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NUCLEAR QUADRUPOLE MOMENT [1 record]
Record 1 - internal organization data 2009-11-03
Record 1, English
Record 1, Subject field(s)
- Atomic Physics
Record 1, Main entry term, English
- electric quadrupole moment
1, record 1, English, electric%20quadrupole%20moment
correct
Record 1, Abbreviations, English
Record 1, Synonyms, English
- electric quadruple momentum 2, record 1, English, electric%20quadruple%20momentum
correct
Record 1, Textual support, English
Record number: 1, Textual support number: 1 CONT
The nuclear electric quadrupole moment is a parameter which describes the effective shape of the ellipsoid of nuclear charge distribution. A non-zero quadrupole moment Q indicates that the charge distribution is not spherically symmetric. By convention, the value of Q is taken to be positive if the ellipsoid is prolate and negative if it is oblate. 1, record 1, English, - electric%20quadrupole%20moment
Record 1, French
Record 1, Domaine(s)
- Physique atomique
Record 1, Main entry term, French
- moment quadrupolaire électrique
1, record 1, French, moment%20quadrupolaire%20%C3%A9lectrique
correct, masculine noun
Record 1, Abbreviations, French
Record 1, Synonyms, French
Record 1, Textual support, French
Record number: 1, Textual support number: 1 CONT
Les constituants du noyau, protons et neutrons, se meuvent à l'intérieur du noyau atomique et possèdent des caractéristiques électromagnétiques. Cela a pour conséquence l'existence de moments angulaires associés aux nucléons et au noyau pris dans son ensemble. [...] - le moment quadrupolaire électrique Q. L'existence de ce moment s'explique par la déformation des noyaux : en règle générale, la distribution de charge (protons) dans le noyau n'a pas une symétrie parfaitement sphérique (auquel cas le moment Q serait nul). Autrement dit, à une distribution de protons asymétrique correspond un moment quadrupolaire électrique Q positif ou négatif. 1, record 1, French, - moment%20quadrupolaire%20%C3%A9lectrique
Record 1, Spanish
Record 1, Textual support, Spanish
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