Four-Generation Condensate Scheme Without the Fourth Generation of Leptons |
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Authors: | ZHOU Bangrong |
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Institution: | 1. Departmet of Physics, The Graduate School at Beijing, University of Science and Technology of China, Academic Sinica, Beijing 100039, China;
2. CCAST(World Laboratory), P. O. Box 8730, Beijing 100080, China |
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Abstract: | The renormalization group (RG) analyses show that in the four-generation fermion condensate scheme of electroweak symmetry breaking without the extra fourth generation of leptons thelimitation to the compositeness scale Λ could be greatly loosened and up to Λ<1010 GeV if the masses of the extra fourth generation of quarks are demanded to be bigger than the topquark mass mt = 180 GeV. However, the mass constraints 2(mQ)minh0<2(mQ)max between the Higgs boson h0 and its constituent Q-fermions are no longer totally valid for Λ>105 GeV. The ~redicted masses of the fourth generation of quarks and the Higgs boson will be larger than the corresponding ones in the four-generation quark-lepton scheme. The stability of the results for variation of the compositeness boundary conditions could be explained more clearly. |
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