J un 2 00 2 SIT-HEP / TM-7 Activated Sphalerons and Large Extra Dimensions

We present a new scenario for the baryon number violation that may take place in models with large extra dimensions. Our idea is interesting because leptogenesis with a low reheating temperature requires an alternative source of the B + L violation to convert the produced leptons into baryons. If one considers a model with an intermediate compactification… CONTINUE READING