The Ds(2317) and Ds(2459) Mesons in Ũ(12)-Classification Scheme of Hadrons
نویسندگان
چکیده
Shin Ishida1, Muneyuki Ishida2, Tomohito Maeda3, Masuho Oda4 and Kenji Yamada3 1 Research Institute of Science and Technology, College of Science and Technology Nihon University, Tokyo 101-0062, Japan 2 Department of Physics, Meisei University, Tokyo 191-8506. Japan 3 Department of Engineering Science, Junior College Funabashi Campus, Nihon University, Funabashi 274-8501, Japan 4 Faculty of Engineering, Kokushikan University, Tokyo 154-8515, Japan
منابع مشابه
Chiral doublings of heavy-light hadrons: New charmed mesons discovered by BABAR, CLEO and BELLE
We remind the chiral doubling scenario [1,2] for hadrons built of heavy and light quarks. Then we recall the arguments why new states Ds(2317), Ds(2460), D0(2308) and D ′ 1(2427) should be viewed as chiral partners of Ds, D∗ s , D and D ∗, respectively. We summarize with the list of predictions based of chiral doubling scenario for other heavy-light hadrons. Chiral doublings of heavy-light hadr...
متن کاملHard core attraction in hadron scattering and the family of the Ds meson molecule
We study the discovered Ds(2317) at BABAR, CLEO and BELLE, and find that it belongs to a class of strange multiquarks, which is equivalent to the class of kaonic molecules bound by hard core attraction. In this class of hadrons a kaon is trapped by a s-wave meson or baryon. To describe this class of multiquarks we apply the Resonating Group Method, and extract the hard core kaon-meson(baryon)in...
متن کاملar X iv : h ep - p h / 06 02 08 0 v 1 9 F eb 2 00 6 D s ( 2317 ) as a tetraquark state with QCD sum rules in heavy quark limit
In this article, we take the point of view that the charmed scalar meson Ds(2317) be a tetraquark state and calculate its mass within the framework of the QCD sum rules approach in the heavy quark limit. The numerical values for the mass of the Ds(2317) are consistent with the experimental data. There must be some tetraquark component in the Ds(2317) state. PACS number: 12.38.Aw, 12.38.Qk
متن کاملSTATUS OF CHIRAL DOUBLERS OF HEAVY-LIGHT HADRONS IN LIGHT OF RECENT BABAR, CLEO, BELLE AND SELEX Ds STATES∗
We explain the main idea of the chiral doublers scenario, originating from simultaneous constraints of chiral symmetry and of heavy quark spin symmetry on effective theories of heavy-light hadrons. In particular we discuss chiral doublers for mesons, chiral doublers for excited mesons, chiral doublers for baryons and chiral doublers for excited baryons. We point out the arguments why new states...
متن کاملChiral Mass Splitting for cs̄ and cn̄ Mesons in the Ũ (12)-Classification Scheme of Hadrons
We investigate the chiral mass splitting of parity-doubled J = 0,1 states for cs̄ and cn̄ meson systems in the Ũ(12)SF -classification scheme of hadrons, using the linear sigma model to describe the light-quark pseudoscalar and scalar mesons together with the spontaneous breaking of chiral symmetry, and consequently predict the masses of as-yet-unobserved (0+,1+) cn̄ mesons. We also mention some i...
متن کامل