The hard core Yukawa system, consisting of particles with an impenetrable core and interacting via a repulsive Yukawa pair potential, is known to solidify either in a bcc or fcc crystal. Using optimization strategies based on genetic algorithms we give evidence that at zero temperature an additional centred tetragonal phase structure in the range of high packing fractions emerges.

Abstract In this work, we present a phenomenological study of the complete analytical solution to bound eigenstates and eigenvalues Yukawa potential obtained previously using hidden supersymmetry system systematic expansion in terms ? = 0 ?D, where is Bohr radius D screening length. The eigenvalues, ?nl(?), are given form Taylor series which can be systematically calculated desired order ?k. Co...

Abstract In this article, the linear plus modified Yukawa potential (LIMYP) is used as quark-antiquark interaction for approximate analytical bound state solution of Klein-Gordon equation in three-dimensional space. The energy eigenvalues and associated wavefunction are obtained by solving analytically using Nikiforov-Uvarov (NU) method. mass spectra heavy mesons such charmonium <?CDATA $(c\bar...

In multi-Higgs-doublet models the alignment in flavor space of the relevant Yukawa matrices guarantees the absence of tree-level flavor-changing couplings of the neutral scalar fields. We analyze the consequences of this condition within the two-Higgs-doublet model and show that it leads to a generic Yukawa structure which contains as particular cases all known specific implementations of the m...

In multi-Higgs-doublet models the alignment in flavour space of the relevant Yukawa matrices guarantees the absence of tree-level flavour-changing couplings of the neutral scalar fields. We analyze the consequences of this condition within the two-Higgs-doublet model and show that it leads to a generic Yukawa structure which contains as particular cases all known specific implementations of the...