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The decomposition of the product of a momentum-zero- and a mass-zero-representation of the Poincaré group

✍ Scribed by Manfred Schaaf

Publisher
Springer
Year
1969
Tongue
English
Weight
408 KB
Volume
229
Category
Article
ISSN
0939-7922

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📜 SIMILAR VOLUMES

Nontrivial extensions of a representatio
Nontrivial extensions of a representation of the Poincaré group with mass and helicity zero by its tensorial product
✍ G. Rideau 📂 Article 📅 1984 🏛 Springer 🌐 English ⚖ 408 KB

Let U(a, A) be a representation of the Poincard group ~ with mass and helicity zero, realized in the space of C ~-functions with compact support on IR 3 , without the origin. Let U(2)(a, A) denote the tensorial product of U(a, A) by itself. We explicitly determine the cocycles of extension of U(a, A

Semigroup representations of the Poincar
Semigroup representations of the Poincaré group and relativistic Gamow vectors
✍ A. Bohm; H. Kaldass; S. Wickramasekara; P. Kielanowski 📂 Article 📅 2000 🏛 Elsevier Science 🌐 English ⚖ 104 KB

describing quasistable states. In the relativistic domain this leads to Poincare semigroup representations which are í 2 characterized by spin j and by complex invariant mass square s s s s M y G . Relativistic Gamow kets have all the Ž . R R R 2 properties required to describe relativistic resonanc