A cross section scan for an unnamed hadronic resonance gives the following points…

PHYSICS · Subjective · Fermi University Physics · Scientific Practice & Experimental Methods · Particle Physics & Quantum Fields · Particles, interactions and experiment

Particle Physics, Ch Resonances, widths and the Breit-Wigner line shape

Problem

A cross section scan for an unnamed hadronic resonance XX gives the following points (listed in the data below). Data (s\sqrt s in MeV, σ\sigma in nb): (750,32)(750,32), (760,58)(760,58), (770,95)(770,95), (775,110)(775,110), (780,97)(780,97), (790,56)(790,56), (800,30)(800,30). Estimate the full width at half maximum from these points, and use it to estimate the mean lifetime of XX.

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