Physical sciences topic list of research papers
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Coalgebraic Representation Theory of Fractals
Abstract We develop a representation theory in which a point of a fractal specified by metric means (by a variant of an iterated function system, (IFS) is represented by a suitable equivalence class of infinite streams of symbols. The framework is...
2010 / Ichiro Hasuo, Bart Jacobs, Milad Niqui -
Anomalous magneto-transport properties in nearly gapless materials
Abstract We have measured magnetoresistance (MR) for semimetals Bi and graphite, nearly gapless materials Bi-Sb and Bi-Te alloys, and narrow gap semiconductor Ag2Se single crystals at 4.2 K and up to 4 T. We have observed a giant MR for Bi, a giant...
2010 / M. Sasaki, A. Ohnishi, N. Satoh, K. Suga, K. Kindo, et al. -
Ac-susceptibility study in rare earth substituted magnetite ferrofluids
Abstract It is shown that variation of the third order ac-susceptibility as a function of measuring field and frequency lead to distinguish between superparamagnetic and spin glass like ordering in the rare earth substituted magnetic ferrofluids. We ...
2010 / R.V. Upadhyay, Kinnari Parekh, A. Banerjee, Kranti Kumar -
Luminescence of the self-trapped exciton in KCl
Abstract Recent data on the luminescence of the self-trapped exciton in KCl are analysed, and a theoretical description is given of the temperature-dependence of the intensity, polarisation and lifetime of the emission. We conclude that emission is...
2002 / K.S. Song, A.M. Stoneham -
Auroral kilometric radiation from a nonstationary thin plasma cavity2012 / T. M. Burinskaya, J.-L. Rauch
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Wheeler–DeWitt equation in five dimensions and modified QED
Abstract We consider the ADM splitting of the Einstein–Hilbert action in five dimensions in the presence of matter that can be either a “point particle”, or a set of scalar fields. The Hamiltonian, being a linear superposition of constraints, is...
2012 / Matej Pavšič -
Statistical Properties of Fluctuation of Charged Fine Particles in an AC Trap
Abstract We have investigated the behavior of a small number of charged fine particles under Coulomb interactions in an AC trap. There is a transition from ballistic to diffusive motion in the mean square displacement of the angle, θ, for a single...
2012 / Ryuji Ishizaki, Hiroki Hata, Tatsuo Shoji, Yosuke Furuta -
First observation of the KS→π0γγ decay
Abstract Using the NA48 detector at the CERN SPS, 31 K S →π 0 γγ candidates with an estimated background of 13.7±3.2 events have been...
2003 / A Lai, D Marras, J.R Batley, R.S Dosanjh, T.J Gershon, et al. -
Effective field theory for nonstandard top quark couplings
Abstract We present an effective-field-theory calculation of the effect of a dimension-six operator involving the top quark on precision electroweak data via a top-quark loop. We demonstrate the renormalizability, in the modern sense, of the...
2011 / Nicolas Greiner, Scott Willenbrock, Cen Zhang -
Improved multiexponential transient spectroscopy by iterative deconvolution2002 / S. Marco, J. Palacin, J. Samitier
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Tensor form factors of nucleon in QCD
Abstract We extract the isovector tensor nucleon form factors, which play an important role in understanding the transverse spin structure of the nucleon when related to the quark helicity-flip generalized parton distributions via their first...
2011 / Güray Erkol, Altug Ozpineci -
Influence of entrance-channel magicity and isospin on quasi-fission
Abstract The role of spherical quantum shells in the competition between fusion and quasi-fission is studied for reactions forming heavy elements. Measurements of fission fragment mass distributions for different reactions leading to similar...
2012 / C. Simenel, D.J. Hinde, R. du Rietz, M. Dasgupta, M. Evers, et al. -
Kinetic k-essence ghost dark energy model
Abstract A ghost dark energy model has been recently put forward to explain the current accelerated expansion of the Universe. In this model, the energy density of ghost dark energy, which comes from the Veneziano ghost of QCD, is proportional to...
2012 / Alberto Rozas-Fernández -
Magneto Convection in a Layer of Nanofluid With Soret Effect2015 / Ramesh Chand, Gian Chand Rana
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Analysis of Uniformity of Magnetic Field Generated by the Two-Pair Coil System2013 / P. Kędzia, T. Czechowski, M. Baranowski, J. Jurga, E. Szcześniak
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Propagation of solitary waves in magnetized three-component plasmas
Abstract The propagation of nonlinear ion-acoustic waves in magnetized plasma consisting of cold ions, hot electrons and positrons has been studied. It is demonstrated that in the case of weak nonlinearity the ion-acoustic waves are described by the ...
2010 / M. Mehdipour, S.A. Kazemipour -
Iron Isotope Effect and Local Lattice Dynamics in the (Ba, K)Fe2As2 Superconductor Studied by Temperature-Dependent EXAFS2013 / Wangsheng Chu, Jie Cheng, Shengqi Chu, Tiandou Hu, Augusto Marcelli, et al.
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Bounds to the Higgs sector masses in minimal supersymmetry from LHC data
Abstract We update our analysis of the Higgs sector masses in minimal supersymmetry and in the Two Higgs Doublet Model to the final ATLAS and CMS data from the 2011–2012 LHC run.
2013 / L. Maiani, A.D. Polosa, V. Riquer -
Modern Summation Methods and the Computation of 2- and 3-loop Feynman Diagrams
By symbolic summation methods based on difference fields we present a general strategy that transforms definite multi-sums, e.g., in terms of hypergeometric terms and harmonic sums, to indefinite nested sums and products. We succeeded in this task with all our...
2010 / Jakob Ablinger, Johannes Blümlein, Sebastian Klein, Carsten Schneider -
On electron movement through magnetic electron lens2008 / A.A. Melnikov, O.D. Potapkin