ nuclei, using vector boson fields with SU(3) PPV coupling constants and scalar boson fields constrained phenomenologically. For a given core nucleus, the…

Nuclear Theory · Physics 2008-11-26 D. Gazda , E. Friedman , A. Gal , J. Mareš

The structure of $K^-$-condensed hypernuclei, which may be produced in the laboratory in strangeness-conserving processes, is investigated using an effective chiral Lagrangian for the kaon-baryon interaction, combined with a nonrelativistic…

Nuclear Theory · Physics 2008-11-26 Takumi Muto

The self-energy of the K^- meson in nuclear matter is calculated in a self-consistent microscopic approach, using a \bar{K}N interaction obtained from the lowest-order meson-baryon chiral Lagrangian. The effective \bar{K}N interaction in…

Nuclear Theory · Physics 2009-10-31 A. Ramos , E. Oset

Properties of multi-antikaonic nuclei (MKN), where several numbers of $K^-$ mesons are bound, are studied in the relativistic mean-field model, combined with chiral dynamics for kaonic part of the thermodynamic potential. The density…

Nuclear Theory · Physics 2009-04-28 Takumi Muto , Toshiki Maruyama , Toshitaka Tatsumi

The present status in the field of strange mesons in nuclei and neutron stars is reviewed. In particular, the $\bar K N$ interaction, that is governed by the presence of the $\Lambda(1405)$, is analyzed and the formation of the $\bar K NN$…

Nuclear Theory · Physics 2022-11-30 Laura Tolos

We study the properties of $K$ and $\bar K$ mesons in nuclear matter at finite temperature from a chiral unitary approach in coupled channels which incorporates the $s$- and p-waves of the kaon-nucleon interaction. The in-medium solution…

Nuclear Theory · Physics 2008-11-26 L. Tolos , D. Cabrera , A. Ramos

We report on self-consistent calculations of single-K^- nuclear states and multi-Kbar nuclear states in 12C, 16O, 40Ca and 208Pb within the relativistic mean-field (RMF) approach. Gradient terms motivated by the p-wave resonance Sigma(1385)…

Nuclear Theory · Physics 2013-01-11 D. Gazda , E. Friedman , A. Gal , J. Mares

The possibility of kaon condensation in high-density symmetric nuclear matter is investigated including both s- and p-wave kaon-baryon interactions within the relativistic mean-field (RMF) theory. Above a certain density, we have a…

Nuclear Theory · Physics 2010-02-17 Tomoyuki Maruyama , Takumi Muto , Toshitaka Tatsumi , Kazuo Tsushima , Anthony W. Thomas

Based on the Kaplan-Nelson Lagrangian, we investigate kaon condensation in dense neutron star matter allowing for the explicit presence of hyperons. Using various models we find that the condensate threshold is sensitive to the behavior of…

Nuclear Theory · Physics 2016-09-08 Paul J. Ellis , Roland Knorren , Madappa Prakash

We study the properties of double-$\Lambda$ hypernuclei in the relativistic mean-field theory, which has been successfully used for the description of stable and unstable nuclei. With the meson-hyperon couplings determined by the…

Nuclear Theory · Physics 2008-11-26 H. Shen , F. Yang , H. Toki

The properties of strange mesons ($K$, $\bar K$ and $\bar K^*$) in dense matter are studied using a unitary approach in coupled channels for meson-baryon scattering. The kaon-nucleon interaction incorporates $s$- and $p$-wave contributions…

Nuclear Theory · Physics 2011-03-10 L. Tolos , D. Cabrera , R. Molina , E. Oset , A. Ramos

We investigate $K^-$ and $\bar K^0$ condensation in $\beta$-equilibrated hyperonic matter within a density dependent hadron field theoretical model. In this model, baryon-baryon and (anti)kaon-baryon interactions are mediated by the…

Astrophysics · Physics 2009-11-07 Sarmistha Banik , Debades Bandyopadhyay

In this paper, we calculated the binding energy per baryon of the $\Lambda$ hypernuclei systemically, using the relativistic mean field theory (RMF) in a statistic frame. Some resemble properties are found among most of the hypernuclei…

Nuclear Theory · Physics 2009-07-30 Lan Mi-Xiang , Li Lei , Ning Ping-Zhi

Within the microscopic transport, systematic investigation of the many facets of hyperons and hypernuclei up to strangeness $S = -2$ are carried out for $^{197}$Au + $^{197}$Au and $^{40}$Ca + $^{40}$Ca at the incident energy of $3A$ GeV.…

Nuclear Theory · Physics 2022-06-28 Hui-Gan Cheng , Zhao-Qing Feng

We present a study of in-medium cross sections and (off-shell) transition rates for the most relevant binary reactions for strange pseudoscalar meson production close to threshold in heavy-ion collisions at FAIR energies. Our results rely…

High Energy Physics - Phenomenology · Physics 2015-06-19 Daniel Cabrera , Laura Tolos , Jörg Aichelin , Elena Bratkovskaya

The properties of $K$ and $\bar K$ mesons in nuclear matter at finite temperature are obtained from a chiral unitary approach in coupled channels which incorporates the $s$- and p-waves of the kaon-nucleon interaction. The in-medium…

High Energy Physics - Phenomenology · Physics 2015-05-14 L. Tolos , D. Cabrera , A. Polls , A. Ramos

Bound, strange, neutral superheavy nuclei, stable against strong decay, may exist. A model effective field theory calculation of the surface energy and density of such systems is carried out assuming vector meson couplings to conserved…

Nuclear Theory · Physics 2009-11-07 Jeff McIntire

Results for the $\pi + N \to \Lambda, \Sigma + K$ reactions in nuclear matter of Ref. nucl-th/0004011 are presented. To evaluate the in-medium modification of the reaction amplitude as a function of the baryonic density we introduce…

Nuclear Theory · Physics 2008-11-26 K. Tsushima , A. Sibirtsev , A. W. Thomas

The possibility of new short-distance physics applicable inside the cores of NS is incorporated into the equation of state generated by the quark-meson coupling model. The contribution of this new physics to the energy density is taken to…

Nuclear Theory · Physics 2022-08-22 Jesper Leong , Theo F. Motta , Anthony W. Thomas , P. A. M. Guichon

We study the equation of state of dense baryon matter within the relativistic mean-field model, and we include ${\Delta}$(1232) isobars into IUFSU model with hyperons and consider the possibility of kaon meson condensation. We find that it…

Nuclear Theory · Physics 2023-04-17 Fu Ma , Chen Wu , Wenjun Guo
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