A brief review of some topics in hadron production from heavy ion collisions is given. They include charged pion ratio as a probe nuclear symmetry energy, in-medium effects on production, en- hanced Λ c / D 0 ratio, local polarization, and X (3872) production.

In this talk I summarize our recent works on the chiral symmetry restoration in the large flavor QCD using the hidden local symmetry (HLS) as an effective field theory of QCD. Bare parameters in the HLS are determined by matching the HLS with QCD at the matching scale through the Wilsoninan matching conditions. This Wilsonian matching leads to the vector manifestation of the Wigner realization ...

Different kinds of reduction for ordinary differential equations, such as λ –symmetry and σ reductions, are recovered particular cases Frobenius theorem distribution vector fields. This general approach provides some hints to tackle the reconstruction problem solve it under suitable assumptions on involved in process.

Based on thermal equilibrium between the vacuum and its relevant excita-tions a model for cosmic inflation is presented. As far as the vacuum structure is concerned the model is entirely classical. Due to a U(1) gauged inflaton field an inflationary regime can be reached without explicitly imposing slow-roll conditions. Thereby, nontrivial euclidean BPS saturation of the inflaton effectively su...

Using the known experimental data for the hyperon semileptonic decay constants, we calculate integrated quark densities ∆qΛ and ∆ΣΛ for the hyperon Λ with flavor SU(3) symmetry breaking taken into account. Symmetry breaking is implemented with the help of the chiral quark-soliton model in an approach, in which the dynamical parameters are fixed by the experimental data for six hyperon semilepto...

We present a scale invariant extension of the standard model with a new QCD-like strong interaction in the hidden sector. A scale Λ(H) is dynamically generated in the hidden sector by dimensional transmutation, and chiral symmetry breaking occurs in the hidden sector. This scale is transmitted to the SM sector by a real singlet scalar messenger S and can trigger electroweak symmetry breaking. T...

In the extra dimensional scenarios with gauge fields in the bulk, the KaluzaKlein (KK) gauge bosons can induce Nambu-Jona-Lasinio (NJL) type attractive fourfermion interactions, which can break electroweak symmetry dynamically with accompanying composite Higgs fields. We consider a possibility that electroweak symmetry breaking (EWSB) is triggered by both a fundamental Higgs and a composite Hig...

The triviality of the scalar sector of the standard one-doublet Higgs model implies that this model is only an effective low-energy theory valid below some cutoff scale Λ. We show that the experimental constraint on the amount of custodial symmetry violation implies that the scale Λ must be greater than of order 7.5 TeV. The underlying high-energy theory must also include flavor dynamics at a s...

We develop algebraic methods for finding loop corrections to the N = 4 SYM dilatation generator, within the noncompact psu(1, 1|2) sector. This sector gives a ’t Hooft coupling λ-dependent representation of psu(1, 1|2)× psu(1|1)2. At first working independently of the representation, we present an all-order algebraic ansatz for the λ-dependence of this Lie algebra’s generators. The ansatz solve...

For linear partial differential equations, there exist well-developed classical methods of their analytical solution, which, in particular, includes the separation of variables, different integral transforms, Fourier series and their generalizations. At the same time, the study of symmetry properties of such equations is important, first of all, for the development of methods of symmetry analys...