Physical sciences topic list of research papers
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Worldline approach of topological BF theory
Abstract We present a worldline description of topological non-Abelian BF theory in arbitrary space–time dimensions. It is shown that starting with a trivial classical action defined on the worldline, the BRST cohomology has a natural representation ...
2005 / Ichiro Oda, Mario Tonin -
Curvature perturbation from supersymmetric flat directions
Abstract We show that a contribution to the total curvature perturbation may be due to the presence of flat directions in supersymmetric models. It is generated at the first oscillation of the flat direction condensate when the latter relaxes to the ...
2008 / Antonio Riotto, Francesco Riva -
Non-commutative power-law inflation: mode equation and spectra index
Abstract Following an elegant approach that merges the effects of the stringy spacetime uncertainty relation into primordial perturbations suggested by Brandenberger and Ho, we show the mode equation up to the first order of non-commutative...
2004 / Dao-jun Liu, Xin-zhou Li -
Higher tetraquark particles
Abstract There are strong arguments favoring a four-quark interpretation of sub-GeV light scalar mesons and the diquark–antidiquark body-plan of the tetraquark seems to provide the most convincing picture. The building diquarks of these particles...
2008 / N.V. Drenska, R. Faccini, A.D. Polosa -
Predictions of the constrained exceptional supersymmetric standard model
Abstract We discuss the predictions of a constrained version of the exceptional supersymmetric standard model (cE6SSM), based on a universal high energy soft scalar mass m ...
2009 / P. Athron, S.F. King, D.J. Miller, S. Moretti, R. Nevzorov -
The new form of the equation of state for dark energy fluid and accelerating universe
Abstract We suggest to generalize the dark energy equation of state (EoS) by introduction the relaxation equation for pressure which is equivalent to consideration of the inhomogeneous EoS cosmic fluid which often appears as the effective model from ...
2006 / Shin'ichi Nojiri, Sergei D. Odintsov -
D-term contributions to the mixed modulus–anomaly mediated supersymmetry breaking
Abstract We investigate effects of D-term contributions to the mixed modulus–anomaly mediated supersymmetry breaking scenario. In the original scenario, the tachyonic slepton problem in the pure anomaly mediated supersymmetry breaking is cured by...
2006 / Takeshi Fukuyama, Tatsuru Kikuchi, Nobuchika Okada -
On the consistency of Lorentz invariance violation in QED induced by fermions in constant axial-vector background
Abstract We show for the first time that the induced parity-even Lorentz invariance violation can be unambiguously calculated in the physically justified and minimally broken, dimensional regularization scheme, suitably tailored for a spontaneous...
2006 / J. Alfaro, A.A. Andrianov, M. Cambiaso, P. Giacconi, R. Soldati -
Two loop renormalization of the magnetic coupling in hot QCD
Abstract Well above the critical temperature hot QCD is described by 3d electrostatic QCD with gauge coupling g E and Debye mass m E ...
2004 / P. Giovannangeli -
Duality between QCD perturbative series and power corrections
Abstract We elaborate on the relation between perturbative and power-like corrections to short-distance sensitive QCD observables. We confront theoretical expectations with explicit perturbative calculations existing in literature. As is expected,...
2009 / S. Narison, V.I. Zakharov -
Hawking radiation from rotating black holes in anti-de Sitter spaces via gauge and gravitational anomalies
Abstract Robinson–Wilczek's recent work, which treats Hawking radiation as a compensating flux to cancel gravitational anomaly at the horizon of a Schwarzschild-type black hole, is extended to study Hawking radiation of rotating black holes in...
2007 / Qing-Quan Jiang, Shuang-Qing Wu -
Neutralino signatures of the singlet extended MSSM
Abstract Extending the Higgs sector of the MSSM by the addition of a gauge singlet scalar field can remedy the μ problem. We explore the implications of extended models for both the spectrum of the neutralinos and the cascade decays of the...
2006 / Vernon Barger, Paul Langacker, Gabe Shaughnessy -
A note on the uniqueness of the Neumann matrices in the plane-wave background
Abstract In this Letter, we prove the uniqueness of the Neumann matrices of the open–closed vertex in plane-wave light-cone string-field theory, first derived for all values of the mass parameter μ in [Phys. Rev. D 69 (2004) 086005]. We also prove...
2004 / James Lucietti -
Dynamic multimode analysis of high-power 3-level lasers
Abstract We present a comprehensive simulation model for high-power 3-level lasers based on a “Dynamic Multimode Analysis” (DMA) [1]. DMA has proven to be a powerful tool to analyze mode competition depending on thermal, spatial, and dynamic effects ...
2010 / M. Wohlmuth, C. Pflaum -
Raman spectroscopy study of group IV semiconductor nanowires
Abstract Group IV nanostructures have attracted a great deal of attention because of their potential applications in optoelectronics and nanodevices. Raman spectroscopy has been extensively used to characterize nanostructures since it provides non...
2010 / J. Anaya, A. Torres, A. Martín-Martín, O. Martínez, A.C. Prieto, et al. -
2D array based on fermat spiral
Abstract The main challenge faced by 3D ultrasonic imaging with 2D array transducer is the large number of elements required to achieve an acceptable level of quality in the images. Therefore, the optimization of the array layout to reduce the...
2010 / O. Martínez, C.J. Martín, G. Godoy, L.G. Ullate -
Magnetic Order and Transitions in the Spin-web Compound Cu3TeO6
Abstract The spin-web compound Cu3TeO6, belongs to an intriguing group of materials where magnetism is governed by3d 9 copper Cu2+ ions. This compound has been sparsely experimentally studied and we here present the first...
2012 / Martin Månsson, Krunoslav Prša, Jun Sugiyama, Daniel Andreica, Hubertus Luetkens, et al. -
Science and the Large Hadron Collider: a probe into instrumentation, periodization and classification2012 / Arpita Roy
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Estimation in the presence of many nuisance parameters: Composite likelihood and plug-in likelihood
Abstract We consider the incidental parameters problem in this paper, i.e. the estimation for a small number of parameters of interest in the presence of a large number of nuisance parameters. By assuming that the observations are taken from a...
2013 / Billy Wu, Qiwei Yao, Shiwu Zhu -
A new technique for electromagnetic characterization of spherical dust molecular cloud equilibrium structure
Abstract We propose a new technique after the modified Lane–Emden equation to explore the electromagnetic properties of spherically symmetric dust molecular cloud (DMC) in field-free hydroelectrostatic equilibrium. Its subsequent characterization on ...
2012 / P.K. Karmakar