AZ boson (m(Z) = 91.19 GeV) is produced in a hadron collider. We measure its decays into a μ- and a μ+. Use the values from the lecture for: gz = 0.74, sin20w = 0.2315 and h = 6.6 × 10-16 eV. (a) Calculate the decay rate into μ+μ¯ pairs in GeV (b) Calculate the branching fraction into μμ-pairs, assuming an approximate total Z decay rate of Iz≈ 2.5 GeV (c) Calculate the life time of the Z boson in units of seconds using the information provided in this question.
AZ boson (m(Z) = 91.19 GeV) is produced in a hadron collider. We measure its decays into a μ- and a μ+. Use the values from the lecture for: gz = 0.74, sin20w = 0.2315 and h = 6.6 × 10-16 eV. (a) Calculate the decay rate into μ+μ¯ pairs in GeV (b) Calculate the branching fraction into μμ-pairs, assuming an approximate total Z decay rate of Iz≈ 2.5 GeV (c) Calculate the life time of the Z boson in units of seconds using the information provided in this question.
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Transcribed Image Text:AZ boson (m(Z) = 91.19 GeV) is produced in a hadron collider. We measure its decays into a μ-
and a μ+. Use the values from the lecture for: gz = 0.74, sin20w = 0.2315 and h = 6.6 × 10-16 eV.
(a) Calculate the decay rate into μ+μ¯ pairs in GeV
(b) Calculate the branching fraction into μμ-pairs, assuming an approximate total Z decay
rate of Iz≈ 2.5 GeV
(c) Calculate the life time of the Z boson in units of seconds using the information provided in
this question.
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