Author

P. Encarnaci'on

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Preprint Sep 2026

The $D\pi$ and $D^*\pi$ femtoscopy puzzle

We present a relativistic momentum-space framework for femtoscopic correlation functions including strong and Coulomb interactions in coupled channels. The approach extends the Vincent--Phatak prescription to the three-dimensional Bethe--Salpeter equation, combining a fully relativistic treatment with the correct Coulo...

P. Encarnaci'on, M. Albaladejo, A. Feijoo et al. · 0 citations

Preprint Sep 2026

$ \bar K^0 d $ Bound State and Correlation Function

We study the $\bar{K}^0d$ system using a new formulation of the fixed-center approximation that preserves elastic unitarity. The resulting scattering amplitude predicts a bound state below threshold, which can be interpreted as a $\Lambda(1380)N$ configuration complementary to the $K^-pp$ state associated with the high...

M. Bayar, P. Encarnaci'on, A. Feijoo et al. · 1 citation

Preprint Sep 2026

The new LHCb beauty-strange state as the bottom partner of the $D_{s0}^*(2317)$: a LQCD constrained coupled-channel chiral analysis

The LHCb Collaboration has observed a narrow state in the $\bar{B}_s^0\pi^0$ spectrum, about 74 MeV below the $B^-K^+$ threshold, which is the natural candidate for the bottom partner of the $D_{s0}^*(2317)$. Such a state had been predicted as a $\bar{B}K$ bound state by unitarized heavy-meson chiral perturbation theor...

M. Albaladejo, P. Encarnaci'on, A. Feijoo et al. · 3 citations · ⚡2