We study the static shape of charged drops of a conducting fluid placed over a solid substrate, surrounded by a gas, and in absence of gravitational forces. The question can be formulated as a variational problem where a certain energy involving the areas of the solid-liquid interface and of the liquid-gas interface, as well as the electric capacity of the drop, has to be minimized. As a functi...

Flavor SU(3) symmetry breaking in the hyperon semileptonic decay formfactors is analyzed using the 1/Nc expansion. A detailed comparison with experimental data shows that corrections to f1 are approximately 10%, which agrees with theoretical expectations. Corrections to g1 are compatible with first-order symmetry breaking. A fit to the experimental data allows one to predict the g1 form factor ...

We use three-point function QCD sum rules to calculate the form factor A0(q 2) appearing in the matrix element of the flavour-changing axial current between the D(B) state and a vector meson state. We describe the role of this form factor in nonleptonic D(B) → PV decays and analyze the light SU(3)F symmetry breaking effects. We also discuss a proposal to relate the branching ratio of B → Kγ to ...

As it is well known, symmetry plays a crucial role in the theoretical physics. On other hand, the Noether symmetry is a useful procedure to select models motivated at a fundamental level, and to discover the exact solution to the given lagrangian. In this work, Noether symmetry in f(T) theory on a spatially homogeneous and anisotropic Bianchi type I universe is considered. We discuss the Lagran...

Isomorphism is an equivalence relation that is less stringent than identity (equality), and it is useful for synthetic analysis, since it allows one to find reflexive routes for targets even when they do not have an element of symmetry.

We present a six-dimensional Higgsless Standard Model with a realistic gauge sector. The model uses only the Standard Model gauge group SU(2)L × U(1)Y with the gauge bosons propagating in flat extra dimensions compactified on a rectangle. The electroweak symmetry is broken by boundary conditions, and the correct splitting between the W and Z gauge boson masses can be arranged by suitable choice...

The elongation and enlargement of the coronoid processes in Coronoid Hyperplasia (CH) are caused by an overgrowth of normal mature bone. The main clinical feature in unilateral cases may not be reduction in mandibular opening but rather progressive facial asymmetry, a mobile lump above the zygomatic arch or mandibular deviation to the affected side during opening. In current report, we are pres...

We present a six-dimensional Higgsless Standard Model with a realistic gauge sector. The model uses only the Standard Model gauge group SU(2)L × U(1)Y with the gauge bosons propagating in flat extra dimensions compactified on a rectangle. The electroweak symmetry is broken by boundary conditions and the correct splitting between the W and Z gauge boson masses can be arranged by suitable choice ...

We investigate the helicity dependent twist-two and twist-three generalized parton distributions in light-front Hamiltonian QCD for a massive dressed quark target. Working in the kinematical region ξ < x < 1, we obtain the splitting functions for the evolutions of twist-two quark and gluon distributions in a straightforward way. For the twist-three distribution, we find that all contributions a...

Two outstanding questions in particle theory are the cause of electroweak symmetry breaking and the origin of the masses and mixings of the fermions. Because theories that use light, weakly-coupled scalar bosons to answer these questions suffer from the hierarchy and triviality problems, it is interesting to consider the possibility that electroweak symmetry breaking arises from strong dynamics...