Black string corrections in variable tension braneworld scenarios

Understand

Braneworld models with variable tension are investigated, and the corrections on the black string horizon along the extra dimension are provided.

• Such corrections are encrypted in additional terms involving the covariant derivatives of the variable tension on the brane, providing profound consequences concerning the black string horizon variation along the extra dimension, near the brane.
• The black string horizon behavior is shown to be drastically modified by the terms corrected by the brane variable tension.
• In particular, a model motivated by the phenomenological interesting case regarding Eotvos branes is investigated.