Consider the narrow resonance (m = 9.460 GeV) that was observed at the e +
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Consider the narrow resonance ϒ (mϒ = 9.460 GeV) that was observed at the e+e- colliders in the channels e+e-→μ+μ- and in e+e-→hadrons. Its width is ΓΥ = 54 keV. The measured ‘peak areas’ are
In the Breit–Wigner approximation calculate the partial widths Γμ and Γh. Assume all the leptonic widths to be equal.
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Related Book For 
Introduction to Elementary Particle Physics
ISBN: 978-1107050402
2nd edition
Authors: Alessandro Bettini
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