Large production rate of new $B^0_s \pi^{\pm}$ and $D^{\pm}_s \pi^{\pm}$ states in high energy multi-production process

Understand

The production rate of the X(5568) observed by D0 collabotation is quite large and can not be understood by various general hadronization mechanism.

• We propose an inclusive resonance production formulation to calculate the cross section and extract the value of the effective wave function at origin.
• Based on these results we suspect X($D_s \pi^{\pm}$) can be copiously produced and observable at high enenrgy scatterings (the relative production ratio to D_s is larger than 10 %).
• In the updated version the discussions on cluster model and FI are added.