Master integrals for bipartite cuts of three-loop photon self energy
نویسندگان
چکیده
We calculate master integrals for bipartite cuts of the three-loop propagator QED diagrams. These determine spectral density photon self energy. Our results are expressed in terms iterated integrals, which, apart from $4m$ cut, reduce to Goncharov's polylogarithms. The cut have been calculated our previous paper one-fold harmonic polylogarithms and complete elliptic integrals. provide threshold high-energy asymptotics found, including those cut.
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ژورنال
عنوان ژورنال: Journal of High Energy Physics
سال: 2021
ISSN: ['1127-2236', '1126-6708', '1029-8479']
DOI: https://doi.org/10.1007/jhep04(2021)177