The 'lep Paradox'
نویسندگان
چکیده
Is there a Higgs? Where is it? Is supersymmetry there? Where is it? By discussing these questions, we call attention to the ‘LEP paradox’, which is how we see the naturalness problem of the Fermi scale after a decade of electroweak precision measurements, mostly done at LEP. Is it wise to spend time in reviewing a subject, which can be summarized in one sentence: neither the Higgs nor supersymmetry have been found so far? Admittedly the question makes sense. For sure these topics are crucial to the central problem of particle physics: the ElectroWeak symmetry breaking. Our main motivation here is, however, more specific. We want to bring the focus on what we like to call the ‘LEP paradox’. By this we mean the way several years of (mostly) LEP results [1] make us see the old and well known naturalness problem of the Fermi scale. The questions we address, in logical order, are: 1. Is there a Higgs? 2. If yes, where is it? 3. Is there supersymmetry? 4. If yes, where is it? All of these questions, as well as their answers, have to do with the ‘LEP paradox’ that was just mentioned.
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