Results 61 to 70 of about 205,983 (267)

The Quest for the Quark‐Gluon Plasma From the Perspective of Dynamical Models of Relativistic Heavy‐Ion Collisions

open access: yesAstronomische Nachrichten, EarlyView.
ABSTRACT The physics of heavy‐ion collisions is one of the most exciting and challenging directions of science for the last four decades. On the theoretical side one deals with a non‐abelian field theory, while on the experimental side today's largest accelerators are needed to enable these studies.
Marcus Bleicher, Elena Bratkovskaya
wiley   +1 more source

Diffuse scattering in ice Ih

open access: yes, 2014
Single crystals of ice Ih, extracted from the subglacial Lake Vostok accretion ice layer (3621 m depth) were investigated by means of diffuse x-ray scattering and inelastic x-ray scattering.
Bosak, Alexeï   +5 more
core   +1 more source

Rejection-based sampling of inelastic neutron scattering [PDF]

open access: yes, 2018
Distributions of inelastically scattered neutrons can be quantum dynamically described by a scattering kernel. We present an accurate and computationally efficient rejection method for sampling a given scattering kernel of any isotropic material. The proposed method produces continuous neutron energy and angular distributions, typically using just a ...
arxiv   +1 more source

Incorporated Hydrogen into Mixed Oxides Provides A Novel and Versatile Concept to Promote Catalytic Oxidation Reactions

open access: yesChemCatChem, EarlyView.
Hydrogen can be added to a solid solution of rutile oxides (RuxTi1‐xO2 and IrxTi1‐xO2) at a concentration of 20–30 at% by exposing it to hydrogen at a temperature of 150–200°C. This has been shown to dramatically increase the catalytic activity of oxidation reactions, such as the combustion of propane (thermal catalysis) and the evolution of oxygen in ...
Herbert Over, Wei Wang
wiley   +1 more source

Probing photoinduced spin states in spin-crossover molecules with neutron scattering [PDF]

open access: yes, 2017
We report a neutron scattering investigation of the spin crossover compound \rm [Fe(ptz)6](BF4)2 which undergoes an abrupt thermal spin-transition from high-spin (HS) S=2 to low-spin (LS) S=0 around 135 K.
Chaboussant, G.   +5 more
core   +3 more sources

Fast neutron measurements at the nELBE time-of-flight facility

open access: yesEPJ Web of Conferences, 2015
The compact neutron-time-of-flight facility nELBE at the superconducting electron accelerator ELBE of Helmholtz-Zentrum Dresden-Rossendorf has been rebuilt.
Junghansa A. R.   +7 more
doaj   +1 more source

Measurement of Leading Neutron Production in Deep-Inelastic Scattering at HERA [PDF]

open access: yesEur.Phys.J.C68:381-399,2010, 2010
The production of leading neutrons, where the neutron carries a large fraction x_L of the incoming proton's longitudinal momentum, is studied in deep-inelastic positron-proton scattering at HERA. The data were taken with the H1 detector in the years 2006 and 2007 and correspond to an integrated luminosity of 122 pb^{-1}.
arxiv   +1 more source

Comprehensive Analysis of Crystalline Hydrophobic Alkylated Poly(ethyleneimine)s

open access: yesChemistry – A European Journal, Accepted Article.
Polyethyleneimine (PEI) is a widely used polymer in catalysis, gas separation, water treatment, drug delivery, textiles, and paper production. Herein, we investigate the crystalline structure of hydrophobic PEIs, prepared via simple alkylation as previously reported, using powder X‐ray diffraction, small‐angle X‐ray scattering, thermogravimetric ...
Anand Ayya   +7 more
wiley   +1 more source

Linear Response Theory and the Universal Nature of the Magnetic Excitation Spectrum of the Cuprates

open access: yes, 2007
Linear response theory, commonly known as the random phase approximation (RPA), predicts a rich magnetic excitation spectrum for d-wave superconductors.
A. V. Chubukov   +2 more
core   +1 more source

Towards understanding the magnetic properties of the breathing pyrochlore compound Ba3Yb2Zn5O11through single-crystal studies

open access: yesnpj Quantum Materials, 2022
Ba3Yb2Zn5O11 is exceptional among breathing pyrochlore compounds for being in the nearly-decoupled limit where inter-tetrahedron interactions are weak, hosting isolated clusters or molecular magnet-like tetrahedra of magnetic ytterbium (Yb3+) ions.
Sachith Dissanayake   +12 more
doaj   +1 more source

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