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arxiv 2508.05825 v1 pith:PTCLPBLC submitted 2025-08-07 hep-ph nucl-th

Correlation functions for n\,bar{D}_(s1)(2460) and n\,bar{D}_(s1)(2536)

Breno Agat\~ao , Pedro Brand\~ao , A. Martinez Torres , K. P. Khemchandani , Luciano M. Abreu , E. Oset This is my paper
classification hep-ph nucl-th
keywords statessystemscorrelationfunctionsmolecularthresholdapproximationassumed
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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We study the interaction of the $n \bar {D}_{s1}(2460)$ and $n \bar {D}_{s1}(2536)$ systems from the perspective that the $D_{s1}(2460)$ and $D_{s1}(2536)$ states are molecular states of $K D^*$ and $K^*D$, respectively. We use an improved version of the fixed center approximation to the Faddeev equations which fulfills exact elastic unitarity at the threshold of the systems. We predict the existence of resonant states below threshold and also determine the scattering length, effective range and correlation functions of these systems, showing that the results contain important information to test the assumed molecular nature of the two $D_{s1}$ states.

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Cited by 3 Pith papers

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    A unitarized fixed-center approximation predicts a narrow KX(3872) bound state 50 MeV below threshold and a characteristic femtoscopic correlation function.

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    Using the fixed-center approximation, the π⁰(η) f₁(1285) interaction yields scattering parameters and correlation functions but no clear poles for the π₁(1400), π₁(1600), or η₁(1855) resonances, only a broad structure...

  3. Correlation function and bound state from the $K D_{s0}^*(2317)$ interaction

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