Leptophilic U(1) Massive Vector Bosons from Large Extra Dimensions

Autor: X. Huang, Dieter Lüst, Ignatios Antoniadis, Tomasz R. Taylor, Luis A. Anchordoqui
Přispěvatelé: Laboratoire de Physique Théorique et Hautes Energies (LPTHE), Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Quark
High Energy Physics - Theory
Nuclear and High Energy Physics
Particle physics
interpretation of experiments: CERN LHC Coll
QC1-999
FOS: Physical sciences
scale: string
01 natural sciences
vector boson: massive
Standard Model
Brookhaven Lab
High Energy Physics - Phenomenology (hep-ph)
lepton: coupling: high
0103 physical sciences
excited state
010306 general physics
Boson
Physics
Gauge boson
Muon
gauge boson
Anomalous magnetic dipole moment
muon: magnetic moment
010308 nuclear & particles physics
[PHYS.HTHE]Physics [physics]/High Energy Physics - Theory [hep-th]
Z': model
symmetry: U(1)
High Energy Physics - Phenomenology
High Energy Physics - Theory (hep-th)
gravitation
[PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph]
Large extra dimension
High Energy Physics::Experiment
Kaluza-Klein
higher-dimensional
Lepton
Zdroj: Physics Letters B
Physics Letters B, Elsevier, 2021, 820, pp.136585. ⟨10.1016/j.physletb.2021.136585⟩
Physics Letters
Physics Letters B, Vol 820, Iss, Pp 136585-(2021)
ISSN: 0370-2693
DOI: 10.1016/j.physletb.2021.136585⟩
Popis: We demonstrate that the discrepancy between the anomalous magnetic moment measured at BNL and Fermilab and the Standard Model prediction could be explained within the context of low-scale gravity and large extra-dimensions. The dominant contribution to $(g-2)_\mu$ originates in Kaluza-Klein (KK) excitations (of the lepton gauge boson) which do not mix with quarks (to lowest order) and therefore can be quite light avoiding LHC constraints. We show that the KK contribution to $(g-2)_\mu$ is universal with the string scale entering as an effective cutoff. The KK tower provides a unequivocal distinctive signal which will be within reach of the future muon smasher.
Comment: Matching journal version; addendum in arXiv:2110.01247
Databáze: OpenAIRE
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