Studying the scalar bound states of KK system in Bethe-Salpeter formalism
نویسندگان
چکیده
We study the possible bound states of the KK system in the Bethe-Salpeter formalism under the ladder approximation. We find that the bound states exist. However, these bound states have very small decay widths. Therefore, besides the possible KK component, there may be some other structures in the observed f0(980) and a0(980) . PACS Numbers: 11.10.St, 12.39.Mk, 12.39.Fe, 11.30.Rd ∗[email protected] †[email protected]
منابع مشابه
Studying the scalar bound states of the KK system in the Bethe-Salpeter formalism
We study the possible bound states of the KK system in the Bethe-Salpeter formalism in the ladder and instantaneous approximations. We find that the bound states exist. However, these bound states have very small decay widths. Therefore, besides the possible KK component, there may be some other structures in the observed f0(980) and a0(980) . PACS Numbers: 11.10.St, 12.39.Mk, 12.39.Fe, 11.30.R...
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