The H dihyperon (DH) is studied in the framework of the SU(3) chiral quark model. It is shown that except the σ chiral field, the overall effect of the other SU(3) chiral fields is destructive in forming a stable DH. The resultant mass of DH in a three coupled channel calculation is ranged from 2225 M eV to 2234 M eV .

Recent progress in cosmic ray physics covering the energy range from about 10 eV to 10 eV is reviewed. The most prominent features of the energy spectrum are the so called ‘knee’ at E ≃ 3 · 10 eV and the ‘ankle’ at few 10 eV. Generally, the origin of the knee is understood as marking the limiting energy of galactic accelerators and/or the onset of increasing outflow of particles from the galaxy...

We study the effect of wave function orthogonality in the rela-tivistic treatment of the nucleon removal reactions (γ, p) and (e, e ′ p). The continuum wave function describing the outgoing nucleon is made orthogonal to the relevant bound states using the Gram-Schmidt procedure. This procedure has the advantage of preserving the asymp-totic character of the continuum wave function and hence the...

With the increase in number of electric vehicles (EVs) and developments their related charging infrastructures, consumers have still some concerns about limiting factors EV industry such as battery life, station availability, grid capacity, limited driving range, slow batteries. Although solutions are proposed for these limitations, they not sufficiently efficient cost-effective. Moreover, EVs ...

introduction: sexhormones are one of most important factors in difference of learning and memory between tow sexes (male & female). high concentration of estrogen and androgen receptors and mechanism of testosterone and estrogen production in learning and memory center, especially in hippocampus show the role of this receptors, sexhormons and p450 enzymes in spatial memory. consequently, in thi...