Could the observation of $X(5568)$ be resulted by the near threshold rescattering effects?


الملخص بالإنكليزية

We investigate the invariant mass distributions of $B_spi$ via different rescattering processes. Because the triangle singularity (TS) could be present for a very broad incident energy region, it can be expected that the TS peaks may simulate the resonance-like bump $X(5568)$ observed by the D0 collaboration. The highly process-dependent characteristic of TS mechanism offers a criterion to distinguish it from other dynamic mechanisms.

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