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PreprintarXiv licencearXiv

Predicting B(*)D̅(*) states from a reanalysis of lattice QCD data

  • Pan-Pan Shi
  • Miguel Albaladejo
  • Meng-Lin Du
  • Feng-Kun Guo
  • Victor Montesinos
  • Juan Nieves
Open at sourcePDFDOICite

Abstract

We reanalyze the lattice QCD data for the isoscalar b̅c̅ ud systems with JP=0+ and 1+ at mπ≃ 220 MeV, incorporating both short- and long-range interactions constrained by heavy-quark spin and chiral symmetries. Using the interaction fitted to the lattice results, we predict a spectrum of isoscalar B(*)D̅(*) molecular states with quantum numbers JP=0+, 1+, and 2+. The predicted JP=0+ and 1+ BD̅ and B*D̅ bound states are consistent with the lattice results. Furthermore, the two resonances reported by the lattice collaboration in the JP=0+ and 1+ b̅c̅ ud channels can be naturally interpreted as B*D̅* and BD̅* hadronic molecules, respectively. We also predict two previously unreported B*D̅* states with JP=1+ and 2+: a bound state and a shallow state whose pole may correspond to either a virtual state or a bound state, respectively. Our results provide a unified interpretation of the lattice spectrum and highlight the interplay between short- and long-range interactions in the dynamics of the B(*)D̅(*) systems.

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Cite

BibTeXRIS
BibTeX
@misc{shi2026predicting,
  title = {{Predicting $B^(*)\bar D^(*)$ states from a reanalysis of lattice QCD data}},
  author = {Pan-Pan Shi and Miguel Albaladejo and Meng-Lin Du and Feng-Kun Guo and Victor Montesinos and Juan Nieves},
  howpublished = {arXiv},
  year = {2026},
  month = oct,
  doi = {10.48550/arxiv.2610.38750},
  eprint = {2610.38750},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2610.38750},
}
RIS
TY  - UNPB
TI  - Predicting B^(*)D̅^(*) states from a reanalysis of lattice QCD data
AU  - Pan-Pan Shi
AU  - Miguel Albaladejo
AU  - Meng-Lin Du
AU  - Feng-Kun Guo
AU  - Victor Montesinos
AU  - Juan Nieves
PY  - 2026
DA  - 2026/10/28
PB  - arXiv
DO  - 10.48550/arxiv.2610.38750
UR  - https://arxiv.org/abs/2610.38750
AB  - We reanalyze the lattice QCD data for the isoscalar b̅c̅ ud systems with J^P=0^+ and 1^+ at m_π≃ 220 MeV, incorporating both short- and long-range interactions constrained by heavy-quark spin and chiral symmetries. Using the interaction fitted to the lattice results, we predict a spectrum of isoscalar B^(*)D̅^(*) molecular states with quantum numbers J^P=0^+, 1^+, and 2^+. The predicted J^P=0^+ and 1^+ BD̅ and B^*D̅ bound states are consistent with the lattice results. Furthermore, the two resonances reported by the lattice collaboration in the J^P=0^+ and 1^+ b̅c̅ ud channels can be naturally interpreted as B^*D̅^* and BD̅^* hadronic molecules, respectively. We also predict two previously unreported B^*D̅^* states with J^P=1^+ and 2^+: a bound state and a shallow state whose pole may correspond to either a virtual state or a bound state, respectively. Our results provide a unified interpretation of the lattice spectrum and highlight the interplay between short- and long-range interactions in the dynamics of the B^(*)D̅^(*) systems.
ER  -