Chiral unitary model for the kaonic atom
نویسندگان
چکیده
S. Hirenzaki, Y. Okumura, H. Toki, E. Oset, and A. Ramos Department of Physics, Nara Women’s University, Nara 630-8506, Japan Research Center for Nuclear Physics (RCNP), Osaka University, Ibaraki, Osaka 567-0047, Japan Departamento de Fı́sica Teórica, Universidad de Valencia, 46100 Burjassot (Valencia), Spain Departament d’Estructura i Constituents de la Matèria, Universidad de Barcelona, 08028 Barcelona, Spain ~Received 8 November 1999; published 11 April 2000!
منابع مشابه
Kaonic X-ray experiments at DAFNE using SIDDHARTA
The KN system at rest makes a sensitive testing ground for chiral SU(3) symmetry in QCD, especially for the explicit symmetry breaking induced by the relatively large mass of the strange quark. At the DAΦNE electron-positron collider of Laboratori Nazionali di Frascati we study kaonic atoms, taking advantage of the low-energy kaons from Φ-mesons decaying nearly at rest. The low-energy antikaon-...
متن کاملPrecision measurements on kaonic hydrogen and kaonic deuterium: DEAR and SIDDHARTA
The SIDDHARTA (SIlicon Drift Detector for Hadronic Atom Research by Timing Application) experiment [1] represents the scientific and technical development of DEAR (DAΦNE Exotic Atom Research) [2], as part of the program dedicated to exotic atoms at DAΦNE [3]. The objective consists in an eV precision measurement of the kaonic hydrogen Kα line shift and width induced by the strong interaction, a...
متن کاملFormation of Kaonic Atoms and Kaonic Nuclei in In-Flight (K, p) Reactions
We theoretically study kaonic atom and kaonic nucleus formation in in-flight (K−, p) reactions for C, O, Si and Ca targets. Deeply bound kaonic atoms were previously predicted to exist as quasi-stable states, and it is expected that they can be observed using certain well-suited experimental methods. Kaonic nuclear states have also been predicted to exist with large decay widths. We evaluate th...
متن کاملK−p scattering length from scattering experiments
The strong Kp scattering length is extracted within chiral SU(3) unitary approaches from a very large variety of fits to low-energy Kp scattering data. Very good overall agreement with available scattering data is obtained and the resulting scattering length is compared with the new accurate kaonic hydrogen data from DEAR. The pole structures of the obtained fits to experiment are critically ex...
متن کاملPrecision measurements of kaonic atoms at DAΦNE and future perspectives
The precision measurements of kaonic atoms at the DAΦNE accelerator at the LNF-INFN Laboratories are going to be performed in the framework of the SIDDHARTA international Collaboration [1]. The objective of the SIDDHARTA {Silicon Drift Detector for Hadronic Atom Research by timing Application) experiment is to continue, to deepen and enlarge the successful scientific line, initiated by the DEAR...
متن کامل