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Narrow Bound States of the DNN System |
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| Authors: | E Oset M Bayar C W Xiao T Hyodo A Dote M Oka |
| Institution: | 1. Departamento de Fisica Teorica and IFIC, Centro Mixto Universidad de Valencia-CSIC, Institutos de Investigacion de Paterna, Aptdo. 22085, 46071, Valencia, Spain 2. Department of Physics, Kocaeli University, 41380, Izmit, Turkey 3. Department of Physics, Tokyo Institute of Technology, Meguro, 152-8551, Japan 4. High Energy Accelerator Research Organization (IPNS/KEK), 1-1 Ooho, Tsukuba, Ibaraki, 319-1106, Japan 5. J-PARC Branch, KEK Theory Center, Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization (KEK), 203-1 Shirakata, Tokai, Ibaraki, 319-1106, Japan |
| Abstract: | We report on a recent calculation of the properties of the DNN system, a charmed meson with two nucleons. The system is analogous to the ${{\bar {K}}NN}$ system substituting a strange quark by a charm quark. Two different methods are used to evaluate the binding and width, the Fixed Center approximation to the Faddeev equations and a variational calculation. In both methods we find that the system is bound by about 200 MeV and the width is smaller than 40 MeV, a situation opposite to the one of the ${{\bar {K}}NN}$ system and which makes this state well suited for experimental observation. |
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