Shan Cheng

activity

20122022

B \to D^{(*)} l ν

in the perturbative QCD factorization approach

48 citations · 524 across the 30 of their papers we have counts for

collaborators

Showing 2017Show all

2 papers · 1 filter

hep-ph2017★ 31 cited

Timelike-helicity $B \to π π$ form factor from light-cone sum rules with dipion distribution amplitudes

Shan Cheng, Alexander Khodjamirian, Javier Virto

We complete the set of QCD light-cone sum rules for $B \to π π$ transition form factors, deriving a new sum rule for the timelike-helicity form factor $F_{t}$ in terms of dipion distri…

hep-ph2017★ 5 cited

Revisiting the factorization theorem for $ρ γ^{*} \to π (ρ)$ at twist 3

Shan Cheng, Ya-lan Zhang, Jun Hua +2

We revisit the proof of the perturbative QCD factorization for the exclusive processes $ρ γ^{⋆} \to π (ρ)$ at the two-parton twist-3 level. It is pointed out that the residual co…

Timelike-helicity B→ππ form factor from light-cone sum rules with dipion distribution amplitudes

Revisiting the factorization theorem for ργ∗→π(ρ) at twist 3

Timelike-helicity $B \to π π$ form factor from light-cone sum rules with dipion distribution amplitudes

Revisiting the factorization theorem for $ρ γ^{*} \to π (ρ)$ at twist 3