24–29 Apr 2025
国科大杭州高等研究院 Hangzhou Institute for Advanced Study (UCAS)
Asia/Shanghai timezone

New Factorizations of Yang-Mills Amplitudes

26 Apr 2025, 10:30
30m

Speaker

Prof. Yong Zhang (Ningbo University)

Description

We propose a new factorization pattern for tree-level Yang-Mills (YM) amplitudes, where they decompose into a sum of gluings of two lower-point amplitudes by setting specific two-point nonplanar Mandelstam variables within a rectangular configuration to zero. This approach manifests the hidden zeros of YM amplitudes recently identified. Furthermore, by setting specific Lorentz products involving polarization vectors to zero, the amplitudes further reduce to a sum of products of three currents. These novel factorizations provide a fresh perspective on the structure of YM amplitudes, potentially enhancing our understanding and calculation of these fundamental quantities.

Author

Prof. Yong Zhang (Ningbo University)

Presentation materials