# Applications of the Large Mass Expansion

@article{Fleischer1998ApplicationsOT, title={Applications of the Large Mass Expansion}, author={J. Fleischer and A. Kotikov and O. Veretin}, journal={arXiv: High Energy Physics - Phenomenology}, year={1998}, volume={29} }

The method of the large mass expansion (LME) is investigated for selfenergy and vertex functions in two-loop order. It has the technical advantage that in many cases the expansion coefficients can be expressed analytically. As long as only one non-zero external momentum squared, q(2), is involved also the Taylor expansion (TE) w.r.t. small q(2) yields high precision results in a domain sufficient for most applications. In the case of only one non-zero mass M and only one external momentum… Expand

#### 8 Citations

Three-loop universal anomalous dimension of the Wilson operators in N = 4 SUSY Yang-Mills model

- Physics
- 2004

Abstract We present results for the three-loop universal anomalous dimension γuni(j) of Wilson twist-2 operators in the N =4 Supersymmetric Yang–Mills model. These expressions are obtained by… Expand

Differential equations, associators, and recurrences for amplitudes

- Physics, Mathematics
- 2016

Abstract We provide new methods to straightforwardly obtain compact and analytic expressions for ϵ -expansions of functions appearing in both field and string theory amplitudes. An algebraic method… Expand

Maximally helicity violating disk amplitudes, twistors and transcendental integrals

- Physics, Mathematics
- 2012

Abstract We obtain simple expressions for tree-level maximally helicity violating amplitudes of N gauge bosons from disk world-sheets of open superstrings. The amplitudes are written in terms of ( N… Expand

Motivic Multiple Zeta Values and Superstring Amplitudes

- Mathematics, Physics
- 2013

The structure of tree-level open and closed superstring amplitudes is analyzed. For the open superstring amplitude we find a striking and elegant form, which allows one to disentangle its… Expand

About Calculation of Massless and Massive Feynman Integrals

- Physics
- 2020

We report some results of calculations of massless and massive Feynman integrals particularly focusing on difference equations for coefficients of for their series expansions

Simplified leptoquark models for precision $l_i \rightarrow l_f \gamma$ experiments: two-loop structure of $O(\alpha_S Y^2)$ corrections.

- Physics
- 2020

We put forward the framework of simplified leptoquark models: simple extensions of the Standard Model that serve as benchmarks to test the interactions of leptons with new colored degrees of freedom… Expand

Crossing symmetry, transcendentality and the Regge behaviour of 1d CFTs

- Physics
- 2019

We develop the technology for Polyakov-Mellin (PM) bootstrap in one-dimensional conformal field theories (CFT$_1$). By adding appropriate contact terms, we bootstrap various effective field theories… Expand