Final state interaction in the Λb→D+D−Λ , D0Ds−p , Ds+Ds−Λ reactions
Physical Review D, cilt.112, ss.1-16, 2025 (Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 112
- Basım Tarihi: 2025
- Doi Numarası: 10.1103/l4qb-71qx
- Dergi Adı: Physical Review D
- Derginin Tarandığı İndeksler: Scopus
- Sayfa Sayıları: ss.1-16
- Kocaeli Üniversitesi Adresli: Evet
Özet
We study the three-body decays Λb → DþD−Λ; D0D−
s p; Dþ
s D−
s Λ, 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 ¼ −1 and S ¼ −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 DþΛ and DþD− interactions, three-body rescattering, possible triangle
singularities, parameter uncertainties, and large N c behavior, making the predictions very reliable.