Results 51 to 60 of about 130,257 (242)

Constraining properties of neutron stars with heavy-ion reactions in terrestrial laboratories

, 2007
Heavy-ion reactions provide a unique means to investigate the equation of state (EOS) of neutron-rich nuclear matter, especially the density dependence of the nuclear symmetry energy $E_{sym}(\rho)$.
Andrew W Steiner, Bao-An Li, Che Ming Ko, Chen L W Ko C M Li B A Yong G C, Dirac P A M, Gao-Chan Yong, Krastev P G Li B A, Li B A, Lie-Wen Chen, Plamen G Krastev, Trümper J E   +10 more
core   +1 more source

Quantum Iterative Methods for Solving Differential Equations with Application to Computational Fluid Dynamics

Advanced Quantum Technologies, EarlyView.
Quantum algorithms for differential equations are developed with applications in computational fluid dynamics. The methods follow an iterative simulation framework, implementing Jacobi and Gauss–Seidel schemes on quantum registers through linear combinations of unitaries.
Chelsea A. Williams, Antonio A. Gentile, Vincent E. Elfving, Daniel Berger, Oleksandr Kyriienko   +4 more
wiley   +1 more source

Nuclear astrophysics and electron beams

, 2013
Electron beams provide important probes and constraints for nuclear astrophysics. This is especially exciting at energies within the regime of chiral effective field theory (EFT), which provides a systematic expansion for nuclear forces and electroweak ...
Schwenk, A.
core   +1 more source

Adsorption of Helium on Cationic or Anionic Tetracene and Pentacene

Small Structures, EarlyView.
How does the arrangement of helium atoms that are adsorbed on tetracene or pentacene ions change with increasing coverage? When does the adsorption layer change from 1D to 2D, and to 3D? Is the transition abrupt? Are the helium atoms localized? Is the arrangement the same for cations and anions? What changes as the acene grows in length?
Miriam Kappe, Florent Calvo, Rasif William, Bilal Rasul, Masoomeh Mahmoodi‐Darian, Paul Scheier, Olof Echt   +6 more
wiley   +1 more source

Nuclear Problems in Astrophysics

Proceedings of the International School of Physics “Enrico Fermi”, 2003
These lectures, presented at the International School of Physics ``Enrico Fermi,'' deal with two major themes. The first is the remarkable story of the solar neutrino problem, which (along with the atmospheric neutrino anomaly) recently led to the discovery of massive neutrinos and neutrino oscillations, physics beyond the standard model.
openaire   +2 more sources

Anomalous‐Energy Runaway Electrons Originating in Fast Ionisation Wave During Pulsed Gas Breakdown

High Voltage, EarlyView.
ABSTRACT Anomalous‐energy runaway electrons (RAEs), whose energy exceeds the maximum potential difference across the discharge gap, are widely observed in various plasma phenomena. This study investigates the origination of anomalous‐energy RAEs in fast ionisation waves (FIWs) formed during pulsed gas breakdown.
Bangdou Huang, Chenhua Ren, Cheng Zhang, Edl Schamiloglu, Tao Shao   +4 more
wiley   +1 more source

Transfer reactions for nuclear astrophysics

EPJ Web of Conferences, 2018
Direct measurements of cross sections at stellar energies are very challenging - if at all possible. This is essentially due to the very low cross-sections of the reactions of interest (especially when it involves charged particles), and/or to the ...
Hammache Fairouz
doaj   +1 more source

Non-explosive hydrogen and helium burnings: Abundance predictions from the NACRE reaction rate compilation [PDF]

, 1999
The abundances of the isotopes of the elements from C to Al produced by the non-explosive CNO, NeNa and MgAl modes of hydrogen burning, as well as by helium burning, are calculated with the thermonuclear rates recommended by the European compilation of ...
Arnould, M., Goriely, S., Jorissen, A.
core   +1 more source

Nuclear-Astrophysics Lessons from INTEGRAL

, 2013
Measurements of high-energy photons from cosmic sources of nuclear radiation through ESA's INTEGRAL mission have advanced our knowledge: New data with high spectral resolution showed that characteristic gamma-ray lines from radioactive decays occur ...
Diehl, Roland
core   +1 more source

Noble gases and nitrogen in material from asteroid Bennu

Meteoritics &Planetary Science, EarlyView.
Abstract We report the elemental and isotopic abundances of all stable noble gases (helium, neon, argon, krypton, and xenon) in eight particles from asteroid Bennu returned by NASA's OSIRIS‐REx mission. We also report nitrogen abundances and isotopic ratios that were analyzed alongside neon and argon in four additional Bennu particles.
B. Marty, L. Zimmermann, E. Füri, D. V. Bekaert, J. J. Barnes, A. N. Nguyen, H. C. Connolly, D. S. Lauretta   +7 more
wiley   +1 more source