| 释义 |
ˈsuperˌmultiplet Physics.
[super- 6 b.]
a. A group of transitions in an atom between spectral terms of different multiplicity, all the transitions involving the same change in the orbital quantum number l of an electron from the same initial value.
1927Russell & Meggers in Sci. Papers Bureau of Standards (U.S.) XX. 331 The five terms first mentioned are evidently closely related, and their combinations with the triad 3P, 3D′, 3F can be arranged in the form of a ‘supermultiplet’. 1935Condon & Shortley Theory Atomic Spectra ix. 245 The set of all lines arising in transitions between two polyads..having the same parent configuration is known as a supermultiplet. 1972I. I. Sobel'man Introd. Theory Atomic Spectra xxxi. 313 By summing eqn. (31.48) over all transitions J → J′ within the given multiplet we obtain the line strength of this multiplet... Summing over LL′..gives the line strength of the supermultiplet.
b. In particle physics, a multiplet (sense b) in the broader sense, comprising particles of different hypercharge as well those of different charge.
1952Ann. Rev. Nucl. Sci. I. 44 The two states belong to the same supermultiplet (in this case a single charge multiplet with S = ½ and T = ½). 1964New Scientist 27 Feb. 523/3 The discovery of the omega-minus confirms that other groupings of particles into families or ‘supermultiplets’ are valid. 1972G. L. Wick Elementary Particles v. 82 They thought that all these particles might belong to a larger multiplet, or supermultiplet, which connects both different isotopic spin and different strangeness. |