QCD with two flavours of massless colour-sextet quarks is considered as a model for conformal/walking Technicolor. If this theory possess an infrared fixed point, as indicated by 2-loop perturbation theory, it is a conformal(unparticle) field theory. If, on the other hand, a chiral condensate forms [...]
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We determine the prospects for finding dark matter at the Tevatron and LHC through the production of exotic 4th generation mirror quarks T that decay through T t X, where X is dark matter. The resulting signal of t [`t] + \met has not previously been considered in searches for 4th generation [...] The discovery of a Higgs particle is possible in a variety of search channels at the LHC. However, the true identity of any putative Higgs boson will, at first, remain ambiguous until one has experimentally excluded other possible assignments of quantum numbers and couplings. We quantify the degree [...] The prototypical Casimir effect arises when a scalar field is confined between parallel Dirichlet boundaries. We study corrections to this when the boundaries themselves have apertures and edges. We consider several geometries: a single plate with a slit in it, perpendicular plates separated by a [...] The early part of the gravitational wave signal of binary neutron star inspirals can potentially yield robust information on the nuclear equation of state. The influence of a star’s internal structure on the waveform is characterized by a single parameter: the tidal deformability l, which measures [...] Alternative cosmologies, based on extensions of General Relativity, predict modified thermal histories in the Early Universe during the pre Big Bang Nucleosynthesis (BBN) era, epoch which is not directly constrained by cosmological observations. When the expansion rate is enhanced with respect to [...] We consider slow-roll inflation for a single scalar field with an arbitrary potential and an arbitrary non-minimal coupling to the Gauss-Bonnet term. By introducing a combined hierarchy of Hubble and Gauss-Bonnet flow functions, we analytically derive the power spectra of scalar and tensor [...] Author(s): S. Peter Gary, Shinji Saito, and Yasuhito Narita Author(s): M. E. Gonzalez, R. Dib, V. M. Kaspi, P. M. Woods, C. R. Tam, and F. P. Gavriil Author(s): Eric Keto and George Rybicki |
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