Physical sciences topic list of research papers
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The Ni-rich part of the Al–Ge–Ni phase diagram
Abstract The Ni-rich part of the ternary system Al–Ge–Ni (x Ni > 50 at.%) was investigated by means of optical microscopy, powder X-ray diffraction (XRD), differential thermal analysis (DTA) and scanning electron microscopy...
2012 / Isabella Jandl, Thomas L. Reichmann, Klaus W. Richter -
Linking a distance measure of entanglement to its convex roof2010 / Alexander Streltsov, Hermann Kampermann, Dagmar Bruß
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Topological susceptibility in full QCD with Ginsparg–Wilson fermions
Abstract We show that, if the formula for the topological charge density operator suggested by the use of fermions obeying the Ginsparg–Wilson relation is employed, it is possible to give a precise and unambiguous definition of the topological...
2004 / L. Giusti, G.C. Rossi, M. Testa -
Dynamic polarization potential effects on vector analyzing powers of 6Li–28Si elastic scattering from non-monotonic potentials
Abstract Experimental cross section (CS) and vector analyzing power (VAP) data of the 6Li–28Si elastic scattering at 22.8 MeV are analyzed in the coupled-channels (CC) and coupled discretized continuum channels (CDCC) methods. Non-monotonic (NM) 6Li ...
2010 / A.K. Basak, P.K. Roy, S. Hossain, M.N.A. Abdullah, A.S.B. Tariq, et al. -
Renormalization-scale independence of the physical cosmological constant
Abstract Treating the metric as a classical background field, we show that the cosmological constant does not run with the renormalization scale—contrary to some claims in the literature.
2008 / R. Foot, A. Kobakhidze, K.L. McDonald, R.R. Volkas -
Thermodynamics of Spinor Quintom
Abstract We discuss the thermodynamic properties of dark energy (DE) with Quintom matter in spinor scenario. (1) Using the Cardy–Verlinde formula, we investigate the conditions of validity of the Generalized Second Law of thermodynamics (GSL) in the ...
2009 / Jing Wang, Shu-wang Cui, Cheng-min Zhang -
Reconstructing the interaction rate in holographic models of dark energy
Abstract We reconstruct the interaction rate of the holographic dark energy model recently proposed by Zimdahl and Pavón [W. Zimdahl, D. Pavón, Class. Quantum Grav. 24 (2007) 5461] in the redshift interval 0 ...
2008 / Anjan A. Sen, Diego Pavón -
Erratum to: “Interactions of neutrino with an extremely light scalar”2003 / Xiao-Gang He, Bruce H.J. McKellar, G.J. Stephenson
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ERBL and DGLAP kernels for transversity distributions. Two-loop calculations in covariant gauge
Abstract The results of a two-loop calculation in the Feynman gauge of both the DGLAP and the ERBL evolution kernels for transversely polarized distributions are presented. The structure of these evolution kernels is discussed in detail. In...
2008 / S.V. Mikhailov, A.A. Vladimirov -
Probing the nature of cosmic acceleration
Abstract The cosmic acceleration is one of the most significant cosmological discoveries over the last century. The two categories of explanation are exotic component (dark energy) and modified gravity. We constrain the two types of model by a joint ...
2008 / Hongsheng Zhang, Heng Yu, Hyerim Noh, Zong-Hong Zhu -
Erratum to: “Lattice HQET with exponentially improved statistical precision” [Phys. Lett. B 581 (2004) 93]2005 / Michele Della Morte, Stephan Dürr, Jochen Heitger, Heiko Molke, Juri Rolf, et al.
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Why the observed jet quenching at RHIC is due to parton energy loss
Abstract Significant jet quenching in central Au+Au collisions has been discovered at RHIC. This Letter provides theoretical arguments and lists experimental evidence that the observed jet quenching at RHIC is due to parton energy loss instead of...
2003 / Xin-Nian Wang -
NNLO QCD corrections to the Higgs-strahlung processes at hadron colliders
Abstract We implement, at next-to-next-to-leading order, the QCD corrections to Standard Model Higgs boson production in association with vector bosons at hadron colliders, q q ̄ ...
2003 / Oliver Brein, Abdelhak Djouadi, Robert Harlander -
Black hole entropy, curved space and monsters
Abstract We investigate the microscopic origin of black hole entropy, in particular the gap between the maximum entropy of ordinary matter and that of black holes. Using curved space, we construct configurations with entropy greater than the area A...
2007 / Stephen D.H. Hsu, David Reeb -
Excited states NLIE for sine-Gordon model in a strip with Dirichlet boundary conditions
Abstract We investigate various excited states of sine-Gordon model on a strip with Dirichlet boundary conditions on both boundaries using a non-linear integral equation (NLIE) approach.
2004 / Changrim Ahn, Marco Bellacosa, Francesco Ravanini -
Generalized parton distributions for large x
Abstract The t-dependence of generalized parton distributions for x→1 is discussed. Based on a Fock space expansion, we argue that models, where the t-dependence for x→1 is through the product (1−x)t, are inconsistent. Instead we suggest a leading...
2004 / Matthias Burkardt -
Proton decay in a minimal SUSY SO(10) model for neutrino mixings
Abstract A minimal renormalizable SUSY SO(10) model with B–L symmetry broken by 126 Higgs field has recently been shown to predict all neutrino mixings and the ratio Δm 2 ⊙/Δm 2 ...
2004 / H.S. Goh, R.N. Mohapatra, S. Nasri, Siew-Phang Ng -
The 4d effective action of 5d gauged supergravity with boundaries
Abstract We consider gauged five-dimensional supergravity with boundaries and vector multiplets in the bulk. We analyse the zero modes of the BPS configurations preserving N = ...
2004 / Ph. Brax, N. Chatillon -
Searching for the dual of the Maxwell–Chern–Simons model minimally coupled to dynamical U(1) charged matter
Abstract The possibility of dual equivalence between the self-dual and the Maxwell–Chern–Simons (MCS) models when the latter is coupled to dynamical, U(1) fermionic charged matter is examined. The proper coupling in the self-dual model is then...
2005 / M.S. Guimarães, T. Mariz, R. Menezes, C. Wotzasek -
Constraints on an asymptotic safety scenario for the Wess–Zumino model
Abstract Using the nonrenormalization theorem and Pohlmeyer's theorem, it is proven that there cannot be an asymptotic safety scenario for the Wess–Zumino model unless there exists a non-trivial fixed point with (i) a negative anomalous dimension...
2009 / Oliver J. Rosten