نتایج جستجو برای: nuclear density distributions

تعداد نتایج: 757009  

1999
R. Vogt

We compare the fractions of the hard and geometric cross sections as a function of impact parameter. For a given definition of central collisions, we calculate the corresponding impact parameter and the fraction of the hard cross section contained within this cut. We use charm quark production as a definite example. In this note, revised from Ref. [1], standard nuclear density distributions are...

ژورنال: اندیشه آماری 2015
Aghabazaz, Zeynab, Alamatsaz, Mohammad Hossein,

The two-parameter Birnbaum–Saunders (BS) distribution was originally proposed as a failure time distribution for fatigue failure caused under cyclic loading. BS model is a positively skewed statistical distribution which has received great attention in recent decades. Several extensions of this distribution with various degrees of skewness, kurtosis and modality are considered. In particular, a...

2008
G. A. Lalazissis S. E. Massen C. P. Panos S. S Dimitrova

The information entropy of a nuclear density distribution is calculated for a number of nuclei. Various phenomenological models for the density distribution using different geometry are employed. Nuclear densities calculated within various microscopic mean field approaches are also employed. It turns out that the entropy increases on going from crude phenomenological models to more sophisticate...

Journal: :IEEE Transactions on Magnetics 1986

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2008
James G Kempf Michael A Miller Daniel P Weitekamp

The nanoscale distributions of electron density and electric fields in GaAs semiconductor devices are displayed with NMR experiments. The spectra are sensitive to the changes to the nuclear-spin Hamiltonian that are induced by perturbations delivered in synchrony with a line-narrowing pulse sequence. This POWER (perturbations observed with enhanced resolution) method enhanced resolution up to 1...

Journal: :Communications in Theoretical Physics 2022

Abstract We propose an efficient approach to describe the fission-fragment charge yields for actinides based on driving potential of fissioning system. Considering properties primary fission fragments at their ground states, potential, which represents energies system around scission configuration and closely relates fragments, can be unambiguously quickly obtained from Skyrme energy-density fu...

2005
Roberta Ghetti Johan Helgesson

Understanding the emission time sequence of neutrons, protons, and light charged particles can contribute to the understanding of the nuclear interaction and of the structure of nuclear matter, and it may even be sensitive to details of the nuclear equation of state, such as the density dependence of the nuclear symmetry energy. Small angle two-particle correlation functions can be used to dedu...

2001
T. J. Mahoney Eric Emsellem

Density waves in the central kpc of galaxies, taking the form of spirals, bars and/or lopsided density distributions are potential actors of the redistribution of angular momentum. They thus play an important role in the overall evolution of the central structures, not mentioning the possible link with the active/non-active nucleus. I present here kinematical evidences for the presence of such ...

2003
Kei Iida Kazuhiro Oyamatsu

We calculate differential cross sections for proton-nucleus elastic scattering by using a Glauber theory in the optical limit approximation and nucleon distributions that can be obtained in the framework of macroscopic nuclear models in a way dependent on the equation of state of uniform nuclear matter near the saturation density. We find that the peak angle calculated for unstable neutron-rich...

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