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Article
Evaluating China’s Double First-Class Project from the Perspective of Economics
In 2017, China released its building list of First-class Universities and First-class Subjects (Double First classes), which should get great support for development for many years into the future. This paper ...
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Article
Is absolute purchasing power parity special for Spain?
Previous researches reveal that the validity of absolute purchasing power parity (APPP) may be weak or special for Spain. Thus, we explore the failure or the special character of APPP by examining 18 bilateral...
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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...