Total cross sections of eγ → $$ eX\overline{X} $$ processes with X = μ, γ, e via multiloop methods

Autor:	Vyacheslav A. Stotsky, Roman N. Lee, Alexey A. Lyubyakin
Rok vydání:	2021
Předmět:	Physics Nuclear and High Energy Physics Cross section (physics) Overline Analytical expressions Logarithm NLO Computations lcsh:QC770-798 Elliptic integral lcsh:Nuclear and particle physics. Atomic energy. Radioactivity Calculation methods Mathematical physics
Zdroj:	Journal of High Energy Physics Journal of High Energy Physics, Vol 2021, Iss 1, Pp 1-22 (2021)
ISSN:	1029-8479
DOI:	10.1007/jhep01(2021)144
Popis:	Using modern multiloop calculation methods, we derive the analytical expressions for the total cross sections of the processes e−γ →$$ {e}^{-}X\overline{X} $$ e − X X ¯ with X = μ, γ or e at arbitrary energies. For the first two processes our results are expressed via classical polylogarithms. The cross section of e−γ → e−e−e+ is represented as a one-fold integral of complete elliptic integral K and logarithms. Using our results, we calculate the threshold and high-energy asymptotics and compare them with available results.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cd18a2c312c96d54fc74682639ccdd45 https://doi.org/10.1007/jhep01(2021)144 Zobrazit plný text záznamu Full text from SpringerLink