A threshold-improved narrow-width approximation for BSM physics
arXiv:0708.1161 · doi:10.1088/1126-6708/2008/04/055
Abstract
A modified narrow-width approximation that allows for O(Gamma/M)-accurate predictions for resonant particle decay with similar intermediate masses is proposed and applied to MSSM processes to demonstrate its importance for searches for particle physics beyond the Standard Model.
10 pages, 5 figures, version to appear in JHEP
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