نتایج جستجو برای: neutron density
تعداد نتایج: 452104 فیلتر نتایج به سال:
Although crucial for resolving the issue of charge symmetry in the nuclear force, direct measurement of nn-scattering by colliding free neutrons has never been performed. At present the Russian pulsed reactor YAGUAR is the best neutron source for performing such a measurement. It has a through channel where the neutron moderator is installed. The neutrons are counted by a neutron detector locat...
Nuclear level density (NLD) is one of the properties of nuclei with widespread applications in astrophysics and nuclear medicine. Since there has been little experimental and theoretical research on the study of nuclei which are far from stability line, studying NLD for these nuclei is of crucial importance. Also, as NLD is an important input for nuclear research codes, hence studying the metho...
Correlated isotopic anomalies in osmium (Os, Os, Os, measured with respect to Os) extracted from primitive carbonaceous chondrites tightly constrain the ratio to be ( 5%). A 190 188 j ( Os)/j ( Os) 0.859 0.042 n n recent measurement of the Maxwellian-averaged neutron-capture cross sections (MACSs) for 186, 187, Os lowered the jn( Os) by 27% but did not measure jn( Os). From the jn( Os)/jn( Os) ...
The role of the isoscalar hyperon Λ in probing the density dependence of the nuclear symmetry energy is studied in multi-Λ hypernuclei, hyperon-rich matter and neutron stars in relativistic models. Relationships between the properties of three types of objects and the neutron thickness in Pb are established with respect to the isoscalar-isovector coupling that modifies the density dependence of...
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