Results 71 to 80 of about 469,962 (235)
Recent results in nuclear astrophysics [PDF]
38 pages, 33 Figures, invited ...
Coc, A., Hammache, F., Kiener, J.
openaire +6 more sources
First direct measurement of 12C(12C,n)23Mg at stellar energies
Neutrons produced by the carbon fusion reaction 12C(12C,n)23Mg play an important role in stellar nucleosynthesis. Past studies have shown large discrepancies between experimental data and theory, leading to an uncertain cross section extrapolation at ...
Tang X.D.+30 more
doaj +1 more source
Laboratory for Underground Nuclear Astrophysics [PDF]
Nuclear reactions shape the life and death of stars and they produce most of the chemical elements in the Universe. The cross section, at the energy of the Gamow peak, is a crucial ingredient to improve our knowledge on stellar and Universe chemical ...
Piatti Denise
doaj +1 more source
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
Nuclear astrophysics and electron beams [PDF]
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 operators based on quantum chromodynamics.
openaire +4 more sources
Theoretical applications to nuclear astrophysics [PDF]
Nuclear reaction study is important to understand elemental abundance in the universe and stability of stars. For several reactions due to the paucity of experimental data or diffculties in performing the direct measurements, we depend upon theoretical ...
Shubhchintak, Sharma Dinkar
doaj +1 more source
Astrophysical Reaction Rates as a Challenge for Nuclear Reaction Theory [PDF]
The relevant energy ranges for stellar nuclear reactions are introduced. Low-energy compound and direct reactions are discussed. Stellar modifications of the cross sections are presented. Implications for experiments are outlined.
arxiv +1 more source
ABSTRACT We investigate the effects of a minimal measurable length on neutron stars, within the quantum hadrodynamics (QHD‐I) model modified by the Generalized Uncertainty Principle (GUP). Working in a deformed Poisson algebra framework, we incorporate GUP effects via a time‐invariant transformation of the phase space volume, effectively reducing the ...
João Gabriel Galli Gimenez+2 more
wiley +1 more source
Opportunities for nuclear astrophysics at FAIR [PDF]
The Facility for Antiproton and Ion Research FAIR is a new accelerator complex currently under construction in Darmstadt, Germany. FAIR will offer unprecedented research opportunities in nuclear, hadron and atomic physics and in several applied sciences.
openaire +3 more sources
ABSTRACT Building on Walter Isard's location and gravity theories in economics, we extend his trade model to better understand its core principles, including commercial attraction, center of gravity in markets, and favorable location for exporting firms.
Luigi Capoani+2 more
wiley +1 more source