Faddeev calculation of a $K^{-}pp$ quasi-bound state

Abstract

We report on the first genuinely three-body $\bar{K}NN-\pi \Sigma N$ coupled-channel Faddeev calculation in search for quasi-bound states in the $K^{-}pp$ system. The main absorptivity in the $K^{-}p$ subsystem is accounted for by fitting to $K^{-}p$ data near threshold. Our calculation yields one such quasi-bound state, with $I=1/2$, $J^{\pi }=0^{-}$, bound in the range $B\sim 55-70$ MeV, with a width of $\Gamma \sim 95-110$ MeV. These results differ substantially from previous estimates, and are at odds with the $K^{-}pp\to \Lambda p$ signal observed by the FINUDA collaboration.

arXiv commentMinor editorial revision; version accepted for publication in Phys. Rev. Lett

References in corpus (15)

• The Cosmological Parameters 2006
• Big-Bang nucleosynthesis (Particle Data Group mini-review)
• The properties of \bar{K} in the nuclear medium
• From Kaon-Nuclear Interactions to Kaon Condensation
• A critical view on the deeply bound K^- pp system
• Medium Modified Cross Sections, Temperature and Finite Momentum Effects for Antikaon Production in Heavy-Ion Collisions
• Study of chirally motivated low-energy $K^{-}$ optical potentials
• $\bar{K}$ nuclear bound states in a dynamical model
• Kaonic hydrogen and K^- p scattering
• $K^{-}$ - nucleus relativistic mean field potentials consistent with kaonic atoms
• Kaonic nuclei excited by the $(K^{-},N)$ reaction
• Widths of $\bar{K}$-nuclear deeply bound states in a dynamical model
• Low energy Kbar N interactions and Faddeev calculation of the K- d scattering length in isospin and particle bases
• Narrow deeply bound $K^{-}$ atomic states
• $K^{-}$ and $\bar{p}$ deeply bound atomic states

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