A5060267409- Nuclear physics research studies
- Nuclear Physics and Applications
- Neutrino Physics Research
- Astro and Planetary Science
- Particle physics theoretical and experimental studies
- Gamma-ray bursts and supernovae
- Quantum Chromodynamics and Particle Interactions
- Atomic and Molecular Physics
- Astronomical and nuclear sciences
- Origins and Evolution of Life
- Dark Matter and Cosmic Phenomena
- Philosophy and History of Science
- Astrophysics and Cosmic Phenomena
- Advanced Chemical Physics Studies
- Cosmology and Gravitation Theories
- Stellar, planetary, and galactic studies
- Advanced NMR Techniques and Applications
- Scientific Research and Discoveries
- Astronomy and Astrophysical Research
- Laser-Plasma Interactions and Diagnostics
- Philosophy and Theoretical Science
- Radiation Therapy and Dosimetry
- Particle accelerators and beam dynamics
- X-ray Spectroscopy and Fluorescence Analysis
- Astrophysics and Star Formation Studies
Lawrence Livermore National Laboratory
1990-2024
Western Michigan University
2021
The Ohio State University
2003-2020
Cornell University
1983-2019
National Astronomical Observatory of Japan
2007-2018
Massachusetts Institute of Technology
2012
Fusion Academy
2012
Plasma Technology (United States)
2012
Windsor Dermatology
2011
U.S. National Science Foundation
1972-2009
Forty years ago Burbidge, Fowler, and Hoyle combined what we would now call fragmentary evidence from nuclear physics, stellar evolution the abundances of elements isotopes in solar system as well a few stars into synthesis remarkable ingenuity. Their review provided foundation for forty research all aspects low energy experiments theory, modeling over wide range mass composition, abundance studies many hundreds stars, which have shown distinct processes suggested by B${}^{2}$FH. In this...
The National Ignition Facility (NIF) [E. I. Moses, J. Phys.: Conf. Ser. 112, 012003 (2008); https://lasers.llnl.gov/], completed in March 2009, is the highest energy laser ever constructed. high temperatures and densities achievable at NIF will enable a number of experiments inertial confinement fusion stockpile stewardship, as well access to new regimes variety relevant x-ray astronomy, laser-plasma interactions, hydrodynamic instabilities, nuclear astrophysics, planetary science. impact...
I shall be concerned in this paper to defend scientific realism against the thesis that structure of theories we accept is radically underdetermined by any possible experimental evidence. In course discussion will have occasion advance an account evidence which, believe, extends interesting ways considerations which led some philosophers causal knowledge. By mean doctrine sort ordinarily counts favor acceptance a law or theory is, ordinarily, for (at least approximate) truth as relations...
Scientific realism is the doctrine that scientific theories should be understood as putative descriptions of real phenomena, ordinary methods constitute a reliable procedure for obtaining and improving (approximate) knowledge phenomena which describe, the reality described by largely independent our theorizing. Scientific describe reality “prior to thought” (see Boyd 1982).
This paper addresses the question of what scientific realism implies and it does not when is articulated so as to provide best defense against plausible philosophical alternatives. A summary presented "abductive" arguments for realism, epistemological semantic conceptions upon which they depend. Taking these be current inquired what, in sense just mentioned, not. It concluded that strong rejection foundationalism, a non-Humean conception causation explanation, causal rather than conceptual...
By “scientific realism” philosophers ordinarily mean the doctrine that non-observational terms in scientific theories should typically be interpreted as putative referring expressions, and when semantics of is understood way (“realistically“), embody sorts propositions whose (approximate) truth can confirmed by ordinary experimental methods which scientists employ. There are many possible versions realism there accounts how “theoretical terms” refer actual science function to produce...
view Abstract Citations (150) References (44) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Production of the Light Elements in Primordial Nucleosynthesis Kajino, T. ; Boyd, R. N. The predicted yields Be-9, B-10, and B-11 from primordial nucleosynthesis are investigated both standard model (SM) nonuniform density (NDM). For SM, study takes into account a wide range Omega(B), average baryonic universe, for NDM it larger parameter space, including variations...
view Abstract Citations (115) References (14) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Can 9Be Provide a Test of Cosmological Theories? Boyd, Richard N. ; Kajino, T. The Li-7(H-3,n)Be-9 reaction, previously neglected in nucleosynthesis determinations, is found to greatly increase the predicted abundance Be-9 resulting from big bang. For nonuniform density universe, primordial Be-9/H-1 number ratio 10 -13th obtained. It noted that recent measurements...
Measurements of the $D(d,p)T$ ($dd$) and $T(t,2n)^{4}\mathrm{He}$ ($tt$) reaction yields have been compared with those $D(t,n)^{4}\mathrm{He}$ ($dt$) yield, using deuterium-tritium gas-filled inertial confinement fusion capsule implosions. In these experiments, carried out on OMEGA laser, absolute spectral measurements $dd$ protons $tt$ neutrons were obtained. From measurements, it was concluded that yield is anomalously low high relative to $dt$ an observation we conjecture be caused by a...
In large stars that have exhausted their nuclear fuel, the stellar core collapses to a hot and dense proto-neutron star cools by radiation of neutrinos antineutrinos all flavors. Depending on its final mass, this may become either neutron or black hole. Black hole formation be triggered mass accretion change in high-density equation state. We consider possibility happens when flux is still measurably high. If occurs, then neutrino signal from supernova will terminated abruptly (the...
Nuclear \ensuremath{\beta} decays of highly ionized atoms under laboratory conditions are studied. Theoretical predictions \ensuremath{\beta}-decay rates given for a few cases in which bound-state decay produces particularly interesting effects. A possible storage-ring experiment is proposed measuring rates, will be most easily applied to the $^{3}$${\mathrm{H}}^{+}$. .AE
We discuss nuclear reactions which could play a role in Big Bang Nucleosynthesis (BBN). Most of these involve lithium and beryllium isotopes the rates for some have not previously been included BBN calculations. Few are well studied laboratory. also novel effects reactions, including thermal population target states, resonant enhancement, non-thermal neutron reaction products. perform sensitivity studies show that even given considerable physics uncertainties, most minimal leverage on...