Evaluate R (e + e - hadrons) /(e + e - +
Question:
Evaluate R ≡ σ(e+ e- → hadrons) /σ(e+ e- → μ+ μ-)
At
and at
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Vs = 2.5 GeV Vs = 4 GeV.
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Related Book For
Introduction to Elementary Particle Physics
ISBN: 978-1107050402
2nd edition
Authors: Alessandro Bettini
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