master integral
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2020 ◽  
Vol 31 (10) ◽  
pp. 2050146
Author(s):  
Michelangelo Preti

We present Star–Triangle Relations (STRs), a Mathematica® package designed to solve Feynman diagrams by means of the method of uniqueness in any Euclidean space-time dimension. The method of uniqueness is a powerful technique to solve multi-loop Feynman integrals in theories with conformal symmetry imposing some relations between the powers of propagators and the space-time dimension. In our algorithm, we include both identities for scalar and Yukawa type integrals. The package provides a graphical environment in which it is possible to draw the desired diagram with the mouse input and a set of tools to modify and compute it. Throughout the use of a graphic interface, the package should be easily accessible to users with little or no previous experience on diagrams computation. This manual includes some pedagogical examples of computation of Feynman graphs as the scalar two-loop kite master integral and a fermionic diagram appearing in the computation of the spectrum of the [Formula: see text]-deformed [Formula: see text] SYM in the double scaling limit.


2020 ◽  
Vol 51 (4) ◽  
pp. 609-613
Author(s):  
N. Volchanskiy ◽  
S. V. Mikhailov
Keyword(s):  

2007 ◽  
Vol 2007 (07) ◽  
pp. 033-033 ◽  
Author(s):  
Andrey G Grozin ◽  
Tobias Huber ◽  
Daniel Maître
Keyword(s):  

2007 ◽  
Vol 50 (2) ◽  
pp. 398
Author(s):  
Jungil Jungil ◽  
Hyeon-Kyun Hyeon-Kyun ◽  
Chaehyun Chaehyun

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