Z. R. Najjar

collaborators

3 papers

hep-ph2025

Masses of Purely Top-Quark Bound States: Toponium and the Triply-Top Baryon

Z. Rajabi Najjar, K. Azizi

We investigate the pseudoscalar ( $η_{t}$ ) and vector ( $ψ_{t}$ ) toponium states, as well as the triply-top baryon ( $Ω_{ttt}$ ), using the QCD sum-rule method. This study was motivated by…

hep-ph2025

Study of the semileptonic decay $Λ \to p ℓ ν ˉ_{ℓ}$ in QCD

M. Ahmadi, Z. Rajabi Najjar, K. Azizi

We conduct a comprehensive study of the semileptonic decay process $Λ\to p\,\ell\,\barν_{\ell}$, focusing on the determination of all six vector and axial-vector form factors tha…

hep-ph2024

Semileptonic decay of the triply heavy $Ω_{cc b}$ to the observed $Ξ_{cc}^{++}$ state

Z. Rajabi Najjar, K. Azizi, H. R. Moshfegh

We investigate the weak semileptonic decay of the $Ω_{cc b}^{+} \to Ξ_{cc}^{++} ℓ ν ˉ_{ℓ}$ , where a triply heavy baryon with spin 1/2 decays into the observed dou…

Masses of Purely Top-Quark Bound States: Toponium and the Triply-Top Baryon

Study of the semileptonic decay Λ→pℓνˉℓ​ in QCD

Semileptonic decay of the triply heavy Ωccb​ to the observed Ξcc++​ state

Study of the semileptonic decay $Λ \to p ℓ ν ˉ_{ℓ}$ in QCD

Semileptonic decay of the triply heavy $Ω_{cc b}$ to the observed $Ξ_{cc}^{++}$ state