Little groups and Maxwell-type tensors for massive and massless particles

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1997-11-15

Author

Baskal, S
Kim, YS

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The massive and massless representations of four-vectors and Maxwell-type tensors are constructed as bilinear combinations of SL(2, C)-spinors and are evaluated on a unified description upon adopting the group contraction procedure of O(3)-like little group to E(2)-like little group. Contraction of massive particle representations leads to gauge-dependent vectors as well as the gauge-independent ''state vectors'' constructed by Weinberg. It, is shown that gauge degrees of freedom associated with the translation-like transformations of the E(2)-like little group can be traced to the spinors that undergo spin hips in the infinite-momentum/zero-mass limit.

Subject Keywords

General Physics and Astronomy

URI

https://hdl.handle.net/11511/65108

Journal

EUROPHYSICS LETTERS

DOI

https://doi.org/10.1209/epl/i1997-00474-0

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Department of Physics, Article

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Citation Formats

S. Baskal and Y. Kim, “Little groups and Maxwell-type tensors for massive and massless particles,” EUROPHYSICS LETTERS, pp. 375–380, 1997, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/65108.