| 释义 |
gravitino, n. Particle Physics.|grævɪˈtiːnəʊ|
[f. graviton n. + *-ino.
The name gravitino was also proposed by F. A. E. Pirani (1955, in Proc. R. Soc. CCXXVIII. 457) as a name for hypothetical particles of zero rest mass and negative energy, postulated in his theory of the continual creation of matter.]
The supersymmetric counterpart of a graviton, with spin {threeon2} instead of 2.
1977Sci. Amer. July 59/3 The theory that is of most immediate interest is one postulating a symmetry between gravitons with a spin of 2 and hypothetical fermions with a spin of {threeon2}. This theory has been given the name ‘supergravity’; the spin-{threeon2} particles might be called ‘gravitinos’. 1982Nature 29 July 421/1 Supersymmetry forces us, at long last, to take quantum gravity into account, if only in adding the gravitino to our elementary particles zoo. 1986P. C. West Introd. Supersymmetry & Supergravity x. 51 The only other such terms come from the auxiliary field terms in the gravitino variations in the Rarita–Schwinger term. |