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We present a study of the local structure of high pressure hydrogen around the liquid-liquid transition line based on results from the Coupled Electron-Ion Monte Carlo method. We report results for the Equation of State, for the radial…

Statistical Mechanics · Physics 2018-05-09 Carlo Pierleoni , Markus Holzmann , David M. Ceperley

Understanding water deuterium fractionation is important for constraining the mechanisms of water formation in interstellar clouds. Observations of HDO and H$_2^{18}$O transitions were carried out towards the high-mass star-forming region…

Because the ionization balances for HI, OI, and DI are locked together by charge exchange, D/O is an important tracer for the value of the D/H ratio and for potential spatial variations in the ratio. As the DI and OI column densities are of…

Astrophysics · Physics 2009-11-10 Guillaume Hebrard , H. Warren Moos

The behavior of lipid bilayer is important to understand the functionality of cells like the trafficking of ions between cells. Standard procedures to explore the properties of lipid bilayer and hemifused states typically use either…

Soft Condensed Matter · Physics 2014-10-14 Jose Nabor Vargas , Ralf Seemann , Jean-Baptiste Fleury

The reactions of cold H atoms with solid O2 molecules were investigated at 10 K. The formation of H2O2 and H2O has been confirmed by in-situ infrared spectroscopy. We found that the reaction proceeds very efficiently and obtained the…

Astrophysics · Physics 2009-11-13 N. Miyauchi , H. Hidaka , T. Chigai , A. Nagaoka , N. Watanabe , A. Kouchi

The equilibrium silica liquid-liquid interface between the high-density liquid (HDL) phase and the low-density liquid (LDL) phase is examined using molecular-dynamics simulation. The structure, thermodynamics, and dynamics within the…

Materials Science · Physics 2022-10-19 Xin Zhang , Brian B. Laird , Hongtao Liang , Wenliang Lu , Zhiyong Yu , Xiangming Ma , Ya Cheng , Yang Yang

Context: Despite the low elemental deuterium abundance in the Galaxy, enhanced molecular D/H ratios have been found in the environments of low-mass star-forming regions and, in particular, the Class 0 protostar IRAS 16293-2422. Aims: The…

Astrophysics of Galaxies · Physics 2015-06-15 A. Coutens , C. Vastel , S. Cazaux , S. Bottinelli , E. Caux , C. Ceccarelli , K. Demyk , V. Taquet , V. Wakelam

The injection of liquid fuel at supercritical pressures is a relevant topic in combustion, but usually overlooked. In the past, the wrong assumption whereby the liquid experiments a fast transition to a supercritical state was made, thus…

Fluid Dynamics · Physics 2021-12-14 Jordi Poblador-Ibanez , William A. Sirignano

Oxygen exchange at oxide/liquid and oxide/gas interfaces is important in technology and environmental studies, as it is closely linked to both catalytic activity and material degradation. The atomic-scale details are mostly unknown,…

Using tunneling spectroscopy we have measured the spectral density of states of the mobile, two-dimensional electron system generated at the LaAlO3-SrTiO3 interface. As shown by the density of states the interface electron system differs…

The transverse momentum and rapidity distributions of net protons and negatively charged hadrons have been measured for minimum bias proton-nucleus and deuteron-gold interactions, as well as central oxygen-gold and sulphur-nucleus…

High Energy Physics - Experiment · Physics 2008-11-26 NA35 Collaboration , T. Alber et al

In high energy electron-ion colliders, a new way to probe nucleon structure becomes available through diffractive reactions, where the incident particle produces a very energetic almost forward particle. QCD describes these reactions as due…

High Energy Physics - Phenomenology · Physics 2021-06-02 W. Cosyn , B. Pire

The short parton production phase in high-energy heavy-ion collisions is treated analytically as a nonlinear diffusion process. The initial buildup of the rapidity density distributions of produced charged hadrons within tau_p = 0.25 fm/c…

High Energy Physics - Phenomenology · Physics 2009-06-10 Georg Wolschin

The magnitude of the pH of the surface of water continues to be a contentious topic in the physical chemistry of aqueous interfaces. Recent theoretical studies have shown little or no preference for the proton to be at the surface compared…

Soft Condensed Matter · Physics 2017-08-02 Federico Giberti , Ali A. Hassanali

In this work we first study the quantum diffusion in a volume of a crystalline solid at high interstitial concentrations when the effects of the short-range interactions between the diffusing particles are to be factors. Within the scope of…

Materials Science · Physics 2007-05-23 G. L. Buchbinder , V. N. Shapov

A recently formulated thermal model for hadron production in heavy-ion collisions in the few-GeV energy regime is combined with the idea that some part of protons and neutrons present in the original thermal system forms deuterons via the…

Nuclear Theory · Physics 2023-12-22 Wojciech Florkowski , Radoslaw Ryblewski , Piotr Salabura , Nikodem Witkowski

Many-body interactions in transition-metal oxides give rise to a wide range of functional properties, such as high-temperature superconductivity, colossal magnetoresistance, or multiferroicity. The seminal recent discovery of a…

$Aims$: We revisit with new augmented accuracy the theoretical dynamics of basic isotope exchange reactions involved in the $^{12}$C/$^{13}$C, $^{16}$O/$^{18}$O, and $^{14}$N/$^{15}$N balance because these reactions have already been…

Astrophysics of Galaxies · Physics 2015-06-19 Mirjana Mladenović , Evelyne Roueff

We consider deuteron formation in heavy ion collisions at intermediate energies. The elementary reaction rates (Nd -> NNN) in this context are calculated using rigorous Faddeev methods. To this end an in-medium Faddeev equation that…

Nuclear Theory · Physics 2007-05-23 M. Beyer , C. Kuhrts , G. Roepke

Water plays a crucial role both in the interstellar medium and on Earth. To constrain its formation mechanisms and its evolution through the star formation process, the determination of the water deuterium fractionation ratios is…

Solar and Stellar Astrophysics · Physics 2015-06-22 Audrey Coutens , Jes Jørgensen , Magnus Persson , Ewine van Dishoeck , Charlotte Vastel , Vianney Taquet