Supersymmetry at ordinary energies. II. R invariance, Goldstone bosons, and gauge-fermion masses
We explore the observable consequences of supersymmetry, under the assumption that it is broken spontaneously at energies of order 300 GeV. Theories of this sort tend automatically to obey a global R symmetry, which presents us with a choice among phenomenologically unacceptable alternatives. If the R symmetry is broken by scalar vacuum expectation values of order 300 GeV, there will be a semiweakly coupled light Goldstone boson, similar to an axion. If it is not broken by such vacuum expectation values but is broken by quantum-chromodynamic (QCD) anomalies, then there will be a light ninth pseudoscalar meson. If it is not broken by QCD anomalies, then the asymptotic freedom of QCD is lost at high energies, killing the hope of an eventual meeting of the electroweak and strong couplings within the regime of validity of perturbation theory. We also confront the problem of an uncomfortably light gluino. A general analysis of gaugino masses shows that the gluino mass is at most of order 1 GeV, and in many cases much less.
- Research Organization:
- Department of Physics and Astronomy, Rutgers University, New Brunswick, New Jersey 08903
- OSTI ID:
- 5981603
- Journal Information:
- Phys. Rev. D; (United States), Vol. 27:11
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
GOLDSTONE BOSONS
SUPERSYMMETRY
ELECTROMAGNETIC INTERACTIONS
FERMIONS
GAUGE INVARIANCE
GEV RANGE 100-1000
MASS
QUANTUM CHROMODYNAMICS
SYMMETRY BREAKING
VACUUM STATES
WEAK INTERACTIONS
BASIC INTERACTIONS
BOSONS
ELEMENTARY PARTICLES
ENERGY RANGE
FIELD THEORIES
GEV RANGE
INTERACTIONS
INVARIANCE PRINCIPLES
POSTULATED PARTICLES
QUANTUM FIELD THEORY
SYMMETRY
645202* - High Energy Physics- Particle Interactions & Properties-Theoretical- Electromagnetic Interactions & Properties
645203 - High Energy Physics- Particle Interactions & Properties-Theoretical- Weak Interactions & Properties