S-Wave Neutron Resonance

Abstract

It is shown that, although s-wave neutron resonance is ruled out in a conventional form of nuclear potential, the polarization of the deformed core nucleus can produce 1/2+ resonance. Using the coupled-channel method, we obtain this result concerning the 1/2+ state of 9Be. The state may be one example of the resonances suggested by the optical potential theory of Feshbach. n/2. This peak is out of the usual conception of the resonance. 1 l (ii) Anti-resonsnce. 7 l The phase shift crosses n/2 downwards. The peak of at University of Massachusetts Medical School on April 5, 2015 http://ptp.oxfordjournals.org/ Downloaded from S-Wave Neutron Resonancethe 1/2+ state should be called "anti-resonance". (iii) Anomaly of the three-body break-up effect of the 9 Be system. 8 > (iv) Shell model and alpha cluster model calculation. 9 >

Proprotein cleavage of E‐cadherin by furin in baculovirus over‐expression system: potential role of other convertases in mammalian cells

“…They are subdivided into several distinct subgroups of which the most important are classical cadherins type I (e.g. E-, P-and N-cadherins), classical cadherins type II (cadherin-4 to -15), and desmosomal cadherins, with desmogleins and desmocollins [2,6]. E-cadherin, the major representative of classical cadherins is present in the adherens junctions of epithelial cells.…”

Resonance width for a particle-core coupling model with a square-well potential

“…Especially, the phase shift would not pass through π/2. For a deeper potential, the phase shift may pass through π/2, but, for s-wave scattering, it is always downwards in energy [26]. It is then misleading to call it a physical resonance state.…”

“…Let us now extend the formula for the resonance width discussed in the previous section to a multi-channel case. To this end, we consider a system with a particle coupled to the quadrupole motion of a core nucleus, whose potential is given by [18,26],…”

“…A similar mechanism appears in the two-neutron decay of 4, but obtained by setting the excitation energy of the core nucleus to be zero. 26 O, for which the resonance energy is extremely small and the decay dynamics is largely determined by the s-wave component in the wave function [40,41].…”

New Description of Nuclear Scattering at Intermediate Energies and Permissibility of Glauber Expression to Large-Angle Elastic Scattering

“…7) to prove that there exists no s-wave resonance for a neutral particle scattered by an attractive potential.…”