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- Institute for Theoretical and Experimental PhysicsRU125 papers
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43 papers · 1 filter
Charge asymmetry in the differential cross section of high-energy bremsstrahlung in the field of a heavy atom
P. A. Krachkov, A. I. Milstein
The distinction between the charged particle and antiparticle differential cross sections of high-energy bremsstrahlung in the electric field of a heavy atom is investigated. The c…
Decoupling in QED and QCD
Andrey Grozin
Decoupling of a heavy flavour in QCD is discussed in a pedagogical way. First we consider a simpler case: decoupling of muons in QED. All calculations are done up to 2 loops.
Decays of Fourth Generation Bound States
V. F. Dmitriev, V. V. Flambaum
We consider the decay modes of the heavy bound states originating from Higgs boson exchange between quark -- anti-quark pair. In case of a small coupling b…
Massless two-loop self-energy diagram: Historical review
A. G. Grozin
This class of diagrams has numerous applications. Many interesting results have been obtained for it.
Nucleon polarization in the process near threshold
A. E. Bondar, V. F. Dmitriev, A. I. Milstein +1
The process is studied nearby a threshold with account for polarizations of all initial and final particles. The nucleon polarization reveals…
Application of the DRA method to the calculation of the four-loop QED-type tadpoles
R. N. Lee, I. S. Terekhov
We apply the DRA method to the calculation of the four-loop `QED-type' tadpoles. For arbitrary space-time dimensionality D the results have the form of multiple convergent sums. We…