Physical sciences topic list of research papers
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Modeling radioactive decay
Abstract This study was prepared at the aim of teaching of the law of radioactive decay. The formula of the law of radioactive decay was tried to reach by using of 200 coins and with 200 procreated numbers in simulation to represent a radioactive...
2011 / Mustafa Bakaç, Aslıhan Kartal Taşoğlu, Gizem Uyumaz -
The Rubakov–Callan scattering on the supergravity monopole
Abstract We study small perturbations around the supersymmetric CVMN monopole solution of the gauged supergravity in D = 4 . We find that the perturbation...
2011 / Ali H. Chamseddine, Mikhail S. Volkov -
Theoretical constraints on new generations with and without quarks or neutrinos
Abstract We consider large classes of chiral extensions of the Standard Model, including new quark generations that do not involve additional neutrinos as well as lepton generations without quarks. An analysis of renormalization flows of Yukawa and...
2011 / Alexander Knochel, Christof Wetterich -
Singularities in cosmologies with interacting fluids
Abstract We study the dynamics near finite-time singularities of flat isotropic universes filled with two interacting but otherwise arbitrary perfect fluids. The overall dynamical picture reveals a variety of asymptotic solutions valid locally...
2012 / Spiros Cotsakis, Georgia Kittou -
Beyond the speed of light on Finsler spacetimes
Abstract As a prototypical massive field theory we study the scalar field on the recently introduced Finsler spacetimes. We show that particle excitations exist that propagate faster than the speed of light recognized as the boundary velocity of...
2012 / Christian Pfeifer, Mattias N.R. Wohlfarth -
Coherent phonons in NdBa2Cu3O7−x single crystals: Optical-response anisotropy and hysteretic behavior2004 / O. V. Misochko, M. V. Lebedev, N. Georgiev, T. Dekorsy
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Onset of self-steepening of intense laser pulses in plasmas2010 / J Vieira, F Fiúza, L O Silva, M Tzoufras, W B Mori
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Search for the critical point and the onset of deconfinement2012 / Christoph Blume
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A Fourth-order Sigma-Delta Interface Circuit for Closed-loop Micromachined Accelerometer
Abstract A single–loop fourth-order sigma-delta (ΣΔ) interface circuit for closed-loop micromachined accelerometer is presented in this work. Two additional electronic integrators are cascaded with the micromachind sensing element to form a...
2009 / Xiaowei Liu, Yuntao Liu, Weiping Chen, Qun Wu -
Constraints on dark matter protohalos in effective theories and neutrinophilic dark matter
Abstract The mass of primordial dark matter (DM) protohalos remains unknown. However, the missing satellites problem may be an indication that they are quite large. In this paper, we use effective field theory to map constraints on dark matter-SM...
2013 / Ian M. Shoemaker -
Quantitative evaluation of temporal partial coherence using 3D Fourier transforms of through-focus TEM images
Abstract We evaluate the temporal partial coherence of transmission electron microscopy (TEM) using the three-dimensional (3D) Fourier transform (FT) of through-focus images. Young's fringe method often indicates the unexpected high-frequency...
2013 / Koji Kimoto, Hidetaka Sawada, Takeo Sasaki, Yuta Sato, Takuro Nagai, et al. -
Dark Radiation or Warm Dark Matter from long lived particle decays in the light of Planck
Abstract Although Planck data supports the standard ΛCDM model, it still allows for the presence of Dark Radiation corresponding up to about half an extra standard neutrino species. We propose a scenario for obtaining a fractional “effective...
2013 / Pasquale Di Bari, Stephen F. King, Alexander Merle -
Development of a ReadOutDriver (ROD) for ATLAS micromegas
Abstract Microstructured gaseous detectors are a possible replacement technology for the inner part of the forward muon spectrometer of the ATLAS detector, when the luminosity of the LHC will increase beyond the design value. During the shutdown...
2012 / Andre Zibell -
Integrating in dark matter astrophysics at direct detection experiments
Abstract We study the capabilities of the Majorana Demonstrator, a neutrinoless double-beta decay experiment currently under construction at the Sanford Underground Laboratory, as a light WIMP detector. For a cross section near the current...
2013 / Alexander Friedland, Ian M. Shoemaker -
Jet quenching and event-wise mean-pt fluctuations in central Au–Au collisions at sNN=200 GeV in Hijing-1.37
Abstract Based on Hijing-1.37 simulations, event-wise mean-p t fluctuations in Au–Au collisions at sNN ...
2003 / Qingjun Liu, Thomas A Trainor -
Theory of the J-band: From the Frenkel exciton to charge transfer
Abstract This review concerns the current status of the theory of formation of the so-called J-band (Jelley, Scheibe, 1936), an abnormally narrow, high-intensity, red-shifted optical absorption band arising from the aggregation of polymethine dyes....
2009 / Vladimir V. Egorov -
Advances in the Projective Dynamics Method: A Procedure of Discretizing the Space applied to Markovian Processes
Abstract The projection of a continuous space process to a discrete space process via the transition rates between neighboring bins allows us to relate a master equation to a solution of a stochastic differential equation. The presented method is...
2010 / Katja Schäfer, M.A. Novotny -
Wave Propagation in Nanocomposite Materials2010 / Pierre Hillion
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Understanding and controlling N -dimensional quantum walks via dispersion relations: application to the two-dimensional and three-dimensional Grover walks—diabolical points and more2013 / Margarida Hinarejos, Armando Pérez, Eugenio Roldán, Alejandro Romanelli, Germán J de Valcárcel
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New Laser Fusion and Its Gain by Intense Laser2010 / Kazuo Imasaki, Dazhi Li