English

Deep learning topological inference-guided $T_{cc}^{+}$ pole parameter extraction

High Energy Physics - Phenomenology 2026-03-19 v1

Abstract

We perform a data-driven study of the doubly charmed tetraquark candidate Tcc+T_{cc}^+. An ensemble of deep neural network classifiers, trained on synthetic amplitudes with controlled analytic structures, identifies a dominant pole topology characterized by an isolated pole on the [bt][bt] Riemann sheet which is robust against left-hand cut effects. A subsequent pole parameter extraction was performed via the uniformized S\mathcal{S}-matrix and a complementary K\mathcal{K}-matrix parameterization, which respectively provides a model-independent baseline and dynamical insight on the pole position and trajectory of the resonant state. Using this two-pronged approach, we submit that the Tcc+T_{cc}^{+} is a shallow D0D+D^0D^{*+} bound state in the second Riemann sheet of the complex plane.

Cite

@article{arxiv.2603.17763,
  title  = {Deep learning topological inference-guided $T_{cc}^{+}$ pole parameter extraction},
  author = {Julius B. Pagayon and Klarence Tomas R. Cervantes and Denny Lane B. Sombillo},
  journal= {arXiv preprint arXiv:2603.17763},
  year   = {2026}
}

Comments

20 pages, 12 figures

R2 v1 2026-07-01T11:26:15.111Z