Deconstruction of unparticles
نویسندگان
چکیده
منابع مشابه
Unparticles and Muon Decay
Recently Georgi has discussed the possible existence of ‘Unparticles’ describable by operators having non-integral scaling dimensions. With the interaction of these with the Standard Model (SM) particles being constrained only by gauge and Lorentz symmetries, it affords a new source for lepton flavour violation. Current and future muon decay experiments are shown to be very sensitive to such sc...
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We discuss the physical interpretation of unparticles and review the constraints from cosmology. Unparticles may be understood in terms of confined states of a strongly-coupled scale-invariant theory, where scale-invariance implies that the confined states have continuous masses. This picture is consistent with the observation that unparticle operators can be represented in terms of continuous ...
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متن کاملPhantom Higgs from Unparticles
A renormalizable coupling between the Higgs and a scalar unparticle operator OU of non-integer dimension dU < 2 gives rise, after electroweak symmetry breaking, to a mass gap in the unparticle continuum and a shift in the original Higgs mass, which can end up above or below the mass gap. We show that, besides the displaced Higgs state, a new isolated state can generically appear in the spectrum...
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We study the cosmological constraints on unparticle interactions and the temperature of the Universe for an unparticle sector with dimensional transmutation scale ΛU > ∼ 1 TeV. By considering thermal background quark decay to unparticles via a scalar operator of dimension dU , we show that the condition that the Universe is not dominated by unparticles at nucleosynthesis imposes a lower bound o...
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ژورنال
عنوان ژورنال: Physical Review D
سال: 2007
ISSN: 1550-7998,1550-2368
DOI: 10.1103/physrevd.76.035008