Journal Article

PUBDB-2025-00519

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*

2025
American Physical Society Ridge, NY

This record in other databases:      

Please use a persistent id in citations: doi:10.1103/PhysRevD.111.106005  doi:10.3204/PUBDB-2025-00519

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 timelike 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

---

Contributing Institute(s):

1. Zeuthen Particle PhysicsTheory (Z_ZPPT)

Research Program(s):

1. 611 - Fundamental Particles and Forces (POF4-611) (POF4-611)
2. DFG project G:(GEPRIS)390900948 - EXC 2181: STRUKTUREN: Emergenz in Natur, Mathematik und komplexen Daten (390900948) (390900948)
3. DFG project G:(GEPRIS)273811115 - SFB 1225: Isolierte Quantensysteme und Universalität unter extremen Bedingungen (ISOQUANT) (273811115) (273811115)

Experiment(s):

1. No specific instrument

Appears in the scientific report 2025

---

Database coverage:
; ; ; ; Clarivate Analytics Master Journal List ; Current Contents - Electronics and Telecommunications Collection ; Current Contents - Physical, Chemical and Earth Sciences ; Ebsco Academic Search ; Essential Science Indicators ; IF >= 5 ; JCR ; SCOAP3 sponsored Journal ; SCOPUS ; Science Citation Index Expanded ; Web of Science Core Collection

---

---

Linked articles:

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Preprint Pastor-Gutiérrez, Á. ; Pawlowski, J. M. ; Reichert, M. ; Ruisi, G. (Corresponding author)DESY*
$e^+ e^- \to \mu^+ \mu^-$ in the Asymptotically Safe Standard Model
[10.3204/PUBDB-2024-07767]     Files  Fulltext by arXiv.org BibTeX | EndNote: XML, Text | RIS

---