Discrete symmetries are studied in warped space-times with one extra dimension. In particular, we analyze the compatibility of five- and four-dimensional charge conjugation, parity, time reversal, and the orbifold symmetry Z2 with localization of fermions on the four-dimensional brane-world and Lorentz invariance. We then show that, when a suitable topological scalar field (the "kink") is included, fermion localization is a consequence of (five-dimensional) CPT invariance. ©2001 The American Physical Society.
Discrete symmetries and localization in a brane-world / Casadio R.; Gruppuso A.. - In: PHYSICAL REVIEW D. - ISSN 0556-2821. - STAMPA. - 64:2(2001), pp. 025020.1-025020.7. [10.1103/PhysRevD.64.025020]
Discrete symmetries and localization in a brane-world
Casadio R.;
2001
Abstract
Discrete symmetries are studied in warped space-times with one extra dimension. In particular, we analyze the compatibility of five- and four-dimensional charge conjugation, parity, time reversal, and the orbifold symmetry Z2 with localization of fermions on the four-dimensional brane-world and Lorentz invariance. We then show that, when a suitable topological scalar field (the "kink") is included, fermion localization is a consequence of (five-dimensional) CPT invariance. ©2001 The American Physical Society.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
