87 citations · 479 across the 17 of their papers we have counts for
17 papers
Symbol letters of Feynman integrals from Gram determinants
Xuhang Jiang, Jiahao Liu, Xiaofeng Xu +1
Symbol letters are crucial for analytically calculating Feynman integrals in terms of iterated integrals. We present a novel method to construct the symbol letters for a given inte…
Resummation of Next-to-Leading Non-Global Logarithms at the LHC
Thomas Becher, Nicolas Schalch, Xiaofeng Xu
In cross sections with angular cuts, an intricate pattern of enhanced higher-order corrections known as non-global logarithms arises. The leading logarithmic terms were computed nu…
Real time lattice correlation functions from differential equations
Federico Gasparotto, Stefan Weinzierl, Xiaofeng Xu
We report on an exact calculation of lattice correlation functions on a finite four-dimensional lattice with either Euclidean or Minkowskian signature. The lattice correlation func…
QCD anatomy of photon isolation
Thomas Becher, Samuel Favrod, Xiaofeng Xu
To separate the energetic photons produced in hard scattering processes from those from other sources, measurements impose isolation requirements which restrict the hadronic radiat…
Baikov representations, intersection theory, and canonical Feynman integrals
Jiaqi Chen, Xuhang Jiang, Chichuan Ma +2
The method of canonical differential equations is an important tool in the calculation of Feynman integrals in quantum field theories. It has been realized that the canonical bases…
Two-loop anomalous dimension for the resummation of non-global observables
Thomas Becher, Thomas Rauh, Xiaofeng Xu
The soft radiation emitted in jet cross sections can resolve the directions and colors of individual hard partons, leading to a complicated pattern of logarithmically enhanced term…
Next-to-leading order corrections for with top quark mass dependence
Guoxing Wang, Xiaofeng Xu, Yongqi Xu +1
In this Letter, we present for the first time a calculation of the complete next-to-leading order corrections to the process. We use the method of small mass expansion…
Mixed QCD-EW corrections for Higgs leptonic decay via vertex
Chichuan Ma, Yuxuan Wang, Xiaofeng Xu +2
We consider the two-loop corrections to the vertex at order . We construct a canonical basis for the two-loop integrals using the Baikov representation and the inte…
Efficient computation of two-loop amplitudes for Higgs boson pair production
Guoxing Wang, Yuxuan Wang, Xiaofeng Xu +2
We present a precise and efficient computation of the two-loop amplitudes entering the Higgs boson pair production process via gluon fusion. Our approach is based on the small-Higg…
Constructing Canonical Feynman Integrals with Intersection Theory
Jiaqi Chen, Xuhang Jiang, Xiaofeng Xu +1
Canonical Feynman integrals are of great interest in the study of scattering amplitudes at the multi-loop level. We propose to construct -form integrals of the hypergeometri…
Top quark pair production near threshold: single/double distributions and mass determination
Wan-Li Ju, Guoxing Wang, Xing Wang +3
We investigate top quark pair production near the threshold where the pair invariant mass approaches , which provides sensitive observables to extract the top…
Transverse Parton Distribution and Fragmentation Functions at NNLO: the Quark Case
Ming-Xing Luo, Xing Wang, Xiaofeng Xu +3
We revisit the calculation of perturbative quark transverse momentum dependent parton distribution functions and fragmentation functions using the exponential regulator for rapidit…
Invariant-mass distribution of top-quark pairs and top-quark mass determination
Wan-Li Ju, Guoxing Wang, Xing Wang +3
We investigate the invariant-mass distribution of top-quark pairs near the threshold, which has strong impact on the determination of the top-quark mass . We show that…
Two-loop triangle integrals with 4 scales for the vertex
Yuxuan Wang, Xiaofeng Xu, Li Lin Yang
We calculate analytically the two-loop triangle integrals entering the corrections to the vertex with using the method of differential equatio…
Towards a new approximation for pair-production and associated-production of the Higgs boson
Xiaofeng Xu, Li Lin Yang
We propose that loop integrals with internal heavy particles can be evaluated by expanding in the limit of small external masses. This provides a systematically improvable approxim…
The next-to-next-to-leading order soft function for top quark pair production
Guoxing Wang, Xiaofeng Xu, Li Lin Yang +1
We present the first calculation of the next-to-next-to-leading order threshold soft function for top quark pair production at hadron colliders, with full velocity dependence of th…
Mixed QCD-EW corrections for Higgs boson production at colliders
Yinqiang Gong, Zhao Li, Xiaofeng Xu +2
Since the discovery of the Higgs boson at the Large Hadron Collider, a future electron-position collider has been proposed for precisely studying its properties. We investigate the…