Factorization and transverse momentum for two-hadron production in inclusive $e^{+}{e}^{-}$ annihilation

Abstract

We study factorization of processes involving two fragmentation functions in the case of very small transverse momenta. We consider two-hadron production in inclusive $e^{+}{e}^{-}$ annihilation and demonstrate a new simple and illustrative method of factorization for such processes including leading order ${\alpha }_S$ corrections.

Comments: 14 pages, 3 figures. Version for PEPAN Letters