# Decoding the X(5568) as a Fully Open-Flavor sub[over ¯]d[over ¯] Tetraquark State.

@article{Chen2016DecodingTX, title={Decoding the X(5568) as a Fully Open-Flavor sub[over ¯]d[over ¯] Tetraquark State.}, author={W. Chen and H. Chen and Xiang Liu and T. Steele and S. Zhu}, journal={Physical review letters}, year={2016}, volume={117 2}, pages={ 022002 } }

We investigate the recent evidence for a charged X(5568) meson as an exotic open-flavor tetraquark state sub[over ¯]d[over ¯] with J^{P}=0^{+}/1^{+} in the framework of QCD sum rules. We use the color antisymmetric [3[over ¯]_{c}]_{su}⊗[3_{c}]_{b[over ¯]d[over ¯]} tetraquark currents in both scalar and axial-vector channels to perform evaluations and numerical analyses. Our results imply that the X(5568) can be interpreted as both the scalar sub[over ¯]d[over ¯] tetraquark state and the axial… CONTINUE READING

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#### References

##### Publications referenced by this paper.

SHOWING 1-10 OF 29 REFERENCES

BaBar Collaboration

- 2009

Camb

- 2002

Chin

- 2014

Commun

- 2016

Khodjamirian, “At the Frontier of Particle Physics /Handbook of QCD”(World

- 2001

Nucl

- 1979

Nucl

- 2007

Nucl

- 2006