activity
20222026
most citedHeavy-quark pair production at lepton colliders at NNNLO in QCD

16 citations · 26 across the 11 of their papers we have counts for

collaborators

11 papers

hep-ph2026

Heavy-to-light Structure Functions at in QCD

Long Chen, Xiang Chen, Xin Guan +1

We present the first complete and perturbative QCD corrections to all five heavy-to-light structure functions underlying the triple-differ…

hep-ph2026

Triple Differential Heavy-to-light Semi-leptonic Decays at Next-to-Next-to-Next-to-Leading Order in QCD

Long Chen, Xiang Chen, Xin Guan +1

We report the first complete calculation of the five heavy-to-light hadronic structure functions underlying semi-leptonic heavy-quark decays at next-to-next-to-next-to-leading orde…

hep-ph2025

Two-loop QCD-corrections to

Xiang Chen, Xin Guan, Chuan-Qi He +1

We present a next-to-next-to-leading-order calculation within the nonrelativistic QCD framework for the process of . We find t…

hep-ph2025

Analytical two-loop amplitudes of at factories

Xiang Chen, Xin Guan, Chuan-Qi He +3

In double charmonium production, a long-standing challenge is that the theoretical predictions are not consistent with the measurements at B factories. Within the NRQCD framework,…

hep-ph2024

Determination of the Strong Coupling Constant from Inclusive Semi-leptonic Meson Decays

Yuzhi Che, Long Chen, Jinfei Wu +5

We demonstrate the feasibility of determining the strong coupling constant, , from the inclusive semileptonic decay width of mesons. We express the semileptonic decay…

hep-ph2024★ 3 cited

Blade: A package for block-triangular form improved Feynman integrals decomposition

Xin Guan, Xiao Liu, Yan-Qing Ma +1

In this article, we present the package {\tt Blade} as the first implementation of the block-triangular form improved Feynman integral reduction method. The block-triangular form h…

hep-th2023★ 5 cited

A high-precision result for a full-color three-loop three-point form factor in SYM

Xin Guan, Guanda Lin, Xiao Liu +2

We perform a high-precision computation of the three-loop three-point form factor of the stress-tensor supermultiplet in SYM. Both the leading-color and non-leading-co…

hep-ph2023★ 1 cited

Top-Quark Decay at Next-to-Next-to-Next-to-Leading Order in QCD

Long Chen, Xiang Chen, Xin Guan +1

We present the first complete high-precision QCD corrections to the inclusive decay width , the -helicity fractions and semi-inclusive distribut…

hep-ph2023

Exploring the linear space of Feynman integrals via generating functions

Xin Guan, Xiang Li, Yan-Qing Ma

Deriving a comprehensive set of reduction rules for Feynman integrals has been a longstanding challenge. In this paper, we present a proposed solution to this problem utilizing gen…

hep-ph2022★ 1 cited

Complete two-loop electroweak corrections to

Xiang Chen, Xin Guan, Chuan-Qi He +3

We compute the complete two-loop electroweak corrections to the Higgsstralung process at the future Higgs factory. The Feynman integrals involved in the comp…

hep-ph2022★ 16 cited

Heavy-quark pair production at lepton colliders at NNNLO in QCD

Xiang Chen, Xin Guan, Chuan-Qi He +2

We compute the total cross-section and invariant mass distribution for heavy-quark pair production in annihilation at the next-to-next-to-next-to-leading order in QCD. The…