R. N. Lee

activity

20172026

most cited

ε

-regular basis for non-polylogarithmic multiloop integrals and total cross section of the process

e^{+} e^{-} \to 2 (Q Q ˉ)

17 citations · 17 across the 9 of their papers we have counts for

collaborators

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4 papers · 1 filter

hep-ph2026

Method of regions for dual conformal integrals

Roman N. Lee

In this contribution, we present a recently introduced approach [BorkLeeOnishchenko2025] to the calculation of slightly off-shell dual conformal integrals based on the method of re…

hep-ph2024

Two-loop master integrals for $e^{+} e^{-} \to μ^{+} μ^{-}$ process with account of electron mass

Roman N. Lee

We calculate a subset of two-loop master integrals relevant for the differential cross section of $e^{+} e^{-} \to μ^{+} μ^{-}$ process. We consider only those families for which the account…

hep-ph2024

Master integrals for $e^{+} e^{-} \to 2 γ$ process at large energies and angles

Roman N. Lee, Vyacheslav A. Stotsky

We calculate two-loop massive master integrals for $e^{+} e^{-} \to 2 γ$ in terms of generalized power series with respect to electron mass. The coefficients of this series are…

hep-ph2019★ 17 cited

$ε$ -regular basis for non-polylogarithmic multiloop integrals and total cross section of the process $e^{+} e^{-} \to 2 (Q Q ˉ)$

R. N. Lee, A. I. Onishchenko

We argue that in many physical calculations where the "eliptic" sectors are involved, one can express the results via iterated integrals with almost all weights being rational. Our…

Method of regions for dual conformal integrals

Two-loop master integrals for e+e−→μ+μ− process with account of electron mass

Master integrals for e+e−→2γ process at large energies and angles

ε-regular basis for non-polylogarithmic multiloop integrals and total cross section of the process e+e−→2(QQˉ​)

Two-loop master integrals for $e^{+} e^{-} \to μ^{+} μ^{-}$ process with account of electron mass

Master integrals for $e^{+} e^{-} \to 2 γ$ process at large energies and angles

$ε$ -regular basis for non-polylogarithmic multiloop integrals and total cross section of the process $e^{+} e^{-} \to 2 (Q Q ˉ)$