| 释义 |
Majorana, n. Physics.|mæjɔːˈrɑːnə, maɪɔːˈrɑːnə|
[The name of Ettore Majorana (1906–38), Italian physicist.]
Used attrib. with reference to his ideas or to concepts arising out of his work, as Majorana effect, birefringence to light travelling in a direction at right angles to an applied magnetic field, observed in some liquids and some crystalline materials; Majorana force, the exchange force between two nucleons, in which charge and spin are both exchanged; Majorana neutrino, a neutrino which is a Majorana particle; Majorana particle, a particle of spin 1/2 which is its own antiparticle.
1938Proc. R. Soc. A. CLXVI. 524 The interaction is therefore just of the required form consisting of Heisenberg and Majorana forces of the right sign so as to allow one to make the triplet state of the deuteron the lowest stable state. 1960McGraw-Hill Encycl. Sci. & Technol. VIII. 68/1 Majorana effect. This deals with optical anisotropy of colloidal solutions. 1970Physical Rev. D I. 571 The current operator is shown to be timelike even for the spacelike solutions, and it is shown to lead to a finite process of emission of light by charged Majorana particles. 1980Physics Lett. B. XCIII. 390/2 A Majorana neutrino is its own antineutrino. Its mass is of course observable. 1984Nature 1 Mar. 14/1 If neutrinos are their own antiparticles (that is, are Majorana rather than Dirac particles), the probability of neutrinoless double β decay is greatly enhanced. 1987Nuclear Physics A. CDLXV. 26 It has now become possible to determine the strength of the Majorana force for the first time in a large number of nuclei. 1987Physics Lett. B. CXCVI. 218 (heading) Magnetic moments of Dirac and Majorana neutrinos. |