RT Journal Article
T1 Muon anomalous magnetic moment in the excited fermion paradigm
A1 Rehman, M.
A1 Muhammad, H.
A1 Panella, O.
A1 Gómez Santamaría, Mario Emilio
AB Extensions of the standard model featuring excited fermions present an interesting framework thatmotivates the search for exotic particles at the LHC. Additionally, these extensions offer potentialexplanations for the muon’s anomalous magnetic moment and other precision observables, shedding lighton the energy scale and key parameters of the new theory. Our analysis focuses on the one-loop radiativecorrection originating from excited lepton doublet and triplet states using the effective Lagrangianapproach. The bounds derived from the ðg − 2Þμ anomaly can be complemented with the ones arising fromother observables, like the electroweak precision observable Δρ and the signals from direct LHC searches to constrain the effective theory. Our results suggest that the ðg − 2Þμ anomaly can be addressed within a very narrow region of the effective theory scale. Consequently, this imposes indirect constraints on the parameter space of excited fermions
PB American Physical Society
SN 2470-0010
SN 2470-0029 (electrónico)
YR 2025
FD 2025-05
LK https://hdl.handle.net/10272/25615
UL https://hdl.handle.net/10272/25615
LA eng
NO Rehman, M., Muhammad, H., Panella, O., & Gómez, M. E. (2025). Muon anomalous magnetic moment in the excited fermion paradigm. Physical Review D, 111(9). https://doi.org/10.1103/physrevd.111.095006
NO The research of M. E. G. is supported by the SpanishMICINN, under grant PID2022-140440NB-C22. Theresearch of O. P. is supported by the Istituto Nazionaledi Fisica Nucleare, under the grant “Exploring NewPhysics” (ENP)
DS Repositorio Institucional de la Universidad de Huelva
RD 1 jun 2026