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New data on deep-inelastic J ψ production by muons show a large inelastic cross section. We show that the energy, Q 2 , and p T dependences of both the elastic and inelastic data are in agreement with the predictions of the photon-gluon-fusion model extended to include higher-order corrections....
Amplitudes are derived for the quantum-chromodynamic subprocess γ g → ( J ψ ) g , with a specific wave function used to represent the J ψ as a c c ¯ system. The results are used to obtain the normalized total cross section σ γ for the inelastic process γ N → ( J ψ ) X , predictions...
The enlarged Higgs sector (i.e., three or more doublets) in the Weinberg-Salam model is studied in a systematic approach. Its CP -violating effects are analyzed in terms of the Higgs-particle-fermion couplings and charged-Higgs-particle masses. The results are compared with those in the...
The rates for the three-body proton decays p → π π e + are related to the rate for the decay p → π 0 e + . This is done by making an ansatz for the form of the three-body amplitude which is consistent with current algebra and with the measured π π final-state interactions. We find that...
We have established a sensitive upper limit on φ φ resonance production by 350-GeV/ c protons incident on a beryllium target. The 90%-confidence-level upper limit varies from 1.5× 10 - 30 cm 2 /nucleon at M φ φ = 2.8 G e V / c 2 to 6.0× 10 - 32 cm 2 /nucleon at M φ φ = 3.4 G e V / c 2 ....
The pattern of CP violation in the bottom sector is discussed. We introduce general techniques to expose new CP -violating effects in the cascade decays of B mesons. In the Kobayashi-Maskawa (KM) model, the CP asymmetries so obtained range from 2-20% for plausible values of the model parameters....
Quark-lepton unification is achieved in a theory based on the gauged symmetry SO ( N ) × SU ( 4 ) × S U L ( 2 ) × S U R ( 2 ) ( N = 6 to 10 ) with no elementary scalar fields. The dynamical breakdown produces right-handed neutrinos with ∼100-TeV Majorana masses. The model displays a...
We compute two-body branching ratios in proton decay in the SU(5) and SO(10) grand unification schemes. Using nonrelativistic approximation for quarks we can obtain algebraic relations between the matrix elements coming from spin-flavor symmetries. The absolute magnitude can be fixed from...
Previous theoretical work has been unable to predict a reliable value for the nuclear parity-violation parameter h ρ ( 1 ) ′ . Using a 1 2 - pole model we estimate the size of this term and demonstrate that it is very unlikely to have a significant effect on theoretical calculations.
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