High-Energy Evolution of Power-Suppressed Amplitudes

Fuente: arXiv
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Main Authors: Delto, Maximilian, Penin, Alexander, Tancredi, Lorenzo
Format: Preprint
Published: 2025
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author Delto, Maximilian
Penin, Alexander
Tancredi, Lorenzo
author_facet Delto, Maximilian
Penin, Alexander
Tancredi, Lorenzo
contents We present a new class of evolution equations which govern the high-energy behavior of power-suppressed scattering amplitudes. The equations can be viewed as a renormalization group flow with respect to the relevant effective field theory cutoff. A distinct feature of the method is in the use of a multidimensional cutoff to separate the relevant scales in problems characterized by a complex factorization structure. By adjusting the renormalization group variables to the geometry of the effective theory modes, our method naturally extends to a broad spectrum of physical problems including massive, massless, small, and wide angle scattering. We present applications to the benchmark processes of electron-positron forward annihilation and light quark mediated Higgs boson production/decays.
format Preprint
id arxiv_https___arxiv_org_abs_2510_04914
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle High-Energy Evolution of Power-Suppressed Amplitudes
Delto, Maximilian
Penin, Alexander
Tancredi, Lorenzo
High Energy Physics - Phenomenology
We present a new class of evolution equations which govern the high-energy behavior of power-suppressed scattering amplitudes. The equations can be viewed as a renormalization group flow with respect to the relevant effective field theory cutoff. A distinct feature of the method is in the use of a multidimensional cutoff to separate the relevant scales in problems characterized by a complex factorization structure. By adjusting the renormalization group variables to the geometry of the effective theory modes, our method naturally extends to a broad spectrum of physical problems including massive, massless, small, and wide angle scattering. We present applications to the benchmark processes of electron-positron forward annihilation and light quark mediated Higgs boson production/decays.
title High-Energy Evolution of Power-Suppressed Amplitudes
topic High Energy Physics - Phenomenology
url https://arxiv.org/abs/2510.04914