RT Journal Article
T1 Radiative corrections to the S, T, U parameters and their impact on the W boson mass in the 331 model
A1 Rehman, Muhammad
A1 Iqbal, Hafiz Muhammad Adeel
A1 Gómez Santamaría, Mario Emilio
A1 Panella, O.
AB We investigate radiative corrections to electroweak precision observables, specifically the Peskin-Takeuchi parameters 𝑆, 𝑇, and 𝑈, in the 𝑆⁢𝑈⁢(3)𝐶 ×𝑆⁢𝑈⁢(3)𝐿 ×𝑈⁢(1)𝑋 model (also known as the 331 model) with 𝛽 =−√3. Using the sarah and spheno packages, we compute the mass spectrum and low-energy observables. We show that these parameters place strong constraints on the model, requiring most of the scalar masses to lie in the TeV range or below, and impose indirect bounds on the newly predicted gauge bosons. Furthermore, we demonstrate that the model can accommodate the 𝑊 boson mass anomaly reported by the CDF Collaboration, should future measurements confirm its persistence.
PB American Physical Society
SN 2470-0010
SN 2470-0029 (electrónico)
YR 2025
FD 2025
LK https://hdl.handle.net/10272/27640
UL https://hdl.handle.net/10272/27640
LA eng
NO Rehman, M., Iqbal, M. A., Gómez, M. E., & Panella, O. (2025). Radiative corrections to the S, T, U parameters and their impact on the W boson mass in the 331 model. Physical Review D, 112(5). https://doi.org/10.1103/vx7q-ns9p
NO M. R. acknowledges the support and hospitality provided by the University of Huelva and INFN Perugia during the course of this research project. The research of M. E. G. is supported by the Spanish MICINN, under Grant No. PID2022-140440NB-C22. O. P. is supported by the INFN Grant ENP (Exploring New Physics).
DS Repositorio Institucional de la Universidad de Huelva
RD 13 jun 2026