1993/09/14 by L. Lavoura, Ling-Fong Li · 64 citations
Mathematics · Physics and Astronomy · #Black Holes and Theoretical Physics #Computer science #Constant (computer programming) #Fermion #Geometry #Hypercharge #Isospin #Mathematics #Multiplet #Nuclear physics #Oblique case #Particle physics #Particle physics theoretical and experimental studies #Philosophy #Physics #Quantum Chromodynamics and Particle Interactions #Quantum mechanics #Scalar (mathematics) #Weak isospin #hep-ph
paper · pdf · doi:10.1103/physrevd.49.1409
published in Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D. Particles and fields 49(3), 1409-1416 (American Physical Society) · 9 pages, standard LATEX, 3 figures available from the authors, report CMU-HEP93-17 and DOE-ER/40682-42
arxiv created 1993/09/14 · openalex publication_date 1994/02/01 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We compute the oblique parameters, including the three new parameters V, W, and X introduced recently by Maksymyk and co-workers, for the case of one scalar multiplet of arbitrary weak isospin J and weak hypercharge Y. We show that, when the masses of the heaviest and lightest components of the multiplet remain constant, but J increases, the oblique parameter U and the three new oblique parameters increase like J3, while T only increases like J. For large multiplets with masses not much higher than mZ, the oblique parameters U and V may become much larger than T and S.