In this report a new search for a narrow-width heavy resonance decaying into top quark pairs (X → tt) in pp collisions at √s = 1.96 TeV has been performed using data collected by the DØ detector at the Fermilab Tevatron collider. The analysis considers tt candidate events in the lepton+jets channel using a lifetime tag to identify b-jets and the tt invariant mass distribution to search for evid...

ANNI ANTNIEMI: Evaluation of the feasibility of biodegradable polymers for encapsulating resonance circuits Tampere University of Technology Master of Science Thesis, 63 pages, 1 Appendix page June 2016 Master’s Degree Programme in Material Science Major: Biomaterials Examiner: Professor Minna Kellomäki

Microphotonic filters require precise control of the relative resonance frequencies of integrated dielectric micro-cavities. Using high-index-contrast microring resonators, we present, demonstrate, and analyze techniques allowing small and accurate corrections of resonance frequencies at fabrication. ©2006 Optical Society of America OCIS codes: (230.3120) Integrated optics devices; (230.4000) M...

We discuss topological transitions during parametric resonance in the gauge sector of electroweak theory. It is shown that the resonance leads to separation of topological indices of the gauge and Higgs fields, resulting in topological transitions of non-sphaleron nature.

An approximate Poincare map near equally strong multiple resonances is reduced by means the method of averaging. Near the resonance junction of three degrees of freedom, we find that some homoclinic orbits “whiskers” in single resonance lines survive and form nearly periodic orbits, each of which looks like a pair of homoclinic orbits.

At large number of colors, Nc quarks in baryons are in a mean field of definite space and flavor symmetry. We write down the general Lorentz and flavor structure of the mean field, and derive the Dirac equation for quarks in that field. The resulting baryon resonances exhibit an hierarchy of scales: The crude mass is O(Nc), the intrinsic quark excitations are O(1), and each intrinsic quark stat...

We investigate the structure of the nucleon resonance N∗(1440) (Roper) within a coupled-channel meson exchange model for pion-nucleon scattering. The coupling to ππN states is realized effectively by the coupling to the σN , π∆ and ρN channels. The interaction within and between these channels is derived from an effective Lagrangian based on a chirally symmetric Lagrangian, which is supplemente...

In the resonance ratio control, which we proposed for vibration suppression and disturbance rejection in torsional system, the estimation speed of the disturbance observer should have been much faster than the resonance frequency of the controlled system. However, too fast disturbance observer sometimes causes implementation problem. In this paper, we give the optimal speed of the disturbance o...

We present a detailed theoretical study on the photoionization from the bound excited 1P state of He to continua dominated by multiple doubly excited resonance series embedded in multiple single-ionization channels between the N = 2 and N = 3 thresholds. In addition to identifying the individual resonance series, our investigation has also demonstrated unambiguously the level crossing between o...

The unidirectional oscillating flow of a viscoelastic fluid with the fractional Maxwell model is studied. The flow is produced by a periodic pressure gradient in an infinite straight pipe. Exact solutions are obtained in the time and frequency domains by using Fourier transform. The fractional Maxwell model exhibits resonance phenomena similar to that of the Maxwell model. However, the number o...