Quark and lepton masses from renormalization-group fixed points

Journal Article · Sat Aug 01 04:00:00 EDT 1981 · Phys. Rev. D; (United States)

DOI:https://doi.org/10.1103/PhysRevD.24.691· OSTI ID:6448200

Hill, C T

The renormalization-group equations describing the evolution of fermion--Higgs-boson Yukawa coupling constants down from M/sub X/ in a grand unified theory possess fixed points which may lead to universal predictions for fermion masses independent of symmetry considerations at M/sub X/. Our analysis predicts roughly-equal240 GeV for the fixed-point t-quark mass. Alternatively, a sufficiently heavy fourth SU(5) generation cannot be ruled out by existing bounds on the number of fermion generations, n/sub f/, and we find fixed-point mass predictions of m/sub T/roughly-equal219 GeV, m/sub B/roughly-equal215 GeV, and m/sub E/roughly-equal60 GeV.

• Research Organization: Fermi National Accelerator Laboratory, Batavia, Illinois 60510
• OSTI ID: 6448200
• Journal Information: Phys. Rev. D; (United States), Journal Name: Phys. Rev. D; (United States) Vol. 24:3; ISSN PRVDA
• Country of Publication: United States
• Language: English

Related Subjects

645202* -- High Energy Physics-- Particle Interactions & Properties-Theoretical-- Electromagnetic Interactions & Properties
645203 -- High Energy Physics-- Particle Interactions & Properties-Theoretical-- Weak Interactions & Properties
645400 -- High Energy Physics-- Field Theory
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BOSONS
COUPLING CONSTANTS
ELEMENTARY PARTICLES
FERMIONS
FIELD THEORIES
HIGGS BOSONS
INTERMEDIATE BOSONS
LEPTONS
LIE GROUPS
MASS
MATHEMATICAL MODELS
NUCLEAR POTENTIAL
PARTICLE MODELS
POSTULATED PARTICLES
POTENTIALS
QUANTUM CHROMODYNAMICS
QUANTUM FIELD THEORY
QUARKS
RENORMALIZATION
SU GROUPS
SU-2 GROUPS
SU-3 GROUPS
SU-5 GROUPS
SYMMETRY BREAKING
SYMMETRY GROUPS
U GROUPS
U-1 GROUPS
UNIFIED GAUGE MODELS
YUKAWA POTENTIAL