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Article: Research findings from University of Helsinki update understanding of physics.
- Article from:
- Physics Week
- Article date:
- November 10, 2009
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According to recent research from Helsinki, Finland, "We present the first measurement of the mass of the top quark in a sample of t (t) over bar → l (nu) over barb (b) over barq (q) over bar events (where l = e, mu) selected by identifying jets containing a muon candidate from the semileptonic decay of heavy-flavor hadrons (soft muon b tagging)."
"The p (p) over bar collision data used correspond to an integrated luminosity of 2 fb(-1) and were collected by the CDF II detector at the Fermilab Tevatron Collider. The measurement is based on a novel technique exploiting the invariant mass of a subset of the decay particles, specifically the lepton from the W ...