Overview of K̄-Nuclear Theory and Phenomenology Search for Narrow Quasibound States
نویسندگان
چکیده
Experimental evidence for K̄-nuclear quasibound states is briefly reviewed. Theoretical and phenomenological arguments for and against deep K̄-nucleus potentials which might allow for narrow quasibound states are reviewed, with recent calculations suggesting that ΓK̄ ≥ 100 MeV for BK̄ ≤ 100 MeV. Results of RMF calculations that provide a lower limit of ΓK̄ ∼ 50± 10 MeV on the width of deeply bound states are discussed.
منابع مشابه
Overview of K̄N and K̄ - nucleus dynamics
The main features of coupled-channel K̄N dynamics near threshold and its repercussions in few-body K̄-nuclear systems are briefly reviewed highlighting the I = 1/2 K̄NN system. For heavier nuclei, the extension of mean-field calculations to multi-K̄ nuclear quasibound states is discussed focusing on kaon condensation.
متن کاملChiral SU(3) Dynamics and Antikaon-Nuclear Quasibound States
Recent developments are summarised concerning low-energy K̄N interactions as they relate to the possible existence of antikaon-nuclear quasibound states. An exploratory study of antikaons bound to finite nuclei is performed, with emphasis on the evolution of such states from light to heavy nuclei (A = 16 208). The energy dependent, driving attractive K̄N interactions are constructed using the s-w...
متن کامل¯k-nuclear Deeply Bound States? ∗
Following the prediction by Akaishi and Yamazaki of relatively narrow K̄-nuclear states, deeply bound by over 100 MeV where the main decay channel K̄N → πΣ is closed, several experimental signals in stopped K reactions on light nuclei have been interpreted recently as due to such states. In this talk I review (i) the evidence from K-atom data for a deep K̄-nucleus potential, as attractive as V K̄ (...
متن کامل4 Widths of K̄ - nuclear deeply bound states in a dynamical model
The relativistic mean field (RMF) model is applied to a system of nucle-ons and a ¯ K meson, interacting via scalar and vector boson fields. The model incorporates the standard RMF phenomenology for bound nucleons and, for the ¯ K meson, it relates to low-energy ¯ KN and K − atom phenomenology. Deeply bound ¯ K nuclear states are generated dynamically across the periodic table and are exhibited...
متن کاملth / 0 40 70 63 v 1 2 1 Ju l 2 00 4 Widths of K̄ - nuclear deeply bound states in a dynamical model
The relativistic mean field (RMF) model is applied to a system of nucle-ons and a ¯ K meson, interacting via scalar and vector boson fields. The model incorporates the standard RMF phenomenology for bound nucleons and, for the ¯ K meson, it relates to low-energy ¯ KN and K − atom phenomenology. Deeply bound ¯ K nuclear states are generated dynamically across the periodic table and are exhibited...
متن کامل