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The weak magnetic dipole moment of the τ-lepton is reviewed. Standard Model predictions and the last experimental results are presented. These may result in a stringent test for both their point-like structure and also for new physics. © ; 1998 American Institute of Physics.
Recent data on precision tests of the standard model at LEP are presented and compared with the theoretical expectations. These results are obtained by a preliminary analysis of all the data collected at LEP between 1990 and 1995. The most recent LEP2 measurements of the W mass, of fermion pair...
We compute the amount of inflation required to solve the horizon problem of cosmology in the pre-big-bang scenario. First we give a quick overview of string cosmology as developed by Veneziano and collaborators. Then we show that the amount of inflation in this background solves the horizon...
Assuming a new interaction with a θ term for the third generation of quarks, a value of θ different from zero dynamically induces the top-bottom mass splitting and a large CP-violating phase. © ; 1998 American Institute of Physics.
We consider the implementation of CP violation in the context of 331 models. In particular we treat a model where only three scalar triplets are needed in order to give all fermions a mass while keeping neutrino massless. In this case all CP violation is provided by the scalar sector. © ; 1998...
We reanalize a solvable model proposed by Friedberg, Lee, Pang and Ren (FLPR) 1 with special emphasis on the space of gauge orbits and the path integral approach. © ; 1998 American Institute of Physics.
We report a measurement of the x F and P T Λ; 0 polarization dependence; Λ; 0 ’s were produced in the specific channels; ; pp→pΛ; 0 K + π; + π; -; , pp→pΛ; 0 K + π; + π; -; π; + π; -; , pp→pΛ; 0 K + π; + π; -; π; + π; -; π; + π; -; , and pp→pΛ; 0 K + π; + π; -; π; +...
We give a new solution to the requirement of two-loop finiteness of the soft supersymmetry breaking terms (SSB) in Finite-Gauge-Yukawa unified theories, which has the form of a sum rule for the scalar masses. Using this sum rule we investigate two promising models and determine their spectrum in...
Starting from Noether’s charges we derive an expression for new conserved quantities which extend the algebra of the original group of transformations. © ; 1998 American Institute of Physics.