We study the interaction of the nDˉs1(2460) and nDˉs1(2536) systems from the perspective that the Ds1(2460) and Ds1(2536) states are molecular states of KD∗ 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 Ds1 states.
@article{arxiv.2508.05825,
title = {Correlation functions for $n\,\bar{D}_{s1}(2460)$ and $n\,\bar{D}_{s1}(2536)$},
author = {Breno Agatão and Pedro Brandão and A. Martinez Torres and K. P. Khemchandani and Luciano M. Abreu and E. Oset},
journal= {arXiv preprint arXiv:2508.05825},
year = {2025}
}