New molecular candidates: X(2000), X(2200), and X(2350)

Details New molecular candidates: X(2000), X(2200), and X(2350) New molecular candidates: X(2000), X(2200), and X(2350)

2012-03-04

arxiv.org/abs/1203.0700v2

Physics

High Energy Physics

High Energy Physics - Phenomenology

6 pages, 5 eps figures; Typos corrected

Scientific paper

Assuming the newly observed resonant structures X(2000), X(2200), and X(2350) as $\omega\omega$, $\omega\phi$, and $\phi\phi$ molecular states respectively, we compute their mass values in the framework of QCD sum rules. The numerical results are $1.97\pm0.17 {GeV}$ for $\omega\omega$ state, $2.07\pm0.21 {GeV}$ for $\omega\phi$ state, and $2.18\pm0.29 {GeV}$ for $\phi\phi$ state, which coincide with the experimental values of X(2000), X(2200), and X(2350), respectively. This supports the statement that X(2000), X(2200), and X(2350) could be $\omega\omega$, $\omega\phi$, and $\phi\phi$ molecular candidates respectively.

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