Related Experiment Video
Updated: Jun 18, 2025

Setting Limits on Supersymmetry Using Simplified Models
Published on: November 15, 2013
Constructibility of AdS Supergluon Amplitudes
Qu Cao1,2, Song He1,3,4,5, Yichao Tang1,6
1CAS Key Laboratory of Theoretical Physics, <a href="https://ror.org/02xtbq882">Institute of Theoretical Physics</a>, Chinese Academy of Sciences, Beijing 100190, China.
This study introduces a recursive method to construct tree-level supergluon amplitudes in Anti-de Sitter space (AdS_{5}). The approach simplifies complex calculations using R-symmetry and factorization, enabling amplitude determination.
Area of Science:
- High-energy physics
- Quantum field theory
- String theory
Background:
- Calculating scattering amplitudes in Anti-de Sitter space (AdS_{5}) is complex.
- Existing methods for tree-level amplitudes can be computationally intensive.
Purpose of the Study:
- To develop a recursive method for constructing all tree-level n-point supergluon (scalar) amplitudes in AdS_{5}.
- To simplify the calculation of these amplitudes through factorization and a flat-space limit.
Main Methods:
- Utilizing a natural R-symmetry basis for planar color-ordered amplitudes.
- Reducing amplitudes to 'partial amplitudes' with simplified pole structures.
- Employing 'gauge invariance' to extract spinning amplitudes.
- Using 'no-gluon kinematics' to determine higher-point scalar amplitudes.
Main Results:
- A recursive construction for all tree-level n-point supergluon amplitudes in AdS_{5} is established.
- The method is facilitated by R-symmetry and factorization properties.
- Explicit results for up to 8-point scalar and 6-point single-gluon amplitudes are provided.
Conclusions:
- The developed recursive method offers an efficient way to compute supergluon amplitudes in AdS_{5}.
- The simplification through R-symmetry basis and partial amplitudes is a key advancement.
- This work provides a powerful tool for theoretical physics research in curved spacetimes.
Related Concept Videos
Superposition Theorem for AC Circuits
The principle of superposition stipulates that the output of a linear circuit with several concurrent inputs is equivalent to the...
Superposition Theorem
¹H NMR: Complex Splitting
Splitting diagrams or splitting tree diagrams are routinely used to depict such complex couplings. While drawing splitting diagrams, the splitting with the larger coupling constant is usually applied...
Convolution Properties I
The commutative property reveals that the input and the impulse response of an LTI (Linear Time-Invariant) system can be interchanged without affecting the output:
SFG Algebra
Each node in an SFG corresponds to a variable, and the interactions between nodes are represented by branches with associated gains. When multiple branches lead into a node, the value at that node is the sum of the...
Method of Superposition
When applying the method of superposition, each type of load—whether...

