May the four be with you: Novel IR-subtraction methods to tackle NNLO calculations
In this manuscript, we report the outcome of the topical workshop: paving the way to
alternative NNLO strategies (https://indico. ific. uv. es/e/WorkStop-ThinkStart_3. 0), by …
alternative NNLO strategies (https://indico. ific. uv. es/e/WorkStop-ThinkStart_3. 0), by …
Universal opening of four-loop scattering amplitudes to trees
A bstract The perturbative approach to quantum field theories has made it possible to obtain
incredibly accurate theoretical predictions in high-energy physics. Although various …
incredibly accurate theoretical predictions in high-energy physics. Although various …
Formula for two-loop divergent part of 4-D Yang–Mills effective action
AV Ivanov, NV Kharuk - The European Physical Journal C, 2022 - Springer
In the paper, we study the two-loop contribution to the effective action of the four-
dimensional quantum Yang–Mills theory. We derive a new formula for the contribution in …
dimensional quantum Yang–Mills theory. We derive a new formula for the contribution in …
Two-loop application of the Breitenlohner-Maison/'t Hooft-Veltman scheme with non-anticommuting γ5: full renormalization and symmetry-restoring counterterms in an …
A bstract We apply the BMHV scheme for non-anticommuting γ 5 to an abelian chiral gauge
theory at the two-loop level. As our main result, we determine the full structure of symmetry …
theory at the two-loop level. As our main result, we determine the full structure of symmetry …
Rewording theoretical predictions at colliders with vacuum amplitudes
We propose multiloop vacuum amplitudes in the loop-tree duality (LTD) as the optimal
building blocks for efficiently assembling theoretical predictions at high-energy colliders …
building blocks for efficiently assembling theoretical predictions at high-energy colliders …
A brief review of implicit regularization and its connection with the bphz theorem
Quantum Field Theory, as the keystone of particle physics, has offered great insights into
deciphering the core of Nature. Despite its striking success, by adhering to local interactions …
deciphering the core of Nature. Despite its striking success, by adhering to local interactions …
Explicit cutoff regularization in coordinate representation
AV Ivanov - Journal of Physics A: Mathematical and Theoretical, 2022 - iopscience.iop.org
In this paper, we study a special type of cutoff regularization in the coordinate
representation. We show how this approach unites such concepts and properties as an …
representation. We show how this approach unites such concepts and properties as an …
Three-loop renormalization of the quantum action for a four-dimensional scalar model with quartic interaction with the usage of the background field method and a …
AV Ivanov - arxiv preprint arxiv:2402.14549, 2024 - arxiv.org
The paper studies the quantum action for the four-dimensional real $\phi^ 4$-theory in the
case of a general formulation using the background field method. The three-loop …
case of a general formulation using the background field method. The three-loop …
[HTML][HTML] Higgs boson decay into gluons in a 4D regularization: IR cancellation without evanescent fields to NLO
Higgs decay using an effective Higgs–Yang-Mills interaction in terms of a dimension five
operator as well as usual QCD interactions is revisited in the context of Implicit …
operator as well as usual QCD interactions is revisited in the context of Implicit …
[HTML][HTML] Infrared subtleties and chiral vertices at NLO: an implicit regularization analysis
We employ implicit regularization (IReg) in quark-antiquark decays of the Z, or of a scalar
(CP-even or odd) boson at NLO, and compare with dimensional schemes to reveal …
(CP-even or odd) boson at NLO, and compare with dimensional schemes to reveal …