منابع مشابه
Nuclear electric quadrupole moment of gold.
The nuclear quadrupole moment for (197)Au has been determined on the base of the state-of-art relativistic molecular calculations. The experimental shifts in the nuclear coupling constants in the series of molecules AuF, XeAuF, KrAuF, ArAuF, (OC)AuF, and AuH have been combined with highly accurate determinations of the electric field gradient (EFG) at the gold nucleus, obtained by molecular rel...
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We address the question of the intrinsic quadrupole moment Q0 of the nucleon in various models. All models give a positive intrinsic quadrupole moment for the proton. This corresponds to a prolate deformation. We also calculate the intrinsic quadrupole moment of the ∆(1232). All our models lead to a negative intrinsic quadrupole moment of the ∆ corresponding to an oblate deformation. PACS numbe...
متن کاملHigh-Efficiency Resonant Cavity Quadrupole Moment Monitor
Measurement of the beam quadrupole moment at several locations can be used to reconstruct the beam envelope and emittance parameters. The measurements can be performed in a non-intercepting way using a set of quadrupole-mode cavities. We present a cavity design with an optimized quadrupole moment shunt impedance. The cavity properties can be characterized using a wire test method to insure symm...
متن کاملArene-cation interactions of positive quadrupole moment aromatics and arene-anion interactions of negative quadrupole moment aromatics.
Intermolecular interactions involving aromatic pi-electron density are widely believed to be governed by the aromatic molecular quadrupole moment, Theta(zz). Arene-cation binding is believed to occur primarily with negative Theta(zz) aromatics, and arene-anion binding is believed to occur largely with positive Theta(zz) aromatics. We have performed quantum mechanical computations that show the ...
متن کاملElectronic quadrupole and hexadecapole moment of Ni II ground state
We obtain the electronic quadrupole and hexadecapole moments of the Ni II ground state to be -0.493 au and 0.204 au using relativistic configuration interaction methodology. These results are in good agreement with available experimental results. Apparently this is the first time an electronic hexadecapole moment has been calculated for an atom.
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ژورنال
عنوان ژورنال: Physics Letters B
سال: 2008
ISSN: 0370-2693
DOI: 10.1016/j.physletb.2008.03.049