R. Lee

activity

19982023

most citedLiteRed 1.4: a powerful tool for the reduction of the multiloop integrals

549 citations · 2.7k across the 57 of their papers we have counts for

collaborators

Showing 2020Show all

3 papers · 1 filter

hep-ph2020★ 98 cited

Libra: a package for transformation of differential systems for multiloop integrals

Roman N. Lee

We present a new package for Mathematica system, called Libra. Its purpose is to provide convenient tools for the transformation of the first-order differential systems $\partial_i…

hep-ph2020★ 9 cited

Total cross sections of $e γ \to e X X ˉ$ processes with $X = μ, γ, e$ via multiloop methods

Roman N. Lee, Alexey A. Lyubyakin, Vyacheslav A. Stotsky

Using modern multiloop calculation methods, we derive the analytical expressions for the total cross sections of the processes $e^{-} γ \to e^{-} X X ˉ$ with $X = μ, γ$ or $e$ at arbitr…

hep-ph2020★ 9 cited

Electron-positron annihilation to photons at $O (α^{3})$ revisited

Roman N. Lee

We apply the modern multiloop methods to the calculation of the total cross sections of electron-positron annihilation to 2 and 3 photons exactly in $s / m^{2}$ with the accuracy $O(α^…

Libra: a package for transformation of differential systems for multiloop integrals

Total cross sections of eγ→eXXˉ processes with X=μ,γ,e via multiloop methods

Electron-positron annihilation to photons at O(α3) revisited

Total cross sections of $e γ \to e X X ˉ$ processes with $X = μ, γ, e$ via multiloop methods

Electron-positron annihilation to photons at $O (α^{3})$ revisited