Rare z decays and noncommutative theories

Yüce, Cem
Leptonic decay modes of Z-boson constitute one of the important class of the decays for checking predictions and improving parameters of the standard model. In next generation of the accelerators, it will be produced more than 10̂8 Z-boson pear year. Therefore, It appears real possibility to analyze the rare decays of Z, which are absent at tree level in standard model. Moreover, the rare decays are quite sensitive to the existence of new physics beyond the standard model. One of the possible source for the new physics is noncommutative theories (NC). Noncommutative theories have rich phenomenological implications due to the appearance of new interactions, which are forbidden in standard model. In this thesis, we examine the Z Þ


Studies on the generalized and reverse generalized bessel polynomials
Polat, Zeynep Sonay; Taşeli, Hasan; Department of Mathematics (2004)
The special functions and, particularly, the classical orthogonal polynomials encountered in many branches of applied mathematics and mathematical physics satisfy a second order differential equation, which is known as the equation of the hypergeometric type. The variable coefficients in this equation of the hypergeometric type are of special structures. Depending on the coefficients the classical orthogonal polynomials associated with the names Jacobi, Laguerre and Hermite can be derived as solutions of th...
Thermal and optical properties of two molecular potentials
Eshghi, Mahdi; Sever, Ramazan; Ikhdair, Sameer M. (Springer Science and Business Media LLC, 2019-04-01)
We solve the Schrodinger wave equation for the generalized Morse and cusp molecular potential models. In the limit of high temperature we, first, need to calculate the canonical partition function which is basically used to study the behavior of the thermodynamic functions. Based on this, we further calculate the thermodynamic quantities, such as the free energy, the entropy, the mean energy and the specific heat. Their behavior with the temperature has been investigated. In addition, the susceptibility for...
Genetic algorithm-Monte Carlo hybrid geometry optimization method for atomic clusters
Dugan, Nazim; Erkoç, Şakir (Elsevier BV, 2009-03-01)
In this work, an evolutionary type global optimization method for identifying the stable geometries of atomic clusters is developed and applied to carbon clusters for testing purpose. Monte Carlo (MC) type local optimization is used between genetic algorithm (GA) steps together with a special Mutation operation designed for the Cluster geometry optimization problem. Cluster geometries and the corresponding potential energies for carbon obtained with this GA-MC hybrid method are compared with available resul...
Analytical solution of the Schrodinger equation for Makarov potential with any l angular momentum
Bayrak, O.; Karakoc, M.; Boztosun, I.; Sever, Ramazan (Springer Science and Business Media LLC, 2008-11-01)
We present the analytical solution of the Schrodinger Equation for the Makarov potential within the framework of the asymptotic iteration method for any n and l quantum numbers. Energy eigenvalues and the corresponding wave functions are calculated. We also obtain the same results for the ring shaped Hartmann potential which is the special form of the non-central Makarov potential.
Quadrature error compensation and its effects on the performance of fully decoupled MEMS gyroscopes
Tatar, Erdinç; Akın, Tayfun; Department of Electrical and Electronics Engineering (2010)
This thesis, for the first time in the literature, presents the effect of quadrature error compensation on the performance of a fully decoupled MEMS gyroscope and provides experimental data on the sources of quadrature error. Dedicated quadrature error cancellation electrodes operating with only differential DC potentials are designed. Gyroscopes with intentionally placed imperfections are fabricated with SOG based SOI process which provides higher yield and uniformity compared to SOG process. Tests show th...
Citation Formats
C. Yüce, “Rare z decays and noncommutative theories,” Ph.D. - Doctoral Program, Middle East Technical University, 2004.