549 citations · 2.7k across the 57 of their papers we have counts for
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Charge asymmetry in the spectra of bremsstrahlung and pair production
Petr A. Krachkov, Roman N. Lee
We calculate the first Coulomb correction to the spectra of two processes: the electron bremsstrahlung and electron-positron photoproduction in the Coulomb field. We show that, in…
Four-loop HQET propagators from the DRA method
Roman N. Lee, Andrey F. Pikelner
We use dimensional recurrence relations and analyticity to calculate four-loop propagator-type master integrals in the heavy-quark effective theory. Compared to previous applicatio…
Four-loop QCD cusp anomalous dimension at small angle
Andrey G. Grozin, Roman N. Lee, Andrey F. Pikelner
We calculate the small angle expansion of the four-loop QCD cusp anomalous dimension. As a byproduct of our calculation, we also obtain the four-loop anomalous dimension of the hea…
Charge asymmetry in process
Fedor Ignatov, Roman N. Lee
We consider the charge asymmetry in the differential cross section of the process . Experimental data show large deviations from the results of the avail…
The vertex at four loops and hard matching coefficients in SCET for various currents
Amlan Chakraborty, Tobias Huber, Roman N. Lee +5
We compute the four-loop corrections to the Higgs-bottom vertex within massless QCD and present analytic results for all color structures. The infrared poles of the renormalized fo…
Quark and gluon form factors in four-loop QCD
Roman N. Lee, Andreas von Manteuffel, Robert M. Schabinger +3
We compute the photon-quark and Higgs-gluon form factors to four-loop order within massless perturbative Quantum Chromodynamics. Our results constitute ready-to-use building blocks…