Qin-Tao Song

activity

20222026

collaborators

6 papers

hep-ph2026

Next-to-next-to-leading order QCD corrections to pion (kaon)-induced exclusive Drell-Yan process

Yu Jia, Bernard Pire, Qin-Tao Song +2

The high-energy pion and kaon beams proposed for future experiments at J-PARC offer a unique opportunity to investigate exclusive Drell-Yan processes induced by pions or kaons, whi…

hep-ph2026

Deeply virtual pion production through two-loop order

Wen Chen, Feng Feng, Yu Jia +3

Deeply virtual meson production (DVMP) is among the most prominent channels to extract the nucleon's generalized parton distributions (GPDs) at $e p$ scattering facilities such as {…

hep-ph2025

Accessing baryon-antibaryon generalized distribution amplitudes in $e^{\pm} γ \to e^{\pm} B B ˉ$

Jing Han, Bernard Pire, Qin-Tao Song

$γ^{*} γ \to B B ˉ$ is the golden process to access chiral-even di-baryon generalized distribution amplitudes (GDAs) as deeply virtual Compton scattering has proven to be for the…

hep-ph2025

Baryon-antibaryon generalized distribution amplitudes and $e^{+} e^{-} \to B B ˉ γ$

Jing Han, Bernard Pire, Qin-Tao Song

Baryon-antibaryon generalized distribution amplitudes (GDAs) give an access to timelike gravitational form factors (GFFs) which are complementary to the spacelike ones which can be…

hep-ph2023

Kinematical higher-twist corrections in $γ^{*} \to M_{1} M_{2} γ$ : Charged meson production

Bernard Pire, Qin-Tao Song

Generalized distribution amplitudes (GDAs) of mesons can be probed by the reactions $e^{-} e^{+} \to M_{1} M_{2} γ$ , which are accessible at electron-positron colliders such as BESIII and…

hep-ph2022

Kinematical higher-twist corrections in $γ^{*} γ \to π π$

Cédric Lorcé, Bernard Pire, Qin-Tao Song

We apply the Braun-Manashov technique to improve the description of $γ^{*} (q_{1}) γ (q_{2}) \to M (p_{1}) M (p_{2})$ amplitudes at large $Q^{2} = - q_{1}^{2}$ and small $s = (q_{1} + q_{2})^{2}$ . We derive the ki…

Next-to-next-to-leading order QCD corrections to pion (kaon)-induced exclusive Drell-Yan process

Deeply virtual pion production through two-loop order

Accessing baryon-antibaryon generalized distribution amplitudes in e±γ→e±BBˉ

Baryon-antibaryon generalized distribution amplitudes and e+e−→BBˉγ

Kinematical higher-twist corrections in γ∗→M1​M2​γ: Charged meson production

Kinematical higher-twist corrections in γ∗γ→ππ

Accessing baryon-antibaryon generalized distribution amplitudes in $e^{\pm} γ \to e^{\pm} B B ˉ$

Baryon-antibaryon generalized distribution amplitudes and $e^{+} e^{-} \to B B ˉ γ$

Kinematical higher-twist corrections in $γ^{*} \to M_{1} M_{2} γ$ : Charged meson production

Kinematical higher-twist corrections in $γ^{*} γ \to π π$