Sudakov form factor in soft-collinear effective theory

por Zhengtao Wei (Universidad de Valencia)

martes 15 mar. 2005 12:00 → 13:00 Europe/Madrid

Sala Seminarios (Dpto. de Física Teórica (UVEG))

Sudakov form factor, the fermion form factor in the high energy limit, is an interesting topic because it is difficult to treat in conventional perturbation theory. I will discuss it from a scale point of view: effective field theory. The soft-collinear effective theory (SCET) and the idea of factorization are introduced. I will discuss how to sum the double-logs in SCET. The comparisons with other methods will be given.