Relativistic Massive Vector Condensation

At sufficiently high chemical potential massive relativistic spin one fields condense. This phenomenon leads to the spontaneous breaking of rotational invariance while linking it to the breaking of internal symmetries. We study the relevant features of the phase transition and the properties of the generated Goldstone excitations. The interplay between the internal symmetry of the vector fields and their Lorentz properties is studied. We predict that new phases set in when vectors condense in Quantum Chromodynamics like theories.Comment: RevTeX, 8 page

Multipion decays of omega(782) and phi(1020)

Using the chiral model of pseudoscalar, vector, and axial vector mesons based on the hidden local symmetry added with the terms induced by the Wess-Zumino anomaly, the results of calculations of the branching fractions of the decays omega(782) and phi(1020) mesons to the 2pi+ 2pi- pi0, pi+ pi -3pi0 multipion states are presented.Comment: 4 pages. Talk presented by A.A. Kozhevnikov at the International Workshop "e+e- Collisions from Phi to Psi", February 27-March 2, 2006, BINP, Novosibirsk, Russian Federatio

Generalized diamond-alpha dynamic opial Inequalities

We establish some new dynamic Opial-type diamond alpha inequalities in time scales. Our results in special cases yield some of the recent results on Opial\u27s inequality and also provide new estimates on inequalities of this type. Also, we introduce an example to illustrate our result

Hyperon Beta-Decay and Axial Charges of the Lambda in view of Strongly Distorted Baryon Wave-Functions

Within the collective coordinate approach to chiral soliton models we suggest that breaking of SU(3) flavor symmetry mainly resides in the baryon wave-functions while the charge operators maintain a symmetric structure. Sizable symmetry breaking in the wave-functions is required to reproduce the observed spacing in the spectrum of the (1/2)^+ baryons. The matrix elements of the flavor symmetric charge operators nevertheless yield g_A/g_V ratios for hyperon beta-decay which agree with the empirical data approximately as well as the successful F&D parameterization of the Cabibbo scheme. Demanding the strangeness component in the nucleon to vanish in the two flavor limit of the model, determines the structure of the singlet axial charge operator and yields the various quark flavor components of the axial charge of the \Lambda-hyperon. The suggested picture gains support from calculations in a realistic model using pion and vector meson degrees of freedom to build up the soliton.Comment: 14 pages, minor revisions, paper accepted for publication in Nucl. Phys.

Bilge Hapcioglu, Yildiz Yegenoglu, Rian Disci, Zayre Erturan and Hande Kaymakcalan

The purpose of this study is to determine the prevalence of tinea pedis and onychomycosis in children of elementary school age and to examine the socio-demographic attributes that may be effective in correlation of both mycoses. 3,390 female and 3,768 male children between ages 6–14 have been examined in seven schools. Skin scrapings and nail samples were taken from 13 students who were suspected to have tinea pedis and from 49 students who were suspected to have onychomycosis. According to direct microscopy (10–15% KOH+calcofluor white) and culturel examination (Sabouraud dextrose agar and dermatophyte test medium) 11 students were diagnosed as tinea pedis and 24 were diagnosed as onychomycosis. Trichophyton rubrum was isolated in 3 students with tinea pedis whose culture was positive and five Candida albicans, five Candida glabrata and one Candida tropicalis cases were isolated from 11 samples with onychomycosis. Tinea pedis prevalence has been found to be 3.3%0. Differences between onychomycosis prevalence based on age have been found to be significant (p<0.001). In conclusion, it has been determined that the prevalence of tinea pedis and onychomycosis among children is low. Candida spp. was isolated from all of the 14 samples diagnosed as onychomycosis. Our study shows similar results with previous studies done in Turkey and that Trichophyton rubrum continues to be the most isolated agent

ρ→4π\rho\to 4\pi DECAY

The decay modes $\rho^0 \to 2\pi^+ 2\pi^-$ and $\rho^0 \to 2\pi^0 \pi^+ \pi^-$ are considered in the framework of the low energy effective chiral Lagrangian. The obtained values of the decay widths $\Gamma(\rho^0\to 2 \pi^+ 2 \pi^-)=$ $(16 \pm 1){\rm keV}$ and $\Gamma(\rho^0\to 2 \pi^0 \pi^+ \pi^-)= (6.0 \pm 0.2)$keV do not contradict the existing upper limits and seem to be big enough for the corresponding processes to be observed in future high luminosity experiments.Comment: 6 pages, LaTeX, without figure. Submitted to Phys. Lett.

Non-Abelian Anomalies and Effective Actions for a Homogeneous Space G/HG/H

We consider the problem of constructing the fully gauged effective action in $2n$-dimensional space-time for Nambu-Goldstone bosons valued in a homogeneous space $G/H$, with the requirement that the action be a solution of the anomalous Ward identity and be invariant under the gauge transformations of $H$. We show that this can be done whenever the homotopy group $\pi_{2n}(G/H)$ is trivial, $G/H$ is reductive and $H$ is embedded in $G$ so as to be anomaly free, in particular if $H$ is an anomaly safe group. We construct the necessary generalization of the Bardeen counterterm and give explicit forms for the anomaly and the effective action. When $G/H$ is a symmetric space the counterterm and the anomaly decompose into a parity even and a parity odd part. In this case, for the parity even part of the action, one does not need the anomaly free embedding of $H$.Comment: revise