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Split-SUSY versus SUSY GUTs
Author(s) -
Naoyuki Haba,
Nobuchika Okada
Publication year - 2006
Publication title -
progress of theoretical physics
Language(s) - English
Resource type - Journals
eISSN - 1347-4081
pISSN - 0033-068X
DOI - 10.1143/ptp.116.757
Subject(s) - physics , gaugino , supersymmetry , particle physics , grand unified theory , unification , supersymmetry breaking , scalar (mathematics) , context (archaeology) , gauge (firearms) , theoretical physics , history , paleontology , geometry , mathematics , archaeology , computer science , biology , programming language
The gauge coupling unification is one of main motivations in the split-SUSYscenario, and the existence of the grand unified theories (GUTs) is assumed. Weexamine how to realize split-SUSY mass spectrum in the context of GUTs and findthat the construction of split-SUSY GUTs is by no means straightforward. WithR-symmetry breaking sources in the GUT sector, GUT particles play a role of the messengers in the gauge mediation scenarioand their contributions to gaugino masses can be sizable. We find the upperbound on soft scalar masses of O(10^{10}) GeV from consistency for constructing the split-SUSY GUT. Also, wediscuss the attempt to construct R-symmetric GUT models.Comment: 13 page

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