• DOI:10.1140/epjc/s10052-018-5640-4
• Corpus ID: 119503268

Testing the doubly charged charm–strange tetraquarks

@article{Agaev2017TestingTD,
  title={Testing the doubly charged charm–strange tetraquarks},
  author={Shahin S. Agaev and Kazem Azizi and Hayriye Sundu},
  journal={The European Physical Journal C},
  year={2017},
  volume={78},
  pages={1-14}
}

• S. Agaev, K. Azizi, H. Sundu
• Published 5 October 2017
• Physics
• The European Physical Journal C

The spectroscopic parameters and decay channels of the doubly charged scalar, pseudoscalar and axial-vector charm–strange tetraquarks $$Z_{ \overline{c}s}=[sd][\overline{u} \overline{c}]$$Zc¯s=[sd][u¯c¯] are explored within framework of the QCD sum rule method. The masses and current couplings of these diquark–antidiquark states are calculated by means of two-point correlation functions and taking into account the vacuum condensates up to eight dimensions. To compute the strong couplings of $$Z_{\overline{c}s}$$Zc¯s states with $$D,\ D_{s},\ D^{*},\ D_{s}^{*},\ D_{s1}(2460),\ D_{s0}^{*}(2317),\ \pi $$D,Ds,D∗,Ds∗,Ds1(2460),Ds0∗(2317),π and K mesons we use QCD light-cone sum rules and evaluate width of their S- and P-wave decays to a pair of negatively charged conventional mesons: For the scalar state $$Z_{\overline{c}s}\rightarrow D_s \pi ,\ DK, \ D_{s1}(2460)\pi $$Zc¯s→Dsπ,DK,Ds1(2460)π, for the pseudoscalar state $$Z_{\overline{c}s} \rightarrow D_{s}^{*}\pi ,\ D^{*}K, \ D_{s0}^{*}(2317)\pi ,$$Zc¯s→Ds∗π,D∗K,Ds0∗(2317)π, and for the axial-vector state $$Z_{\overline{c}s} \rightarrow D_{s}^{*}\pi ,\ D^{*}K,\ D_{s1}(2460)\pi $$Zc¯s→Ds∗π,D∗K,Ds1(2460)π decays are investigated. Obtained predictions for the spectroscopic parameters and decay widths of the $$Z_{\overline{c}s}$$Zc¯s tetraquarks may be useful for experimental investigations of the doubly charged exotic hadrons.