Consider the narrow resonance (m 9 460 GeV) that was observed at the e e colliders in the channels e e and in e e hadrons Its width is 54 keV The measured peak areas are In the BreitWigner approximation calculate the partial widths and h Assume all the leptonic widths to be equal on(E)dE 310 nb MeV Oyu(E)dE 8 nb MeV and

Question: Consider the narrow resonance (m = 9.460 GeV) that was observed at the e + e - colliders in the channels e +

Consider the narrow resonance ϒ (m_ϒ = 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 Γ_Υ= 54 keV. The measured ‘peak areas’ are

on(E)dE = 310 nb MeV. Oyu(E)dE = 8 nb MeV and

In the Breit–Wigner approximation calculate the partial widths Γ_μ and Γ_h. Assume all the leptonic widths to be equal.

on(E)dE = 310 nb MeV. Oyu(E)dE = 8 nb MeV and

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