Vector Particles Tunneling From a New Class of Dilaton Black Holes

Abstract

In this work, we calculate the massive vector particles tunneling from a new class of dilaton spacetimes to study the Hawking temperature of those new black holes. First, by using the Proca equation and WKB approximation, we obtain the wave equations of vector particles. Then, according to the separation of variables technique, we obtain the tunneling rates and Hawking temperatures on the outer event horizons of those new dilaton black holes. The results show that the tunneling rates and Hawking temperatures of the new class of dilaton black holes are depended on the parameter α. When $\alpha \ne \sqrt 3 $ and 1, the tunneling rate and Hawking temperatures are related to the outer event horizon r+, the coefficients of dilatonic field α and γ, the positive constants b, and the cosmological constant. When $\alpha = \sqrt 3$ , T+ is related to the outer event horizon r+, positive constants b, and the cosmological constant. However, when α = 1, the Hawking temperature is only related to outer event horizon r+, positive constant b, and the cosmological.