Anti-neutron

The orthogonality condition of Eq. (253) can be interpreted somewhat differently. Since there are no negative neutrons (or anti-neutrons), and no processes to produce them, the source-free self-sustaining (or critical) system will have a neutron distribution that is positive definite. The neutron density in a critical reactor that is subjected to a physical source is ever increasing. In other words, the time-independent Eq. (252) can have no solution when T is a physical source. In order for Eq. (252) to have a steady-state solution,... 

Neutron n Proton p+ Anti Proton p Anti Neutron n... 

Anti-protonic atoms. Recently neutron density distributions in a series of nuclei were deduced from anti-protonic atoms [30], The basic method determines the ratio of neutron and proton distributions at large differences by means of a measurement of the annihilation products which indicates whether the antiproton was captured on a neutron or a proton. In the analysis two assumptions are made. First a best fit value for the ratio I / of the imaginary parts of the free space pp and pn scattering lengths equal to unity is adopted. Secondly in order to reduce the density ratio at the annihilation side to a a ratio of rms radii a two-parameter Fermi distribution is assumed. The model dependence introduced by these assumptions is difficult to judge. Since a large number of nuclei have been measured one may argue that the value of Rj is fixed empirically. 

It is worth pointing out that the fluid flow in our calculations of the merger (Rosswog et al. 2003) never becomes axisymmetric during the simulation and therefore Cowlings anti-dynamo theorem does not apply here. When the surfaces of the neutron stars come into contact, a vortex sheet forms between them... 

Charlet, L. Manceau, A.A. (1992a) X-ray absorption spectioscopic study of the sorption of Cr(III) at the oxide/water interface. II. Adsorption, coprecpitation, and surface precipitation on hydrous ferric oxide. J. Colloid Interface Sd. 148 443-458 Charlet, L. Manceau, A.A. (1992) X-ray absorption spectroscopic study of the sorption of Cr(III) at the oxide-water interface. J. Colloid Interface Sd. 148 425-442 Chatellier, X. Fortin, D. West, M.M. Leppard, G.G. Ferris, F.G. (2001) Effect of the presence of bacterial surfaces during the synthesis of Fe oxides by oxidation of ferrous ions. Fur. J. Mineral. 13 705-714 Cheetham, A.K. Fender, B.E.F. Taylor, R.I. (1971) High temperature neutron diffraction study of Fei. O. J. Phys. C4 2160-2165 Chemical Week (1988) Glidderfs anti rust secret is out." 15 10... 

The problem of anti ferromagnetic (AF) ordering in applied magnetic field observed at low temperatures in the high-T), cuprates from neutron scattering [1] (and supporting picture from STM measurements [2]) is intensively discussed now. This AF ordering (spin density wave (SDW)) is... 

Fig.4. Illustration of aligned 24 and 30 states in the (f7/2 9/2)6 (il3/2)2 N=90 configuration with all spin vectors of the valence particles aligned in the 30 state while one f7/2 neutron is "anti-aligned" in the 24 state. Combined with the lfJhn/2) Z=68 16 state it becomes possible to form aligned 46 and 40 states in l58Er. Thus, not considering band-mixing, an "yrast line" according to the thick dashed line results.

F.D. Brooks, M. Drosg, A. Buffler and M.S. Allie, Detection of anti-personnel landmines by neutron scattering and attenuation, Appl. Radiat. Isot., 61(1) (2004) 27-34. 

The rapid development of carborane chemistry is mainly due to their practical applications. For instance, the potential utility of carborane polymers as gaskets, O-rings, and electrical connector inserts has been reported. Their functionality for solvent extraction of radionuchdes as well as the potential medicinal value of the isoelectronic and isostructural boron analogues of biologically important molecules has been the subject of many review articles. For example, a number of boron compounds have been found to possess anti-inflammatory and antiarthritic activity in animal model studies. Boron compounds have also been implicated in studies designed to probe the importance of the so-called anionic subsite of acetylcholine esterase and Ach receptors. But, by far the most interesting practical apphcations of carboranes are in areas of boron neutron capture therapy (BNCT) and supramolecular assembly. 

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