منابع مشابه
Test of Symmetries with Neutrons and Nuclei
Precision experiments at low energies probing weak interaction are a very promising and complementary tool for investigating the structure of the electro-weak sector of the standard model, and for searching for new phenomena revealing signs for an underlaying new symmetry. With the advent of new technologies in particle trapping and production of beams for exotic nuclei as well as ultracold neu...
متن کاملRecoil momentum and Incoherent halo-neutrons in Nuclei
I propose that the differences between neutron skin and neutron halo can be expressed in terms of factorizability of the nuclear wave function , which produces some signatures in observables different from usual nuclei. Discussions detecting such state are given. One of the new immediate observable quantity is the asymmetry due to the shift of the center in the gaussian momentum distribution of...
متن کاملNegative Muon Charge Excess in Cosmic Showers Initiated by Neutrons
The well known charge positive excess of muons in cosmic rays has been reproduced at various altitudes, using the CORSIKA simulation program with a classical primary spectrum dominated by protons. In the case of simulations with primary neutrons, the excess of negative charged muons appears as a consequence of isospin conservation, charge conservation and charge exchange mechanisms; as it could...
متن کاملBuilding light nuclei from neutrons, protons, and pions
An effective theory is a systematic approximation to some underlying dynamics (which may be known or unknown) that is valid in some specified regime. An effective theory is not a model, since its systematic character means that, in principle, predictions of arbitrary accuracy may be made. However, if this is to be true then a small parameter, such as the α of quantum electrodynamics, must gover...
متن کاملEffective mass of free neutrons in neutron star crust
The inner layers of a neutron star crust, composed of a Coulomb lattice of neutron rich nuclear clusters immersed in a sea of “free” superfluid neutrons, are closely analogous to periodic condensed matter systems such as electronic, photonic or phononic crystals. Applying methods from solid state physics to the neutron star context, we study the transport properties of those “free” neutrons for...
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ژورنال
عنوان ژورنال: Physical Review
سال: 1959
ISSN: 0031-899X
DOI: 10.1103/physrev.113.547