Results 41 to 50 of about 13,104,853 (333)

Nuclear reaction uncertainties, massive gravitino decays and the cosmological lithium problem [PDF]

, 2010
We consider the effects of uncertainties in nuclear reaction rates on the cosmological constraints on the decays of unstable particles during or after Big-Bang nucleosynthesis (BBN).
R. Cyburt, J. Ellis, B. Fields, F. Luo, K. Olive, V. Spanos   +5 more
semanticscholar   +1 more source

Theoretical studies in nuclear reaction and nuclear structure. Final report, January 1, 1975--June 30, 1976

, 1977
Progress in theoretical research is reported under the following readings: (1) few nuclear reactions, Eikonal approximations, and optical models; (2) pion reactions; (3) nuclear structure by reaction studies; (4) nuclear dynamics ...
Banerjee, M. K., Griffin, J. J.
core   +1 more source

Quantum Control for Neutrons in Nuclear Reaction [PDF]

, 2021
Quantum control of neutrons in nuclear reaction in considered in this work. Neutrons fission from uranium 235U of chain reaction is interested to be controlled as target theoretically.
Quan-Fang, Wang
core   +1 more source

Nuclear Level Densities [PDF]

EPJ Web of Conferences
Nuclear reaction models, and in particular compound nucleus reactions, require the knowledge of nuclear level densities (NLDs), among other ingredients. For decades, analytical expressions have been used in nuclear reaction codes, due to the freedom they
Hilaire Stéphane, Goriely Stéphane, Péru Sophie   +2 more
doaj   +1 more source

TENDL-astro: A new nuclear data set for astrophysics interest [PDF]

Nuclear Physics
In this work, we are presenting a new database of astrophysical interest, based on calculations performed with the nuclear reaction code TALYS. Four quantities are systematically calculated for over 8000 nuclides: cross sections, reaction rates ...
D. Rochman, A. Koning, S. Goriely, S. Hilaire   +3 more
semanticscholar   +1 more source

Stripping Reactions and Nuclear Shell Model [PDF]

Progress of Theoretical Physics, 1955
It has been pointed out by many authorsll2l that the angular distributions from certain (d, p) and (d, n) reactions should give a sensitive measure of the accuracy of the nuclear structure in ascribing definite orbital angular momentum states to nucleons in a nucleus.
Sueji Okai, Mitsuo Sano
openaire   +1 more source

A New Generation of Standard Solar Models [PDF]

, 2016
We compute a new generation of standard solar models (SSMs) that includes recent updates on some important nuclear reaction rates and a more consistent treatment of the equation of state.
N. Vinyoles, A. Serenelli, F. Villante, S. Basu, Johannes Bergström, M. Gonzalez-Garcia, M. Maltoni, C. Peña-Garay, N. Song   +8 more
semanticscholar   +1 more source

Microbiome−host proteostasis crosstalk—An emerging perspective on mechanisms and interventions toward healthy longevity

FEBS Letters, EarlyView.
Proteostasis and the gut microbiota play a key role in shaping host physiology. Microbiota‐derived metabolites, vitamins, and RNA modulate host proteostasis. Findings from model systems, including C. elegans, indicate microbes can either stabilize or disrupt host proteostasis.
Abhishek Anil Dubey, Maria Ermolaeva
wiley   +1 more source

Astrophysical reaction rates with realistic nuclear level densities [PDF]

, 2022
Realistic nuclear level densities (NLDs) obtained within the spectral distribution method (SDM) are employed to study nuclear processes of astrophysical interest.
Sangeeta, A, Ghosh, T., Agrawal, B. K., Sangeeta, Saxena, G., Maheshwari, B., B. Maheshwari, T. Ghosh, null Sangeeta, G. Saxena, B. K. Agrawal   +10 more
core   +1 more source

Sensitivity of Nuclear Reaction Rates in X-Ray Burst Models

The Astrophysical Journal
Type I X-ray bursts (XRBs) are thermonuclear runaways on the surface of accreting neutron stars, powered by rapid proton-capture and alpha-capture processes on neutron-deficient nuclei.
I. Sultana, A. Estradé, B. S. Meyer, H. Schatz   +3 more
doaj   +1 more source