Decays of the π + π − atom
نویسندگان
چکیده
منابع مشابه
A theoretical study on halogen-π interactions: X-C2-Y…C8H8 complexes
M06-2X functional was employed to study halogen-π interactions in X-C2-Y…C8H8 complexes (X, Y=H, F, Cl, and Br). In fact, interactions of mono- or di-halogenated acetylenes and planar cyclooctatetraene as an anti-aromatic π system were considered. Relationship between binding energies of the complexes and charge transfer effects was investigated. Also, electronic charge density values were calc...
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The polymeric compound, {(C10H9N2)[Mn(C7H3NO4)2].(C10H8N2).6H2O}n, was prepared by the reaction of manganese (II) nitrate with pyridine-2,3-dicarboxylic acid, (py-2,3-dcH2) and 4,4'-bipyridine (4,4'-bipy) in a 1:2:4 molar ratio. The crystal system of the complex is monoclinic with space group P21/n and four molecules per unit cell. The unit cell parameters are: a = 22.2099(15) Å, b = 6.6599(4)...
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متن کاملar X iv : h ep - p h / 04 05 03 4 v 1 5 M ay 2 00 4 Spectra and decays of ππ and πK atoms
We describe the spectra and decays of π + π − and π ± K ∓ atoms within a non-relativistic effective field theory. The evaluations of the energy shifts and widths are performed at next-to-leading order in isospin symmetry breaking. We provide general formulae for all S-states, and discuss the states with angular momentum one in some detail. The prediction for the lifetime of the π ± K ∓ atom in ...
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