نتایج جستجو برای: coulombic interaction
تعداد نتایج: 567140 فیلتر نتایج به سال:
We construct a phenomenological model which describes the dynamical chiral symmetry breaking (DCSB) of QCD vacuum and reproduces meson spectra. Quark condensates, the pion decay constant, and meson spectra are well reproduced by phenomenological interaction which consists of a linear confining potential, a Coulombic potential, and the ’t Hooft determinant interaction. In this model, the ’t Hoof...
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A multi-Higgs model with an extra neutral gauge boson (Z ′) is introduced. One scalar Higgs boson (H 2) in this model decays dominantly into a photon pair. The Z ′ decay to µ + µ − gets a much larger branching ratio than the Z decay to this channel. The ZZ ′ H 2 vertex provides a final state from Z decay resembling the new l + l − γγ events at the LEP. Other promising phenomenology, such as Z →...
We discuss the similarity of constituent monopoles calorons and stable topological solitons with long range Coulombic interaction, classical solutions model particles. In interpretation as electric charges they can be compared to electrons positrons spin up down, quantised charge finite mass.
We consider the quantum dynamics of many bosons systems in the mean field limit with a singular pair-interaction potential, including the attractive or repulsive Coulombic case in three dimensions. By using a measure transportation technique developed in [3], we show that Wigner measures propagate along the nonlinear Hartree flow. Such property was previously proved only for bounded potentials ...
A model for the Fermi contact interaction is proposed in which the nuclear moment is represented as a magnetized spherical shell of radius ro. For a hydrogen-like system thus perturbed, the Schr6dinger equation is solvable without perturbation theory by use of the Coulomb Green's function. Approximation formulas are derived in terms of a quantum defect in the Coulombic energy formula. It is sho...
We have studied the Cabibbo suppressed decay Λc → Σ +K∗0(892) and the Cabibbo favored decays Λc → Σ +K+K−, Λc → Σ +φ and Λc → Ξ ∗0(Σ+K−)K+ and measured their branching ratios relative to Λc → Σ +π+π− to be (7.8 ± 1.8 ± 1.3)%, (7.1 ± 1.1 ± 1.1)%, (8.7 ± 1.6 ± 0.6)% and (2.2 ± 0.6 ± 0.6)%, respectively. The first error is statistical and the second is systematic. We also report two 90% confidence...
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