TY - JOUR
T1 - Non-canonical gauge coupling unification in high-scale supersymmetry breaking
AU - Barger, V.
AU - Jiang, Jing
AU - Langacker, Paul
AU - Li, Tianjun
N1 - Funding Information:
This research was supported by the US Department of Energy under Grants No. DE-FG02-95ER40896, DE-FG02-96ER40969 and DOE-EY-76-02-3071, by the National Science Foundation under Grant No. PHY-0070928, and by the University of Wisconsin Research Committee with funds granted by the Wisconsin Alumni Research Foundation.
PY - 2005/10/17
Y1 - 2005/10/17
N2 - The string landscape suggests that the supersymmetry breaking scale can be high, and then the simplest low energy effective theory is the Standard Model (SM). Considering grand unification scale supersymmetry breaking, we show that gauge coupling unification can be achieved at about 1016-17 GeV in the SM with suitable normalizations of the U(1)Y, and we predict that the Higgs mass range is 127 to 165 GeV, with the precise value strongly correlated with the top quark mass mt and SU (3)C gauge coupling. For example, if mt ± 1 GeV, the Higgs boson mass is predicted to be between 141 and 154 GeV. We also point out that gauge coupling unification in the Minimal Supersymmetric Standard Model (MSSM) does not imply the canonical U(1)Y normalization. In addition, we present 7-dimensional orbifold grand unified theories (GUTs) in which such normalizations for the U(1)Y and charge quantization can be realized. The supersymmetry can be broken at the grand unification scale by the Scherk-Schwarz mechanism. We briefly comment on a non-canonical U(1)Y normalization due to the brane localized gauge kinetic terms in orbifold GUTs.
AB - The string landscape suggests that the supersymmetry breaking scale can be high, and then the simplest low energy effective theory is the Standard Model (SM). Considering grand unification scale supersymmetry breaking, we show that gauge coupling unification can be achieved at about 1016-17 GeV in the SM with suitable normalizations of the U(1)Y, and we predict that the Higgs mass range is 127 to 165 GeV, with the precise value strongly correlated with the top quark mass mt and SU (3)C gauge coupling. For example, if mt ± 1 GeV, the Higgs boson mass is predicted to be between 141 and 154 GeV. We also point out that gauge coupling unification in the Minimal Supersymmetric Standard Model (MSSM) does not imply the canonical U(1)Y normalization. In addition, we present 7-dimensional orbifold grand unified theories (GUTs) in which such normalizations for the U(1)Y and charge quantization can be realized. The supersymmetry can be broken at the grand unification scale by the Scherk-Schwarz mechanism. We briefly comment on a non-canonical U(1)Y normalization due to the brane localized gauge kinetic terms in orbifold GUTs.
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U2 - 10.1016/j.nuclphysb.2005.08.007
DO - 10.1016/j.nuclphysb.2005.08.007
M3 - Article
AN - SCOPUS:25144501639
SN - 0550-3213
VL - 726
SP - 149
EP - 170
JO - Nuclear Physics B
JF - Nuclear Physics B
IS - 1-2
ER -