5 Result(s)
within
Zhibai Zhang
Classical and Quantum Gravitation, Relativity Theory
Elementary Particles, Quantum Field Theory
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Article
Open AccessLearning non-Higgsable gauge groups in 4D F-theory
We apply machine learning techniques to solve a specific classification problem in 4D F-theory. For a divisor D on a given complex threefold base, we want to read out the non-Higgsable gauge group on it using loc...
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Article
Open AccessSingly-spinning black rings in D = 5 U(1)3 supergravity
We construct black ring solutions in five-dimensional U(1)3 supergravity which carry three dipole charges, three electric charges and one angular momentum parameter. These solutions are written in a form that is ...
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Article
Open AccessNNLO hard functions in massless QCD
We derive the hard functions for all 2 → 2 processes in massless QCD up to next-to-next-to-leading order (NNLO) in the strong coupling constant. By employing the known one- and two-loop helicity amplitudes for...
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Article
Boundary contributions using fermion pair deformation
Continuing the study of boundary BCFW recursion relation of tree level amplitudes initiated in [1], we consider boundary contributions coming from fermion pair deformation. We present the general strategy for ...
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Article
BCFW recursion relation with nonzero boundary contribution
The appearance of BCFW on-shell recursion relation has deepen our understanding of quantum field theory, especially the one with gauge boson and graviton. To be able to write the BCFW recursion relation, the k...
