Preprint

PUBDB-2024-07767

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png $e^+ e^- \to \mu^+ \mu^-$ in the Asymptotically Safe Standard Model

Pastor-Gutiérrez, Á. ; Pawlowski, J. M. ; Reichert, M. ; Ruisi, G. (Corresponding author)DESY*

2024

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Please use a persistent id in citations: doi:10.3204/PUBDB-2024-07767

Report No.: DESY-24-208; arXiv:2412.13800

Abstract: 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.

Note: 17 pages, 8 figures

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Contributing Institute(s):

1. Zeuthen Particle PhysicsTheory (Z_ZPPT)

Research Program(s):

1. 611 - Fundamental Particles and Forces (POF4-611) (POF4-611)

Experiment(s):

1. No specific instrument

Appears in the scientific report 2024

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Database coverage:
; ; Published

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Linked articles:

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Journal Article Pastor-Gutiérrez, Á. ; Pawlowski, J. M. ; Reichert, M. ; Ruisi, G. (Corresponding author)DESY*
$e^+ e^- \to \mu^+ \mu^-$ in the Asymptotically Safe Standard Model
Physical review / D 111(10), 106005 (2025) [10.1103/PhysRevD.111.106005]2025     Files  Fulltext by arXiv.org BibTeX | EndNote: XML, Text | RIS

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