Light scalar top squark in the minimal supersymmetric grand unified theory

Details Light scalar top squark in the minimal supersymmetric grand unified theory Light scalar top squark in the minimal supersymmetric grand unified theory

May 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994phrvl..72.3009f&link_type=abstract

Physical Review Letters, Volume 72, Issue 19, May 9, 1994, pp.3009-3012

Mathematics

Logic

8

Supersymmetric Partners Of Known Particles, Unified Theories And Models Of Strong And Electroweak Interactions, Supersymmetric Models

Scientific paper

We point out that a light scalar top squark with mass as small as mt~~=20 GeV is still an allowed possibility within the standard, minimal supersymmetry grand unified theory, if the photino exists at mass slightly below the scalar top mass, so that coannihilation efficiently takes place for γ~γ~-->gg in the early Universe. We show that this case, receiving a number of strong phenomenological constraints, leads to a restricted pattern of the mass spectrum of other supersymmetry particles.

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