1994/06/15 by Pran Nath, R. Arnowitt, Nath, Pran +1
Physics and Astronomy · #Black Holes and Theoretical Physics #Cosmology and Gravitation Theories #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #Particle physics theoretical and experimental studies #hep-ph
paper · pdf · doi:10.48550/arxiv.hep-ph/9406314
invited talk at the Conf. on " Unified Symmetry in the Small and in the Large", at Coral Gables, Florida,Jan27-30,94; 9 pages,LaTex+2 figs (hard copies available on request),CERN-TH.7167/94,NUB-TH-3085/94,CTP-TAMU-7/94
arxiv created 1994/06/15 · openalex publication_date 1994/06/15 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
A review is given of recent developments on the implications of supergravity grand unification with SU(5)-type proton decay under the condition MH3 /mG < 10 (where MH3 is the Higgs triplet mass) and the naturalness condition that the universal scalar mass m0 and the gluino mass are < 1~TeV. It is shown that the maximum achievable lifetime limits on proton lifetime at Super Kamiokande and ICARUS will exhaust the full parameter space of the model under the constraint m W1 >~100~GeV. Thus the model predicts the observation of either a light chargino with mass \lappeq~100~GeV , or the observation of a νK+ mode at Super Kamiokande and ICARUS within the above naturalness constraints.Analysis of the b → sγ branching ratio within this model is also discussed. It is shown that there is a significant region of the parameter space where the branching ratio predicted by the model lies within the current experimental bounds. It is pointed out that improved measurements of B(b→ sγ) will significantly delineate the parameter space of the model and allow for a more stringent determination of their allowed ranges.