Legally, no. You can always try to mail them and provide information good enough to make them activate your account again, that proves you didn't break the tos that is. Using a new domain, a new name, address and signing up from another IP works too.
yes you can, register with the new website with has good traffic, take an easy with your name, i've got banned 3 times from adsense and this is my 4 account and wanna play "clean" LOL....