【摘 要】
：
Recently,the LHCb Collaboration reported their observation of the first two fully open-flavor tetraquark states named X0(2900) and X1 (2900) with unknown parity.Inspired by the report,we consider all the possible four-quark candidates for X(2900),which in
【机 构】
：
Department of Physics and Jiangsu Key Laboratory for Numerical Simulation of Large SaSystems,Nanjing
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Recently,the LHCb Collaboration reported their observation of the first two fully open-flavor tetraquark states named X0(2900) and X1 (2900) with unknown parity.Inspired by the report,we consider all the possible four-quark candidates for X(2900),which include the molecular structure,diquark structure,and their coupling in a chiral quark model via the Gaussian expansion method.To identify the genuine resonances,the real-scaling method (stabil-ization method) was employed.Our results show that five possible resonances,R0(2914) with Γ=42 MeV,R1(2906) with Γ =29 MeV,R1(2912) with Γ =10 MeV,RJ(2920) with Γ =9 MeV,and RJ(2842) with Γ =24 MeV,originate in the cs(qq) system.Compared with experimental data,R0(2914) with Γ =42 MeV may be an optim-al X0(2900) candidate.However,none of the resonances have a similar width for X1 (2900).Hence,further study is required.
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