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

Abstract

We investigate the invariant mass distributions of $B_s\pi$ 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.

10 pages, 7 figures, 1 table

Cited by in corpus (11)

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• Exotic Hadrons from Heavy Ion Collisions
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• Charmed partner of the exotic $X(5568)$ state and its properties
• $P$-wave coupled-channel scattering of $B_s\pi ,B_s^{\ast }\pi ,B\overline{K},B^{\ast }\overline{K}$ and the puzzling $X(5568)$
• Is the exotic $X(5568)$ a bound state?
• Is the newly reported $X(5568)$ a $B\bar{K}$ molecular state?
• Where does the X(5568) structure come from?
• B_c^+- decays into tetraquarks
• $B_s\pi$--$B\bar{K}$ interactions in finite volume and the $X(5568)$