Implications of heavy top
نویسندگان
چکیده
منابع مشابه
The Significance of the Heavy Top Quark
Experiment shows that the top quark is far heavier than the other elementary fermions. This finding has stimulated research on theories of electroweak and flavor symmetry breaking that include physics beyond the standard model. Efforts to accommodate a heavy top quark within existing frameworks have revealed constraints on model-building. Other investigations have started from the premise that ...
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Introduction: This study aimed to assess a good protocol for the contamination indexes, concentration, spatial analysis, and source identification of toxic metals in top soils. Materials and Methods: In the first step, samples were taken from top soil (30 cm) and the metals were extracted and detected with ICP-AES. In the second step, Enrichment Factor, Geoaccumulation Index, and Contamination...
متن کاملTop quark decays into heavy quark mesons.
For top quark decays into heavy quark mesons Υ and B̄ c , a complete calculation to the leading order both in QCD coupling constant αs and in v, the typical velocity of the heavy quarks inside the mesons, is performed. Relatons between the top quark mass and the decay branching ratios are studied. Comparion with the results which are obtained by using the quark frangmentation functions is also d...
متن کاملDynamical Flavor Hierarchy and Heavy Top
In the Standard Model one of the generations is much heavier than the other two. We propose a simple mechanism where all three generations are treated on the equal footing to begin with, and one heavy and two light families emerge from supersymmetric strong dynamics. The Yukawa mass matrix is identified with vevs of the meson fields of some additional gauge theory. It is then forced to have ran...
متن کاملThe Heavy Top Quark and Supersymmetry * † Disclaimer
Three aspects of supersymmetric theories are discussed: electroweak symmetry breaking, the issues of flavor, and gauge unification. The heavy top quark plays an important, sometimes dominant, role in each case. Additional symmetries lead to extensions of the standard model which can provide an understanding for many of the outstanding problems of particle physics. A broken supersymmetric extens...
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ژورنال
عنوان ژورنال: Surveys in High Energy Physics
سال: 1996
ISSN: 0142-2413,1477-2892
DOI: 10.1080/01422419608223780