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42 papers · 1 filter
Cosmological particle production and generalized thermodynamic equilibrium
Winfried Zimdahl
With the help of a conformal, timelike Killing-vector we define generalized equilibrium states for cosmological fluids with particle production. For massless particles the generali…
Heavy charged Higgs boson decaying into top quark in the MSSM
J. A. Coarasa, David Garcia, Jaume Guasch +2
Observing a heavy charged Higgs boson produced in the near future at the Tevatron or at the LHC would be instant evidence of physics beyond the Standard Model. Whether such a Higgs…
The Mixing Angle Revisited
A. Bramon, R. Escribano, M. D. Scadron
The value of the mixing angle is phenomenologically deduced from a rather exhaustive and up-to-date analysis of data including strong decays of tensor and higher-spin…
Updated measurement of the tau lepton lifetime
The ALEPH Collaboration
A new measurement of the mean lifetime of the tau lepton is presented. Three different analysis methods are applied to a sample of 90000 tau pairs, collected in 1993 and 1994 with…
Dissipative fluids out of hydrostatic equilibrium
L. Herrera, J. Martinez
In the context of the Müller-Israel-Stewart second order phenomenological theory for dissipative fluids, we analyze the effects of thermal conduction and viscosity in a relativisti…
Two-loop QCD corrections to charged-Higgs-mediated decay
P. Ciafaloni, A. Romanino, A. Strumia
The charged-Higgs-mediated contribution to the Wilson coefficient of the magnetic penguin is expected to be one of the more promising candidates for a supersymmetric effe…