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تسجيل مستخدم جديدHow to understand the underlying structures of $X(4140)$, $X(4274)$, $X(4500)$ and $X(4700)$
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Xiao-Hai Liu
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We investigate the possible rescattering effects which may contribute to the process $B^+to J/psiphi K^+$. It is shown that the $D_{s}^{*+}D_{s}^-$ rescattering via the open-charmed meson loops, and $psi^prime phi$ rescattering via the $psi^prime K_1$ loops may simulate the structures of $X(4140)$ and $X(4700)$, respectively. However, if the quantum numbers of $X(4274)$ ($X(4500)$) are $1^{++}$ ($0^{++}$), it is hard to to ascribe the observation of $X(4274)$ and $X(4500)$ to the $P$-wave threshold rescattering effects, which implies that $X(4274)$ and $X(4500)$ could be genuine resonances. We also suggest that $X(4274)$ may be the conventional orbitally excited state $chi_{c1}(3P)$.
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the narrow width of the state unless the quarks have a special color configuration.
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