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Abstract |
In anticipation of the new wave of ALICE experiments on particle-resonance correlation functions, we study the interaction of a kaon with the D*s0(2317) resonance. Assuming the D*s0(2317) to be a DK molecular state in isospin I = 0, we employ the fixed center approximation to describe the kaon scattering off the DK cluster, and implement elastic unitarity in the KD*s0(2317) amplitude via an optical potential and the Lippmann-Schwinger equation. We evaluate the scattering length, effective range, and correlation function, which exhibits a shape characteristic of a strongly attractive interaction. Notably, the amplitude develops a narrow resonant peak about 40 MeV below the KD*s0(2317) threshold, signaling a three-body bound state. We discuss the experimental feasibility of observing this state through the invariant mass distribution of KD & thorn;s pi 0, and argue that such three-body states, predicted by various theoretical approaches, offer promising targets for future experimental searches, providing valuable insights into the nature of exotic hadronic resonances. |
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Address |
[Jia, Wen-Hao; Li, Hai-Peng; Liang, Wei-Hong; Oset, Eulogio] Guangxi Normal Univ, Dept Phys, Guilin 541004, Peoples R China, Email: liangwh@gxnu.edu.cn; |
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