منابع مشابه
Laser Spectroscopy of Unstable Isotopes
High-resolution methods of o p t i c a l spectroscopy i n unstable isotopes a r e discussed, with emphasis on fast-beam l a s e r spectroscopy. The chief goal i s t o ob ta in information about nuclear ground-state p roper t i es from hyperfine s t r u c t u r e and isotope s h i f t s . The methods have t o be s u i t a b l e f o r use with minute samples, due t o t h e small amount of rad ioa...
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We study both the spin-average and spin-dependent structure functions ofthe lithium isotopes, 6−11Li, which could be measured at RIKEN and othernuclear facilities in the future. It is found that the light-cone momentumdistribution of the valence neutron in the halo of 11Li is very sharp and sym-metric around y = 1, because of the weak binding. This implies that suchneutrons ...
متن کاملPhotoneutron cross sections for unstable neutron-rich oxygen isotopes.
The dipole response of stable and unstable neutron-rich oxygen nuclei of masses A = 17 to A = 22 has been investigated experimentally utilizing electromagnetic excitation in heavy-ion collisions at beam energies about 600 MeV/nucleon. A kinematically complete measurement of the neutron decay channel in inelastic scattering of the secondary beam projectiles from a Pb target was performed. Differ...
متن کاملHigh efficiency magneto-optical trap for unstable isotopes
We have trapped over 250 000 Fr in a new on-line high efficiency magneto-optical trap ~MOT!. We describe the new apparatus and present an overview of high-efficiency MOTs for trapping rare isotopes. These traps depend on three critical components: a dry-film coating, a neutralizer, and the optical trap. We have developed a series of independent tests of the effectiveness of these components, an...
متن کاملParametrizing Unstable and Very Unstable Manifolds
Existence and uniqueness theorems for unstable manifolds are well-known. Here we prove certain refinements. Let f : (C, 0) → C be a germ of an analytic diffeomorphism, whose derivative Df(0) has eigenvalues λ1, . . . , λn such that |λ1| ≥ · · · ≥ |λk| > |λk+1| ≥ · · · ≥ |λn|, with |λk| > 1. Then there is a unique k-dimensional invariant submanifold whose tangent space is spanned by the generali...
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ژورنال
عنوان ژورنال: Journal of Biological Chemistry
سال: 1939
ISSN: 0021-9258
DOI: 10.1016/s0021-9258(18)73713-7