Narrow-width approximation limitations
arXiv:hep-ph/0703077 · doi:10.1016/j.physletb.2007.04.036
Abstract
The quality of the narrow-width approximation is examined for partonic and convolved cross sections of sample processes. By comparison with accurate predictions significant limitations are revealed.
4 pages, 10 figures; refs. reordered, version to be published in Phys. Lett. B
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