[1] Vietnamese Acad Sci & Technol, Inst Phys, Hanoi, Vietnam
[2] Univ Estadual Paulista, Inst Fis Teor, BR-01140070 Sao Paulo, Brazil
[3] Coll William & Mary, Particle Theory Grp, Dept Phys, Williamsburg, VA 23187 USA
[4] Tokai Univ, Dept Phys, Hiratsuka, Kanagawa 2591292, Japan