119406100
Energy criterion to select the behavior of dynamical masses in technicolor models
We propose a quite general ansatz for the dynamical mass in technicolor models. We impose on this ansatz the condition that it should lead to the deepest minimum of energy. This criterion selects a particular form of the technifermion self energy.
125867298
Limit on Gamma (pi0 ---> neutrino anti-neutrino) from SN1987A
35333132
Photon-photon and pomeron-pomeron processes in peripheral heavy ion collisions
Instituto de Fisica Teorica Universidade Estadual Paulista, Rua Pamplona, 145, 01405-900, Sao Paulo, SP
3210437
Glueballs in peripheral heavy-ion collisions
Abstract We estimate the cross-section for glueball production in peripheral heavy-ion collisions through two-photon and double-Pomeron exchange, at energies that will be available at RHIC and LHC. Glueballs will be produced at large rates, opening the possibility to study decays with very small branching ratios. In particular, we discuss the possibility of observing the subprocess γγ ( PP ) → G → γγ .
121884739
The strength of trilinear higgs boson coupling in composite models
In this work we discuss the strength of the trilinear Higgs boson coupling in composite models in a model independent way. The coupling is determined as a function of a very general ansatz for the fermionic self-energy, and turns out to be equal or smaller than the one of the Standard Model Higgs boson depending on the dynamics of the theory.
120803068
A limit on the fermion masses in a technicolor scenario
Recently it has been pointed out that no limits can be put on the scale of fermion mass generation (M) in technicolor models, because the relation between the fermion masses (mf) and M depends on the dimensionality of the interaction responsible for generating the fermion mass. Depending on this dimensionality it may happens that mf does not depend on M at all. We show that exactly in this case mf may reach its largest value, which is almost saturated by the top quark mass. We make few comments on the question of how large can be a dynamically generated fermion mass.
55809021
Heptagonic symmetry for quarks and leptons
The non-Abelian discrete symmetry D(7) of the heptagon is successfully applied to both quark and lepton mass matrices, including CP violation.