Abstract
A model for the Q 2-dependent dual amplitude with Mandelstam analyticity (DAMA) is proposed. The modified DAMA (M-DAMA) preserves all the attractive properties of DAMA, such as its pole structure and Regge asymptotics, and leads to a generalized dual amplitude A(s, t, Q 2). This generalized amplitude can be checked in the known kinematical limits; i.e., it should reduce to the ordinary dual amplitude on mass shell and to the nuclear structure function when t = 0. In such a way, we complete a unified “two-dimensionally dual” picture of strong interaction. By comparing the structure function F 2, resulting from M-DAMA, with phenomenological parametrizations, we fix the Q 2 dependence in M-DAMA. In all studied regions, i.e., in the large-and low-x limits as well as in the resonance region, the results of M-DAMA are in qualitative agreement with the experiment.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
