ar X iv : h ep - p h / 02 06 17 5 v 3 1 4 A ug 2 00 3 Three - body confinement force in a realistic constituent quark model

ar X iv : h ep - p h / 04 08 06 5 v 1 4 A ug 2 00 4 Study of the semileptonic decay

ar X iv : h ep - p h / 02 08 24 2 v 1 2 6 A ug 2 00 2 Nucleon strangeness and spin crisis ?

We summarize three alternative extensions of the quark-valence picture of nucleon strangeness and spin, including (1) gluon spin in QCD, (2) Bjorken sum rule and QCD, (3) D–E meson mixing and tadpole leakage. All three approaches suggest that ∼ 40% of the nucleon’s spin (as well as its momentum) resides with quarks, but that less than 6% is due to strange quarks.

ar X iv : h ep - p h / 06 08 05 0 v 1 4 A ug 2 00 6 Percolation and high energy cosmic rays above 10 17 eV

ar X iv : h ep - p h / 04 06 22 8 v 3 11 A ug 2 00 4 ADP - 04 - 17 / T 599 Spectroscopy of B c Mesons in the Relativized Quark Model

We calculate the spectrum of the charm-beauty mesons using the relativized quark model. Using the wavefunctions from this model we compute the radiative widths of excited cb̄ states. The hadronic transition rates between cb̄ states are estimated using the Kuang-Yan approach and are combined with the radiative widths to give estimates of the relative branching ratios. These results are combined wi...

ar X iv : h ep - p h / 02 08 17 6 v 2 2 3 A ug 2 00 2 A new Supersymmetric SU ( 3 ) L ⊗ U ( 1 ) X gauge model

We present a new supersymmetric version of the SU(3)⊗U(1) gauge model using a more economic content of particles. The model has a smaller set of free parameters than other possibilities considered before. The MSSM can be seen as an effective theory of this larger symmetry. We find that the upper bound of the ligthest CPeven Higgs boson can be moved up to 140 GeV.