1997/07/23 by Rainer Dick, Dick, Rainer
Computer Science · Physics and Astronomy · #Black Holes and Theoretical Physics #Computational Physics and Python Applications #FOS: Physical sciences #High Energy Physics - Theory (hep-th) #Particle physics theoretical and experimental studies #hep-th
paper · pdf · doi:10.48550/arxiv.hep-th/9707195
6 pages, REVTeX (preprint style)
arxiv created 1997/07/23 · openalex publication_date 1997/07/23 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
A particle spectrum below the string scale in accordance with predictions from heterotic string theory yields a Planck mass mPl=(8πGN)-1/2 which exceeds the string scale by a factor ≃ 61.9. A Planck mass mPl=2.43× 1018 GeV then corresponds to a string scale ms=3.9× 1016 GeV. Such a low value for the string scale in turn implies that the relative strength of graviton and vector exchange in the string/M-theory phase exceeds the corresponding ratio in the low energy field theory.