Gravitational form factors of the $Z$-boson
P. Bei{\ss}ner, J. Yu. Panteleeva, B.-D. Sun, E. Epelbaum, J. Gegelia
TL;DR
This paper calculates the one-loop electroweak corrections to the gravitational form factors of the Z-boson, providing insights into its energy-momentum tensor and physical properties.
Contribution
It introduces the first calculation of electroweak one-loop corrections to the gravitational form factors of the Z-boson and discusses their renormalization and interpretation.
Findings
Electroweak corrections significantly modify the form factors.
Renormalization procedures for the form factors are established.
Physical implications of the form factors are analyzed.
Abstract
Matrix elements of the energy-momentum tensor for one-particle states of the -boson are parameterized in terms of gravitational form factors. One-loop order electroweak corrections to these quantities are calculated. Renormalization and physical interpretation of the obtained results are discussed.
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Taxonomy
TopicsQuantum Chromodynamics and Particle Interactions · Particle physics theoretical and experimental studies · Quantum and Classical Electrodynamics