1995/10/06 by J. Ellis, John Ellis, J. Lopez +3 · 1 citation
Physics and Astronomy · #Channel (broadcasting) #Computation #Mode (computer interface) #Nuclear physics research studies #Observable #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #Range (aeronautics) #Value (mathematics) #hep-ph #hep-th
paper · pdf · doi:10.1016/0370-2693(95)01589-2
published as Phys.Lett.B371:65-70,1996 · 11 pages, LaTeX, 2 figures (uuencoded)
arxiv created 1995/10/06 · openalex publication_date 1996/03/01 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We show that the prediction for αs(MZ) in flipped SU(5) is naturally lower than in minimal SU(5), and that the former can accommodate the full range of αs(MZ) presently allowed by experiment. Our computations include two-loop (δ\rm 2loop) and light (δ\rm light) and heavy (δ\rm heavy) threshold effects. Unlike minimal SU(5), in flipped SU(5) the heavy threshold effects can naturally decrease the predicted value of αs(MZ). We also show that the value of the proton lifetime into the dominant channel p→ e+π0 is within the observable range at SuperKamiokande, and should discriminate against minimal supersymmetric SU(5), where the dominant mode is p→νK+.