The pf-shell (i.e. the 2p 1 2 -2p 3 2 -1f 5 2 shell) is important for a variety of problems in nuclear structure, however, the study of this shell has been hindered by the huge size of the shell model space. In recent years there have been studies by using the Monte-Carlo shell model [1] and that based on the pseudo-SU(4) symmetry model [2]. The original Wigner Supermultiplet SU(4) model[3] is ...

Adresa za dopisivanje Moataz F. El Gezawi Professor, Restorative Dentistry, Cairo University Associate Professor University of Dammam P.O.Box: 76147, Alkhobar 31952 Saudi Arabia telefon: + 966 3 857 4928 ext 117 faks: +966 3 814 1099 [email protected] Sažetak Svrha: Ovo in vitro istraživanje provedeno je na maksilarnim pretkutnjacima kako bi se procijenili mikropropusnost i otpornost kv...

Haraz-Ghareh Su is one of the seven sub-basins of the Caspian basin, located on the southern shores of the Caspian Sea, and as such, is in danger of water crisis due to absence of proper systematic policy and strategy. In this study, the pressure factors on the Haraz-Ghareh Su water resources were identified using DPSIR model. Then, the pressure parameters on the freshwater resources in the Cas...

According to current models of retrovirus infection, receptor binding to the surface subunit (SU) of the envelope glycoprotein (Env) triggers a conformational change in the transmembrane subunit (TM) that mediates virus fusion to cell membranes. To understand how this occurs, we investigated the role of the receptor Tva in avian leukosis virus-A (ALV-A) infection. We find that Tva binding induc...

We deconstruct the non-supersymmetric SU(5) breaking by discrete symmetry on the space-time M4×S1 and M×S/(Z2×Z ′ 2) in the Higgs mechanism deconstruction scenario. And we explain the subtle point on how to exactly match the continuum results with the latticized results on the quotient space S/Z2 and S /(Z2 ×Z ′ 2). We also propose an effective deconstruction scenario and discuss the gauge symm...

Spin-orbital entanglement in the ground state of a one-dimensional SU(2)⊗SU(2) spin-orbital model is analyzed using exact diagonalization of finite chains. For S = 1/2 spins and T = 1/2 pseudospins one finds that the quantum entanglement is similar at the SU(4) symmetry point and in the spin-orbital valence bond state. We also show that quantum transitions in spin-orbital models turn out to be ...

We show a general formula of the one loop effective potential of the 5D SU(N) gauge theory compactified on an orbifold, S/Z2. The formula shows the case when there are fundamental, (anti-)symmetric tensor and adjoint representational bulk fields. Our calculation method is also applicable when there are bulk fields belonging to higher dimensional representations. The supersymmetric version of th...

A method based on flavour SU(3) is proposed for identifying and extracting New Physics (NP) amplitudes in charmless ∆S = 1 Bs decays using time-dependent CP asymmetries in these decays and in flavour SU(3) related ∆S = 0 decays. For illustration, we assume a hierarchy, ∼ 1 : λ : λ (λ = 0.2), between a dominant ∆S = 1 penguin amplitude, a NP amplitude and a Standard Model amplitude with weak pha...

The quark and charged lepton masses and the angles and phase of the CKM mixing matrix are nicely reproduced in a model which assumes SU (3) ⊗ SU (3) flavour symmetry broken by the v.e.v.'s of fields in its bi-fundamental representation. The relations among the quark mass eigenvalues, m u /m c ≈ m c /m t ≈ m 2 d /m 2 s ≈ m 2 s /m 2 b ≈ Λ 2 GUT /M 2 Pl , follow from the broken flavour symmetry. L...