Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2003-12-15
JHEP 0402 (2004) 037
Physics
High Energy Physics
High Energy Physics - Phenomenology
19 pages, 8 figures, Revtex4
Scientific paper
10.1088/1126-6708/2004/02/037
We examine the Higgs mass parameters and electroweak symmetry breaking in supersymmetric orbifold field theories in which the 4-dimensional Higgs fields originate from higher-dimensional gauge supermultiplets. It is noted that such gauge-Higgs unification leads to a specific boundary condition on the Higgs mass parameters at the compactification scale, which is independent of the details of supersymmetry breaking mechanism. With this boundary condition, phenomenologically viable parameter space of the model is severely constrained by the condition of electroweak symmetry breaking for supersymmetry breaking scenarios which can be realized naturally in orbifold field theories. For instance, if it is assumed that the 4-dimensional effective theory is the minimal supersymmetric standard model with supersymmetry breaking parameters induced mainly by the Scherk-Schwarz mechanism, a correct electroweak symmetry breaking can not be achieved for reasonable range of parameters of the model, even when one includes additional contributions to the Higgs mass parameters from the auxiliary component of 4-dimensional conformal compensator. However if there exists a supersymmetry breaking mediated by brane superfield, sizable portion of the parameter space can give a correct electroweak symmetry breaking.
Choi Kiwoon
Haba Naoyuki
Jeong Kwang-Sik
Okumura Ken'ichi
Shimizu Yasuhiro
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