F-enomenology

The advantages of Flipped SU(5) over conventional Supersymmetric GUTs, like SU(5), are discussed. Recent values of the strong coupling at M_Z, sin-squared theta-Weinberg, g-2 of the muon, and the lower limit on the proton lifetime for the (K+, anti-neutrino) mode point directly to Flipped SU(5) as the simplest way to avoid potential pitfalls. It is shown that F(lipped)-enomenology accomodates easily all presently available low-energy data, favoring a rather light supersymmetric spectrum while yielding the right amount of Cold Dark Matter and a proton lifetime in the ((e+/muon+), pi-zero) mode which is beyond the present experimental limit yet still possibly accessible to a further round of experiments.

Note:

22 pages; 3 figures and 2 diagrams prepared with feynmf.mf & feynmf.sty; Invited talk given at: 1st Intl. Conf. on String Phenomenology, Oxford, England, July 6-11, 2002, -and- NeSS 2002, Washington D.C., USA, September 19-21, 2002

talk: Washington 2002/09/19
talk: Oxford 2002/07/06
grand unified theory: SU(5)
supersymmetry
gauge field theory: SU(5) x U(1)
group theory: representation
p: decay modes
p: lifetime
coupling: gauge
numerical calculations

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