4 papers
Soft theorems of tree-level , YM and NLSM amplitudes from -splits
Kang Zhou
In this paper, we extend the method proposed in \cite{Arkani-Hamed:2024fyd} for deriving soft theorems of amplitudes, which relies exclusively on factorization properties including…
On soft factors and transmutation operators
Fang-Stars Wei, Kang Zhou
The well known soft theorems state the specific factorizations of tree level gravitational (GR) amplitudes at leading, sub-leading and sub-sub-leading orders, with universal soft f…
Constructing tree amplitudes of scalar EFT from double soft theorem
Kang Zhou
The well known Adler zero can fully determine tree amplitudes of non-linear sigma model (NLSM), but fails to fix tree pion amplitudes with higher-derivative interactions. To fill t…
New recursive construction for tree NLSM and SG amplitudes, and new understanding of enhanced Adler zero
Kang Zhou
We propose a new bottom up method to construct tree amplitudes of non-linear sigma model (NLSM) and special Galileon theory (SG), based on assuming the universality of soft behavio…