4.7 Article

JPC=1-- hidden charm resonances

期刊

PHYSICAL REVIEW D
卷 78, 期 11, 页码 -

出版社

AMER PHYSICAL SOC
DOI: 10.1103/PhysRevD.78.114033

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资金

  1. Ministerio de Ciencia y Tecnologia [FPA2007-65748]
  2. Junta de Castilla y Leon [SA-106A07]
  3. South Valley University
  4. Higher Education Ministry of Egypt

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The recent B factories measurements of new states exhibit, in most of the decays, charmonium-like resonances. Among them we study the J(PC) = 1(--) hidden charm resonances in order to assert if they are q (q) over bar states or more complicated structures. The energy spectrum, electromagnetic, and strong decays are studied in a constituent quark model which has been able to reproduce the hadronic phenomenology and the baryon-baryon interaction. Most of the reported states are nicely interpreted as q (q) over bar pairs. The new psi(4360) state is found as the 4S state and the psi(4415) as the 3D which differs from the standard assignment. Some of the states, such as the Y(4260), cannot be accommodated as q (q) over bar pairs.

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