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Related papers: Production of multi-strangeness hypernuclei and th…

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We study the formation of large hyper-fragments in relativistic heavy-ion collisions within two transport models, DCM and UrQMD. Our goal is to explore a new mechanism for the formation of strange nuclear systems via capture of hyperons by…

Nuclear Theory · Physics 2015-05-28 A. S. Botvina , K. K. Gudima , J. Steinheimer , M. Bleicher , I. N. Mishustin

We review the progress in understanding the strange particle yields in nuclear collisions and their role in signalling quark-gluon plasma formation. We report on new insights into the formation mechanisms of strange particles during…

Nuclear Theory · Physics 2016-11-03 Josef Sollfrank , Ulrich Heinz

The theory of Quantum Chromo Dynamics (QCD) reproduces the strong interaction at distances much shorter than the size of the nucleon. At larger distance scales, the generation of hadron masses and confinement cannot yet be derived from…

High Energy Physics - Experiment · Physics 2019-08-13 J. G. Messchendorp

We discuss strangeness production in heavy-ion collisions in the broad energy range --- from SIS energies through AGS-SPS-RHIC and upto LHC energies. On several examples we demonstrate how the strange particle production can reveal…

Nuclear Theory · Physics 2015-02-20 E. E. Kolomeitsev , I. Melo , B. Tomasik , D. N. Voskresensky

The weak production of Lambdas in nucleon-nucleon scattering is studied in a meson-exchange framework. The weak transition operator for the $NN \to N \Lambda$ reaction is identical to a previously developed weak strangeness-changing…

Nuclear Theory · Physics 2009-10-31 A. Parreño , A. Ramos , N. G. Kelkar , C. Bennhold

The cross sections of the reaction $pp \to N K Y$ for $K^+$ or $K^0$ mesons and $\Lambda$ or $\Sigma$ hyperons are calculated within the boson exchange model including pion and kaon exchange diagrams. We analyze the dependence of the…

Nuclear Theory · Physics 2009-09-25 A. Sibirtsev , W. Cassing

The properties of strange hadronic matter are studied in the context of the modified quark-meson coupling model using two substantially different sets of hyperon-hyperon ($YY$) interactions. The first set is based on the Nijmegen hard core…

Nuclear Theory · Physics 2016-09-08 I. Zakout , H. R. Jaqaman , H. Steocker , W. Greiner

We study the non-mesonic weak decay of the doubly-strange hypernucleus $^{\Lambda\Lambda}_6$He within a model which considers the exchange of pseudoscalar and vector mesons. Special attention is paid into quantifying the strong interaction…

Nuclear Theory · Physics 2018-09-12 Jordi Maneu Victoria , Assumpta Parreño , Àngels Ramos

We present preliminary STAR results on measurements of multi-strange particles $\Xi$, $\Omega$ and their anti-particles from Au+Au and Cu+Cu at $\sqrt{s_{NN}}=62.4$ GeV collisions. In order to better understand the role of strangeness…

Nuclear Experiment · Physics 2010-09-22 G. M. S. Vasconcelos

The question of the competition between $\Lambda$ and $\Xi^{0,-}$ in the ground-state of multi-strange hypernuclei is addressed within a non-relativistic density functional approach, partially constrained by ab-initio calculations and…

Nuclear Theory · Physics 2017-11-29 J. Margueron , E. Khan , F. Gulminelli

The dynamics of exotic hypernuclei in heavy-ion collisions has been investigated thoroughly with a microscopic transport model. All possible channels on hyperon ($\Lambda$, $\Sigma$ and $\Xi$) production near threshold energies are…

Nuclear Theory · Physics 2020-10-14 Zhao-Qing Feng

The formation of hypernuclei in hadron-induced reactions and in heavy-ion collisions within a combination of a covariant transport model and a statistical fragmentation approach is investigated. We study the applicability and limitations of…

Nuclear Theory · Physics 2015-05-13 T. Gaitanos , H. Lenske , U. Mosel

Pioneering experiments on production of hypernuclei can be performed with nuclotron beams on fixed targets, and at the future NICA facility. The peripheral collisions of relativistic ions are very promising for searching mutli-strange and…

Nuclear Theory · Physics 2013-05-24 A. S. Botvina

Using a multiphase transport model, we study the production of multistrange baryons from the hadronic matter formed in relativistic heavy ion collisions. The mechanism we introduce is the strangeness-exchange reactions between antikaons and…

Nuclear Theory · Physics 2015-06-26 Subrata Pal , C. M. Ko , Zi-wei Lin

A phenomenological model for the hyperon-nucleon interactions is constructed by using the quark cluster model approach to the short-distance baryon-baryon interactions. The model contains the SU(3) symmetric meson exchange interaction at…

High Energy Physics - Phenomenology · Physics 2009-09-25 Ken-ichiro Ogawa , Sachiko Takeuchi , Makoto Oka

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…

Nuclear Theory · Physics 2008-11-26 C. J. Batty , E. Friedman , A. Gal

Experiments on strangeness production in nucleus-nucleus collisions at SIS energies address fundamental aspects of modern nuclear physics: the determination of the nuclear equation-of-state at high baryon densities and the properties of…

Nuclear Experiment · Physics 2010-12-06 P. Senger

Artificial intelligence (AI) is transforming not only our daily experiences but also the technological development landscape and scientific research. In this study, we pioneered the application of AI in double-strangeness hypernuclear…

We investigate the associated strangeness Lambda K+ and Sigma0 K+ productions in proton-proton collisions within an effective Lagrangian model. The initial interaction between the two nucleons is modeled by the exchange of pi, rho, omega,…

High Energy Physics - Phenomenology · Physics 2007-05-23 Radhey Shyam

The Ultra-relativistic Quantum Molecular Dynamics model is employed to simulate $\pi^-+\mathrm{C}$ and $\pi^-+\mathrm{W}$ collisions at p$_\mathrm{lab}=1.7$ GeV motivated by the recent HADES results. By comparing the proton and $\Lambda$…