Hi, I am an international student studying in US. I have a Physics GPA of 4.0 and cumulative GPA of ~ 3.9. I recently took a PGRE and haven't obtained my scores yet. I am guessing that I should get a score of about 650 or so. I have pretty good research experiences in reputed places. I have one publication as well. I have also done/am doing Physics tutoring, Lab TA and grading in my college. I want to get into one of the top graduate schools in particle physics program. It would be highly appreciated if someone could give me some idea if it's totally illogical for me to expect to get into good grad. program with my present qualification/scores.