Analysis of the strong vertices $$\Lambda _cD^{(*)}N^*(1535)$$ and $$\Lambda _bB^{(*)}N^*(1535)$$ in QCD sum rules
Year: 2025
Type: article
Abstract: In this article, we firstly analyze the mass and pole residue of negative parity nucleon $$N^*(1535)$$ N ∗ ( 1535 ) within the two-point QCD sum rules. Basing on these results, we continuously study the strong coupling constants of vertices $$\Lambda _cDN^*$$ Λ c D N ∗ , $$\Lambda _cD^*N^*$$ Λ c D ∗ N ∗ , $$\Lambda _bBN^*$$ Λ b B N ∗ and $$\Lambda _bB^*N^*$$ Λ b B ∗ N ∗ in the framework of three-point QCD sum rules. At hadron side, all possible couplings of interpolating current to hadronic states are considered. At QCD side, the contributions of vacuum condensate terms $$\langle \bar{q}q\rangle $$ ⟨ q ¯ q ⟩ , $$\langle g_s^2GG\rangle $$ ⟨ g s 2 G G ⟩ , $$\langle \bar{q} g_s\sigma Gq\rangle $$ ⟨ q ¯ g s σ G q ⟩ , $$\langle \bar{q}q\rangle ^2$$ ⟨ q ¯ q ⟩ 2 and $$g_s^2\langle \bar{q}q\rangle ^2$$ g s 2 ⟨
Source: The European Physical Journal C
Language: English
Subfield: Nuclear and High Energy Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: diamond
OpenAlex ID: W4414459590