Total Widths And Slopes From Complex Regge Trajectories
High Energy Physics - Phenomenology
2009-10-31 v1
Abstract
Maximally complex Regge trajectories are introduced for which both Re and Im grow as ( small and positive). Our expression reduces to the standard real linear form as the imaginary part (proportional to ) goes to zero. A scaling formula for the total widths emerges: constant for large M, in very good agreement with data for mesons and baryons. The unitarity corrections also enhance the space-like slopes from their time-like values, thereby resolving an old problem with the trajectory in charge exchange. Finally, the unitarily enhanced intercept, , \nolinebreak is in good accord with the Donnachie-Landshoff total cross section analysis.
Keywords
Cite
@article{arxiv.hep-ph/9804270,
title = {Total Widths And Slopes From Complex Regge Trajectories},
author = {S. Filipponi and G. Pancheri and Y. Srivastava},
journal= {arXiv preprint arXiv:hep-ph/9804270},
year = {2009}
}
Comments
9 pages, 3 Figures