Global analysis of the ALP effective theory

• Verfasst von: Bruggisser, Sebastian [VerfasserIn]
• Verfasst von: Grabitz, Lara [VerfasserIn]
• Verfasst von: Westhoff, Susanne [VerfasserIn]
• Titel: Global analysis of the ALP effective theory
• Verf.angabe: Sebastian Bruggisser, Lara Grabitz, Susanne Westhoff
• E-Jahr: 2024
• Jahr: 17 January 2024
• Umfang: 28 S.
• Illustrationen: Illustrationen, Diagramme
• Fussnoten: Gesehen am 08.11.2024
• Titel Quelle: Enthalten in: Journal of high energy physics
• Ort Quelle: Berlin : Springer, 1997
• Jahr Quelle: 2024
• Band/Heft Quelle: (2024), 1, Artikel-ID 92, Seite 1-28
• ISSN Quelle: 1029-8479
• DOI: doi:10.1007/JHEP01(2024)092
• Datenträger: Online-Ressource
• Sprache: eng
• Sach-SW: Axions and ALPs
• Sach-SW: Experimental Particle Physics
• Sach-SW: New Light Particles
• Sach-SW: Rare Decays
• Sach-SW: Top Quark
• K10plus-PPN: 1908089970

Abstract

We perform a global fit of the effective Lagrangian for axion-like particles (ALPs) to data. By combining LHC observables from top physics, dijet and di-boson production with electroweak precision observables, we resolve the full parameter space of ALPs with flavor-universal couplings. Using the renormalization group to evolve the effective ALP couplings to low energies allows us to investigate the impact of flavor observables on the global analysis. We show that resonance searches in B → K meson decays significantly enhance the sensitivity to ALPs with sub-GeV masses. The lifetime of the ALP plays a crucial role in resolving the multi-dimensional parameter space with searches for prompt, displaced and invisible ALP decays. Our analysis points out the differences in probing an effective theory with new light particles, compared to scenarios with only non-resonant effects of heavy particles at low energies, as in the Standard Model Effective Field Theory.