$e^+ e^- \to \mu^+ \mu^-$ in the Asymptotically Safe Standard Model

Autor:	Pastor-Gutiérrez, Álvaro, Pawlowski, Jan M., Reichert, Manuel, Ruisi, Giacomo
Rok vydání:	2024
Předmět:	High Energy Physics - Phenomenology General Relativity and Quantum Cosmology High Energy Physics - Theory
Druh dokumentu:	Working Paper
Popis:	We study the electron-positron to muon--anti-muon cross-section in the asymptotically safe Standard Model. In particular, we include the graviton contributions to the scattering amplitude, which is computed from momentum-dependent time-like one-particle-irreducible correlation functions. Specifically, we employ reconstruction techniques for the graviton spectral functions. We find that the full asymptotically safe quantum cross section decreases in the ultraviolet with the centre-of-mass energy, and is compatible with unitarity bounds. Importantly, our findings provide non-trivial evidence for the unitarity of the asymptotically safe Standard Model. Comment: 17 pages, 8 figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2412.13800 Zobrazit plný text záznamu View this record from Arxiv