Is X(3872) really a molecular state

作者： Yan-Rui Liu , Xiang Liu , Wei-Zhen Deng , Shi-Lin Zhu

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摘要: After taking into account both the pion and sigma meson exchange potential, we have performed a dynamical calculation of D-0(D) over bar*(0) system. The s potential is repulsive from heavy quark symmetry numerically important for loosely bound Our analysis disfavors interpretation X(3872) as molecular state if use experimental D*D pi coupling constant g = 0.59 reasonable cutoff around 1 GeV, which typical hadronic scale. Bound solutions with negative eigenvalues bar* system exist only either very large (twice value) or (Lambda similar to 6GeV beta 6GeV(2)). In contrast, there probably exists S-wave B (B) state. Once produced, such would be rather stable, since its dominant decay mode radiative through B* -> gamma. Experimental search these states will interesting.

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Is X(3872) really a molecular state

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Is X(3872) really a molecular state

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