Final state interaction in the Λb →<i> D</i> plus D<i> -</i> Λ,<i> D0D</i>s-<i> p</i>,<i> D</i>s plus Ds-Λ reactions
PHYSICAL REVIEW D, cilt.112, sa.9, 2025 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 112 Sayı: 9
- Basım Tarihi: 2025
- Doi Numarası: 10.1103/l4qb-71qx
- Dergi Adı: PHYSICAL REVIEW D
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Chemical Abstracts Core, INSPEC, MathSciNet, zbMATH, Nature Index
- Açık Arşiv Koleksiyonu: AVESİS Açık Erişim Koleksiyonu
- İstanbul Üniversitesi Adresli: Hayır
Özet
We study the three-body decays Ab-* D & thorn;D-A, D0D-s p, D & thorn;s D-s A, considering both internal and external emission mechanisms that produce various meson-baryon final states. Using a unitarized coupled-channel approach based on the local hidden gauge formalism, we analyze final state interactions in the exotic anticharm systems with strangeness S = -1 and S = -2. Significant threshold enhancements appear in both pseudoscalar and vector meson-baryon channels, indicating strong final state interactions and the possible formation of molecular exotic states below threshold. These features remain stable under variations of model parameters. Our results provide valuable insights into heavy hadron decay dynamics and offer theoretical guidance for future experimental searches of open-charm strange exotic hadrons. These results take into account the effects of the D & thorn;A and D & thorn;D-interactions, three-body rescattering, possible triangle singularities, parameter uncertainties, and large Nc behavior, making the predictions very reliable.