Structure of Mass 15: TheN14(p,γ)O

Abstract

We have studied states in~5 0 between 10.91and 13.02-MeV excitation as resonances in thẽ 4N(p, y)~O and~4N(P, P'y) reactions. Several new states are reported, and the elastic, inelastic, and y-ray partial widths are given for some of the levels. The levels are compared with corresponding levels in the mirror nucleus N. Of particular interest are the 2' and &+, T =2 states which should lie in this region. The results imply more mixing of these states in 0 with nearby 7 =2 levels than is observed in N. However, most of the T=g strength in 0

On mirror states of negative parity in mass 15 nuclei

“…Therefore, we propose J~= 3/2-for the 9.93 MeV level in lSN. This agrees with the suggestion of Phillips et aL [3] who have expressed doubts on the previous positive parity assignment of Ref. [7].…”

“…1) are connected by arrows. We have added results of other recent experimental work [3,8,9,15,16] to the summary of Ajzenberg-Selove [4]. The mirror relationships and most of the spins appear to be fairly unambiguous.…”

“…2 differs in several aspects from other recent attempts (Refs. [2,3,16,17]) to establish mirror relations in mass 15 nuclei and correspondence to the calculations by Lie and Engeland (Ref. [2]).…”

“…Yet, Lie and Engeland [2] have recently stated that a "rather unclear situation for the negative parity levels in 1sO and lSN" exists. For the states of ~SO above 11 MeV investigations [3] of the 14N(p,~))lSN and 14N(p,p'7)14N reactions have supplemented the existing compilation (Ref. [4]).…”

Neglected Disease – African Sleeping Sickness: Recent Synthetic and Modeling Advances

“…Polyamines are generally involved in growth and differentiation [64][65][66][67] within the cell and their analogs are also used as anticancer agents, antiparasitic agents, antidiarrhoeals, anti-HIV agents, metal chelators, and gene delivery agents. Since the inhibition of the initial polyamine biosynthesis enzyme, ornithine decarboxylase, by DL-α-difluoromethylornithine (DFMO) is toxic to African trypanosomes cells, [68,69] polyamines can become a promising anti-trypanosomal compound.…”