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相关论文: Experimental status of deeply bound kaonic states …

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We study the (K-,p) reaction on C12 with a kaon beam of 1 GeV momentum, paying a special attention to the region of emitted protons having kinetic energy above 600 MeV, which was used to claim a deep kaon nucleus optical potential [1]. The…

核理论 · 物理学 2014-11-20 V. K. Magas , J. Yamagata-Sekihara , S. Hirenzaki , E. Oset , A. Ramos

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…

核理论 · 物理学 2007-05-23 E. Oset , H. Toki

We perform a theoretical study of the spectrum of protons with kinetic energies of around 600 MeV, emitted following the interaction of 1 GeV/c kaons with nuclei. A recent experimental analysis of this (K-,p) reaction on 12C, based on the…

核理论 · 物理学 2015-05-14 A. Ramos , V. K. Magas , J. Yamagata-Sekihara , S. Hirenzaki , E. Oset

We make a critical analysis on the theoretical calculations that lead to predictions of deeply bound kaonic states in nuclei. The model set-up, after dropping several important processes and channels, leads unavoidably to an unrealistic…

核理论 · 物理学 2009-11-11 E. Oset , H. Toki

The strength of the low energy K^- nucleus real potential has recently received renewed attention in view of experimental evidence for the possible existence of strongly bound K^- states. Previous fits to kaonic atom data led to either…

核理论 · 物理学 2008-11-26 N. Barnea , E. Friedman

We study the (K-,p) reaction on nuclei with a 1 GeV/c momentum kaon beam, paying a special attention at the region of emitted protons having kinetic energy above 600 MeV, which was used to claim a deeply attractive kaon nucleus optical…

核理论 · 物理学 2015-03-13 V. K. Magas , J. Yamagata-Sekihara , S. Hirenzaki , E. Oset , A. Ramos

Using a microscopic antikaon-nucleus optical potential recently developed by Ramos and Oset (nucl-th/9906016, in print in Nuclear Physics A) from a chiral model, we calculate strong interaction shifts and widths for $K^-$ atoms. This purely…

核理论 · 物理学 2016-09-08 A. Baca , C. Garcia-Recio , J. Nieves

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…

核理论 · 物理学 2007-05-23 V. K. Magas , E. Oset , A. Ramos , H. Toki

We performed self-consistent calculations of $K^-$-nuclear quasi-bound states using a single-nucleon $K^-$ optical potential derived from chiral meson-baryon coupled-channel interaction models, supplemented by a phenomenological $K^-$…

核理论 · 物理学 2017-07-26 Jaroslava Hrtankova , Jiri Mares

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…

核理论 · 物理学 2008-11-26 V. K. Magas , E. Oset , A. Ramos

The study of deeply bound kaon states is usually carried out or proposed using $K^-$ or $\pi^+$ beams with fixed nuclear target or proton proton interactions or, more recently, heavy ion collisions. The extension of the measurements to…

核实验 · 物理学 2012-12-11 S. Marcello , F. De Mori , A. Filippi

We study the kaonic atom and kaonic nucleus formation by the in-flight ($K^-, p$) reactions for C, O, Si and Ca target cases theoretically. Deeply bound kaonic atoms were predicted to exist as quasi-stable states and were expected to be…

核理论 · 物理学 2009-11-11 Junko Yamagata , Hideko Nagahiro , Yuko Okumura , Satoru Hirenzaki

This presentation reviews recent developments in the understanding of low-energy pion- and kaon-nucleon interactions as they relate to deeply bound pionic atoms and possible antikaon-nuclear bound states. A brief update is given on 1s…

核理论 · 物理学 2007-05-23 Wolfram Weise

We show that kaonic nuclei can be produced by the $(K^-,p)$ and $(K^-,n)$ reactions. The reactions are shown to have cross sections experimentally measurable. The observation of the kaonic nuclei gives a kaon-nucleus potential which answers…

核理论 · 物理学 2009-10-31 Tadafumi Kishimoto

We review the current status of our study of $K^-$-nuclear interactions and $K^-$-nuclear quasi-bound states. The adopted $K^-$-nuclear optical potential consists of two parts -- the single-nucleon one constructed microscopically from…

We study theoretically the (K^-,N) reactions for the formation of the deeply bound kaonic atoms, which were predicted to be quasi--stable with narrow widths, using the Green function method. We consider various cases with different target…

核理论 · 物理学 2008-11-26 J. Yamagata , H. Nagahiro , R. Kimura , S. Hirenzaki

$K^-$ optical potentials relevant to calculations of $K^-$ nuclear quasi-bound states were developed within several chiral meson-baryon coupled-channel interaction models. The applied models yield quite different $K^-$ binding energies and…

核理论 · 物理学 2017-07-26 J. Hrtánková , J. Mareš

Recent progress and open problems in kaonic atom physics are presented. A connection between phenomenological deep potentials and the underlying $K^-N$ interaction is established as well as the need for a theory for multinucleon absorption…

核理论 · 物理学 2012-05-11 E. Friedman

We considered the kaon absorption from atomic states into nucleus. We found that the nuclear density probed by the atomic kaon significantly depends on the kaon orbit. Then, we reexamined the meanings of the observed strengths of one-body…

核理论 · 物理学 2008-11-26 Junko Yamagata , Satoru Hirenzaki

The key question of this letter is whether the K-nucleus optical potential is deep, as it is prefered by the phenomenological fits to kaonic atoms data, or shallow, as it comes out from unitary chiral model calculations. The current…

核理论 · 物理学 2011-05-13 V. K. Magas , J. Yamagata-Sekihara , S. Hirenzaki , E. Oset , A. Ramos
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