HAWKING RADIATION OF BLACK p-BRANES FROM GRAVITATIONAL ANOMALY

We investigate the Hawking radiation of black p-branes of superstring theories using the method of anomaly cancelation, specially, we use the method of [S. Iso, H. Umetsu and F. Wilczek, Phys. Rev. Lett. 96, 151302 (2006); Phys. Rev. D 74, 044017 (2006)]. The metrics of black p-branes are spherically symmetric, but not the Schwarzschild type. In order to simplify the calculation, we first make a coordinate transformation to transform the metric to the Schwarzschild type. Then we calculate its energy-momentum flux from the method of anomaly cancelation of the above mentioned references. The obtained energy-momentum flux is equal to a black body radiation, the thermodynamic temperature of the radiation is equal to its Hawking temperature. And we find that the results are not changed for the original non-Schwarzschild type spherically symmetric metric.